Errata

2010 California Plumbing Code
Building Standards Commission Logo

California Code of Regulations
Title 24, Part 5

California Building
Standards Commission

Based on the 2009 Uniform Plumbing Code®

Public Domain Mark

EFFECTIVE DATE: January 1, 2011

(For Errata and supplements, See History Note Appendix)

Public Domain: U.S. Court of Appeals, Fifth Circuit, 99-40632

i

Copyright© to 2009 UPC© Held by

INTERNATIONAL ASSOCIATION OF PLUMBING AND MECHANICAL OFFICIALS
5001 East Philadelphia Street
Ontario, California 91761-2816

Copyright© to all California State Provisions
Held By

CALIFORNIA BUILDING STANDARDS COMMISSION
2525 Natomas Park Drive, Suite 130
Sacramento, CA 95833-2936

First Printing, July 1, 2010

Printed in The United States

ii

PREFACE

This document is the 5th of 12 Parts of the official triennial compilation and publication of the adoptions, amendments and repeal of administrative regulations to California Code of Regulations, Title 24, also referred to as the California Building Standards Code. Part 5 is known as the California Plumbing Code and incorporates, by adoption, the 2009 edition of the Uniform Plumbing Code of the International Association of Plumbing and Mechanical Officials with the California amendments.

The California Building Standards Code is published in its entirety every three years by order of the California legislature, with supplements published in intervening years. The California legislature delegated authority to various State agencies, boards, commissions and departments to create building regulations to implement the State′s statutes. These building regulations or standards, have the same force of law, and take effect 180 days after their publication unless otherwise stipulated. The California Building Standards Code applies to occupancies in the State of California as annotated.

A city, county, or city and county may establish more restrictive building standards reasonably necessary because of local climatic, geological or topographical conditions. Findings of the local condition(s) and the adopted local building standard(s) must be filed with the California Building Standards Commission to become effective and may not be effective sooner than the effective date of this edition of California Building Standards Code. Local building standards that were adopted and applicable to previous editions of the California Building Standards Code do not apply to this edition without appropriate adoption and the required filing.

To familiarize yourself with the format of this code, it is suggested that users review the following contents:

Should you find publication (e.g., typographical) errors or inconsistencies in this code or wish to offer comments toward improving its format, please address your comments to:

California Building Standards Commission
2525 Natomas Park Drive, Suite 130
Sacramento, CA 95833-2936
Phone:
(916) 263-0916
FAX: (916) 263-0959
Web Page: www.bsc.ca.gov

iii

ACKNOWLEDGEMENT

The 2010 California Building Standards Code (Code) was developed through the outstanding collaborative efforts of the Department of Housing and Community Development, the Division of State Architect, the Office of the State Fire Marshal, the Office of Statewide Health Planning and Development, the California Energy Commission, and the Building Standards Commission (Commission).

This collaborative effort included the assistance of the Commission’s Code Advisory Committees and many other volunteers that worked tirclessly to assist the Commission in the production of this Code.

Governor Arnold Schwarzenegger

Members of the Building Standards Commission
Acting Secretary Tom Sheehy – Chair

Isam Hasenin –-Vice-Chair

James Barthman
Craig Daley
Susan Dowty
Tony Hoffman
Christina Jamison
Stephen Jensen
Michael Paravagna
Steven Winkel
Richard Sawhill

David Walls – Executive Director

Thomas Morrison
Deputy Executive Director

For questions on California state agency amendments; please refer to the contact list on the following page.

iv

California Code of Regulations, Title 24

California Agency Information Contact List

California Energy Commission
Energy Hotline(800) 772-3300
or (916) 654-5106
Building Efficiency Standards
Appliance Efficiency Standards
Compliance Manual/Forms
 
California State Lands Commission
Marine Oil Terminals(562) 499-6317
California State Library
Resources and Information(916) 654-0261
Government Publication Section(916) 654-0069
Corrections Standards Authority
Local Adult Jail Standards(916) 324-1914
Local Juvenile Facility Standards(916) 324-1914
Department of Consumer Affairs—Acupuncture Board
Office Standards(916) 445-3021
Department of Consumer Affairs—Board of Pharmacy
Pharmacy Standards(916) 574-7900
Department of Consumer Affairs—Bureau of Barbering
and Cosmetology
Barber and Beauty Shop and(916) 574-7570
College Standards(800) 952-5210
Department of Consumer Affairs—Bureau of Home
Furnishings and Thermal Insulation
Insulation Testing Standards(916) 574-2041
Department of Consumer Affairs—Structural Pest
Control Board
Structural Standards(800) 737-8188 (916) 561-8708
Department of Consumer Affairs—Veterinary
Medical Board
Veterinary Hospital Standards(916) 263-2610
Department of Food and Agriculture
Meat & Poultry Packing Plant Standards(916) 654-1447
Dairy Standards(916) 654-1447
Department of Public Health
Organized Camps Standards(916) 449-5661
Public Swimming Pools Standards(916) 449-5693
Asbestos Standards(510) 620-2874
Department of Housing and Community Development
Residential—Hotels, Motels, Apartments Single-Family Dwellings(916) 445-9471
Permanent Structures in Mobilehome and Special Occupancy Parks(916) 445-9471
Factory-Built Housing, Manufactured Housing and Commercial Modular(916) 445-3338
Mobilehomes—Permits & Inspections Northern Region(916) 255-2501
Northern Region(916) 255-2501
Southern Region(951) 782-4420
Employee Housing Standards(916) 445-9471
Department of Water Resources
Gray Water Installations Standards(916) 651-9667
Division of the State Architect—Access Compliance
Access Compliance Standards(916) 445-8100
Division of the State Architect—Structural Safety
Public Schools Standards(916) 445-8100
Essential Services Building Standards(916) 445-8100
Community College Standards(916) 445-8100
Division of the State Architect—State Historical
Building Safety Board
Alternative Building Standards(916) 445-8100
Office of Statewide Health Planning and Development
Hospital Standards(916) 440-8409
Skilled Nursing Facility Standards(916) 440-8409
Clinic Standards(916) 440-8409
Permits(916) 440-8409
Office of the State Fire Marshal
Code Development and Analysis(916) 445-8200
Fire Safety Standards(916) 445-8200
Fireplace Standards(916) 445-8200
Day-Care Centers Standards(916) 445-8200
Exit Standards(916) 445-8200

Revised: February 24, 2010

v

UPC FOREWORD
Not Adopted by The State of California

The advantages of a uniform plumbing code adopted by various local jurisdictions has long been recognized. Disorder in the industry as a result of widely divergent plumbing practices and the use of many different, often conflicting, plumbing codes by local jurisdictions influenced the Western Plumbing Officials Association (now the International Association of Plumbing and Mechanical Officials [IAPMO]) to form a committee of plumbing inspectors, master and journeyman plumbers, and sanitary and mechanical engineers, assisted by public utility companies and the plumbing industry to create a basic plumbing document for general use. The product of this effort, the first edition of the Uniform Plumbing Code® (UPC®) was officially adopted by IAPMO in 1945. The widespread use of this code over the past five decades by jurisdictions throughout the United States and internationally is testament to its merit.

With the publication of the 2003 Edition of the Uniform Plumbing Code®, another significant milestone was reached. For the first time in the history of the United States, a plumbing code was developed through a true consensus process. The 2009 edition represents the most current approaches in the plumbing field and is the second edition developed under the ANSI consensus process. Contributions to the content of the code were made by every segment of the built industry, including such diverse interests as consumers, enforcing authorities, installers/maintainers, insurance, labor, manufacturers, research/standards/testing laboratories, special experts, and users.

The UPC is designed to provide consumers with safe and sanitary plumbing systems while, at the same time, allowing latitude for innovation and new technologies. The public at large is encouraged and invited to participate in IAPMO's open consensus code development process. This code is updated every three years. A code development timeline and other relevant information is available at IAPMO's website at www.iapmo.org.

The Uniform Plumbing Code® is dedicated to all those who, in working to achieve "the ultimate plumbing code," have unselfishly devoted their time, effort, and personal funds to create and maintain this, the finest plumbing code in existence today.

The 2009 Uniform Plumbing Code® is supported by the American Society of Sanitary Engineering (ASSE), the Mechanical Contractors Association of America (MCAA), the Plumbing-Heating-Cooling Contractors National Association (PHCC-NA), the United Association (UA), and the World Plumbing Council (WPC). The presence of these logos, while reflecting support, does not imply any ownership of the copyright to the UPC, which is held exclusively by IAPMO. Further, the logos of these associations indicates the support of IAPMO's open, consensus process being used to develop IAPMO's codes and standards.

The addresses of the organizations are as follows:
ASSE–901 Canterbury Road, Suite A• Westlake, OH 44145-7201 • (440) 835-3040
MCAA– 1385 Piccard Drive • Rockville, MD 20850 • (301) 869-5800
PHCC-NA– PO Box 6808 • Falls Church, VA 22046 • (800) 533-7694
UA – 901 Massachusetts Avenue NW • Washington, DC 20001 • (202) 628-5823
WPC – WPC Secretary • c/o Mechanical Contractors Association of Alberta
•204 2725-12 St. NE Calgary • Alberta T2E 7J2, Canada • +1-40-325-072-37
P.O. Box 2005 • Marmion, Wester Australia 6020 • +61-8-9448-0430

Code changes made to the original amalgamated code are marked in the margins as follows.

An arrow denotes a deletion

A vertical line denotes a change

vi

TABLE OF CONTENTS

CHAPTER 1 ADMINISTRATION – DIVISION I3
1.1.0General3
1.1.1Title3
1.1.2Purpose3
1.1.3Scope3
1.1.4Appendices4
1.1.5Referenced Codes4
1.1.6Non-Building Standards, Orders, and Regulations4
1.1.7Order of Precedence and Use4
1.1.8City, County, or City and County Amendments, Additions or Deletions5
1.1.9Effective Date of this Code5
1.1.10Availability of Codes5
1.1.11Format5
1.1.12Validity5
1.2.0Building Standards Commission5
1.2.2Alternative Materials, Design, and Methods of Construction and Equipment6
1.3.0Corrections Standards Authority6
1.4.0Department of Consumer Affairs6
1.5.0Reserved for California Energy Commission6
1.6.0Department of Food and Agriculture6
1.7.0Department of Public Health6
1.8.0Department of Housing and Community Development (HCD)7
1.8.1Purpose7
1.8.2Authority and Abbreviations7
1.8.3Local Enforcing Agency8
1.8.4Permits, Fees, Applications, and Inspections8
1.8.5Right of Entry for Enforcement9
1.8.6Local Modification by Ordinance or Regulation9
1.8.7Alternate Materials, Designs, Tests, and Methods of Construction10
1.8.8Appeals Board10
1.8.9Unsafe Buildings or Structures11
1.8.10Other Building Regulations11
1.9.0Division of the State Architect12
1.9.1Division of the State Architect–Access Compliance12
1.9.2Division of the State Architect–Structural Safety12
1.10.0Office of Statewide Health Planning and Development12
1.10.1OSHPD 112
1.10.2OSHPD 212
1.10.3OSHPD 313
1.10.4OSHPD 413
1.11.0Office of the State Fire Marshal13
1.11.1SFM-Office of the State Fire Marshal13
1.11.2Duties and Powers of the Enforcing Agency14
1.11.3Construction Documents16
1.11.4Fees16
1.11.5Inspections17
1.11.6Certificate of Occupancy17
1.11.7Temporary Structures and Uses17
1.11.8Service Utilities17
1.11.9Stop Work Order17
1.11.10Unsafe Buildings, Structures, and Equipment17
1.12.0Reserved for the State Librarian17
1.13.0Department of Water Resources (DWR)17
1.14.0Reserved for the State Lands Commission17
DIVISION II–ADMINISTRATION19
101.0Title, Scope, and General19
101.1Title19
101.2Purpose19
101.3Plans Required19
101.4Scope19
101.5Application to Existing Plumbing System19
102.0Organization and Enforcement20
102.1Authority Having Jurisdiction20
102.2Duties and Powers of the Authority Having Jurisdiction20
102.3Violations and Penalties20
103.0Permits and Inspections21
103.1Permits21
103.2Application for Permit21
103.3Permit Issuance21
103.4Fees22
103.5Inspections23
103.6Connection Approval24
103.7Unconstitutional24
103.8Validity24
Table 1-1Plumbing Permit Fees25
CHAPTER 2 DEFINITIONS29
201.0General29
202.0Definition of Terms29
CHAPTER 3 GENERAL REGULATIONS41
301.0Materials - Standards and Alternates41
301.1Minimum Standards41
301.2Alternate Materials and Methods of Construction Equivalency41
301.3Flood Hazard Resistance41
301.4Alternative Engineered Design42
301.5One- and Two-Family Dwellings. [HCD 1 & HCD 2]42
302.0Iron Pipe Size (IPS) Pipe42
303.0Disposal of Liquid Waste42
304.0Connections to Plumbing System Required42
305.0Sewers Required42
306.0Damage to Drainage System or Public Sewer42
307.0Industrial Wastes43
308.0Location43
309.0Improper Location43
310.0Workmanship43
310.4Installation Practices43
311.0Prohibited Fittings and Practices43
311.8Screwed Fittings43
311.12[OSHPD 1, 2 & 4] Services/Systems and Utilities43
312.0Independent Systems43
313.0Protection of Piping, Materials, and Structures44
313.5Protectively Coated Pipe44
313.8Waterproofing of Openings44
313.10Sleeves44
313.12Ratproofing44
314.0Hangers and Supports44
Table 3-1Hanger Rod Sizes45
315.0Trenching, Excavation, and Backfill45
315.3Open Trenches45
316.0Joints and Connections45
316.1Types of Joints45
316.2Special Joints46
316.3Flanged Fixture Connections46
316.4Prohibited Joints and Connections46
317.0Increasers and Reducers46
318.0Food-Handling Establishments46
319.0Test Gauges47
320.0[Not permitted for OSHPD 1, 2, 3 & 4] Medical Gas and Vacuum Systems47
Table 3-2Hangers and Support48
CHAPTER 4 PLUMBING FIXTURES AND FIXTURE FITTINGS51
401.0Materials - General Requirements51
401.1Quality of Fixtures51
401.2Lead51
402.0Water-Conserving Fixtures and Fittings51
402.2Water Closets51
402.3Urinals51
402.4Metered Faucets52
402.5Emergency Safety Showers52
402.6Installation52
403.0Overflows52
404.0Strainers and Connections52
404.1Strainers52
404.2Connections52
405.0Prohibited Fixtures52
405.2Prohibited Urinals52
406.0Special Fixtures and Specialties52
406.1Water and Waste Connections52
406.3Special Use Fixtures53
406.4Zinc Alloy Components53
406.5Drinking Fountains. [HCD 1 & HCD 2]53
407.0Installation53
407.1Cleaning53
407.2Joints53
407.3Securing Fixtures53
407.4Wall-Hung Fixtures53
407.5Setting53
407.6Installations for Persons with Disabilities53
407.7Supply Fittings53
408.0Water Closets53
408.2Water Closet Seats53
408.3Securing Floor-Mounted, Back-Outlet Water Closet Bowls53
408.4Closet Rings (Closet Flanges)53
409.0Urinals54
410.0Flushing Devices for Water Closets and Urinals54
410.1Flushing Devices Required54
410.2Automatic Flushing Tanks54
410.3Flushometer Valves54
410.4Water Supply for Flush Tanks54
410.5Overflows in Flush Tanks54
411.0Floor Drains and Shower Stalls54
411.2Location of Floor Drains54
411.3Food Storage Areas54
411.4Floor Slope54
411.10Location of Valves and Heads56
411.11Water Supply Riser56
412.0Minimum Number of Required Fixtures56
412.1Fixture Count56
412.2Access to Fixtures56
412.3Separate Facilities56
412.4Fixture Requirements for Special Occupancies56
412.5Facilities in Mercantile and Business Occupancies Serving Customers56
412.6Toilet Facilities for Workers56
412.7[CA]Cosmetology56
412.8[CA]Cosmetology Establishments56
412.9[DPH] Commissaries Serving Mobile Food Preparation Units57
412.10[DPH] Employee Lavatories in Food Establishments57
413.0Fixtures and Fixture Fittings for Persons with Disabilities57
413.1Limitation of Hot Water Temperature for Public Lavatories57
414.0Bathtubs and Whirlpool Bathtubs57
414.5Limitation of Hot Water in Bathtubs and Whirlpool Bathtubs57
415.0Installation of Fixture Fittings57
416.0Bidets57
416.1Materials57
416.2Backflow Protection57
416.3Limitation of Water Temperature in Bidets57
417.0Future Fixtures57
418.0Shower and Tub-Shower Combination Control Valves57
Table 4-1Minimum Plumbing Facilities58
Table AOccupant Load Factor62
Table 4-2[OSHPD 1, 2, 3 & 4] Minimum Plumbing Facilities63
CHAPTER 5 WATER HEATERS71
Part I71
501.0General71
502.0Definitions71
502.1Appliance Categorized Vent Diameter/Area71
502.2Chimney71
502.3Chimney, Factory-Built71
502.4Chimney, Masonry71
502.5Chimney, Metal71
502.6Combustible Material71
502.7Direct-Vent Appliances71
502.8Flue Collar71
502.9Gas Vent, Type B71
502.10Gas Vent, Type L71
502.11Indirect-Fired Water Heater71
502.12Vent71
502.13Vent Connector71
502.14Venting System71
502.15Water Heater71
503.0Permits71
Table 5-1First Hour Rating71
504.0Inspection72
504.1Inspection of Chimneys or Vents72
504.2Final Water Heater Inspection72
505.0Water Heater Requirements72
505.1Location72
505.3Clearance72
505.4Pressure-Limiting Devices72
505.5Temperature-Limiting Devices72
505.6Temperature, Pressure, and Vacuum Relief Devices72
506.0Oil-Burning and Other Water Heaters72
506.4Indirect-Fired Water Heaters72
507.0Air for Combustion and Ventilation73
507.1General73
507.2Indoor Combustion Air73
507.3Indoor Opening Size and Location74
507.4Outdoor Combustion Air74
507.5Combination Indoor and Outdoor Combustion Air74
507.6Engineered Installations74
507.7Mechanical Combustion Air Supply74
507.8Louvers, Grilles, and Screens74
507.9Combustion Air Ducts75
508.0Other Water Heater Installation Requirements75
508.2Protection from Seismic Damage75
508.5Relief Valve Discharge75
508.6Added or Converted Appliances75
508.7Types of Gases76
508.8Safety Shutoff Devices for Unlisted LP-Gas Appliance Used Indoors76
508.9Use of Air or Oxygen Under Pressure76
508.10Protection of Gas Appliances from Fumes or Gases Other than Products of Combustion76
508.11Process Air76
508.12Building Structural Members76
508.13Flammable Vapors76
508.14Installation in Residential Garages76
508.15Installation in Commercial Garages76
508.16Installation in Aircraft Hangars77
508.17Gas Appliance Physical Protection77
508.18Venting of Flue Gases77
508.19Extra Device or Attachment77
508.20Adequate Capacity of Piping77
508.21Avoiding Strain on Gas Piping77
508.22Gas Appliance Pressure Regulators77
508.23Venting of Gas Appliance Pressure Regulators77
508.24Bleed Lines for Diaphragm-Type Valves77
508.25Combination of Appliances77
508.26Installation Instructions77
508.27Protection of Outdoor Appliances78
509.0Appliances on Roofs78
509.1General78
509.2Installation of Appliances on Roofs78
509.3Access to Appliances on Roofs78
509.4Appliances in Attics78
510.0Venting of Appliances79
510.1General79
510.2Specification for Venting79
510.3Design and Construction79
510.4Type of Venting System to Be Used80
510.5Masonry, Metal, and Factory-Built Chimneys80
Table 5-2Type of Venting System to Be Used82
510.6Gas Vents83
510.7Single-Wall Metal Pipe84
Table 5-3Clearance for Connectors85
Table 5-4Reduction of Clearances with Specified Forms of Protection86
510.8Through-the-Wall Vent Termination87
510.9Condensation Drain88
510.10Vent Connectors for Category I Gas Utilization Appliances88
Table 5-5Minimum Thickness for Galvanized Steel Vent Connector for Low-Heat Appliances89
Table 5-6Minimum Thickness for Steel Vent Connectors for Medium-Heat Appliances and Commercial and Industrial Incinerators89
510.11Vent Connectors for Category II, Category III, and Category IV Gas Utilization Appliances90
510.12Draft Hoods and Draft Controls90
510.13Manually Operated Dampers91
510.14Automatically Operated Vent Dampers91
510.15Obstructions91
511.0Sizing of Category I Venting Systems91
511.2Additional Requirements to Multiple Appliance Vent Table 5-14 through Table 5-2293
Table 5-7Vent Connector Maximum Length93
512.0Direct-Vent Appliances95
Table 5-8Type B Double-Wall Gas Vent98
Table 5-9Type B Double-Wall Gas Vent101
Table 5-10Masonry Chimney103
Table 5-11Masonry Chimney105
Table 5-12Single-Wall Metal Pipe or Type B Asbestos Cement Vent107
Table 5-13Exterior Masonry Chimney108
Table 5-14Type B Double-Wall Vent109
Table 5-15Type B Double-Wall Vent113
Table 5-16Masonry Chimney115
Table 5-17Masonry Chimney117
Table 5-18Single-Wall Metal Pipe or Type B Asbestos Cement Vent119
Table 5-19Exterior Masonry Chimney119
Table 5-20Exterior Masonry Chimney120
Table 5-21Exterior Masonry Chimney121
Table 5-22Exterior Masonry Chimney122
Part IISizing of Venting Systems Serving Appliances Equipped with Draft Hoods, Category I Appliances, and Appliances Listed for Use with Type B Vents123
G.1Examples Using Single Appliance Venting Tables123
G.2Examples Using Common Venting Tables127
Table G.2.3Masonry Chimney Liner Dimensions with Circular Equivalents128
J.1Example of Combination Indoor and Outdoor Combustion Air Opening130
Table A.9.3.2.1Standard Method Volume, All Appliances131
CHAPTER 6 WATER SUPPLY AND DISTRIBUTION135
601.0Hot and Cold Water Required135
601.2Identification of a Potable and Non-potable Water System135
Table 6-1Minimum Length of Color Field and Size of Letters135
601.5[CA] Schools of Cosmetology and Cosmetological Establishments135
Table 6-2Backflow Prevention Devices, Assemblies, and Methods136
601.6[AGR] Meat and Poultry Processing Plants137
601.7[AGR] Collection Centers and Facilities137
Table 6-3Minimum Airgaps for Water Distribution137
601.8[AGR] Renderers138
601.9[AGR] Horse Meat and Pet Food Establishments138
602.0Unlawful Connections138
603.0Cross-Connection Control138
603.1Approval of Devices or Assemblies138
603.2Backflow Prevention Devices, Assemblies, and Methods139
603.3General Requirements139
603.4Specific Requirements139
604.0Materials141
Table 6-4Materials for Building Supply and Water Distribution Piping and Fittings142
604.11PEX143
604.12Flexible Corrugated Connectors143
604.13PEX-AL-PEX and PE-AL-PE143
604.14Water Heater Connectors144
605.0Valves144
606.0Joints and Connections144
606.1Types of Joints144
606.2Use of Joints145
607.0Gravity Supply Tanks145
608.0Water Pressure, Pressure Regulators, Pressure Relief Valves, and Vacuum Relief Valves145
608.1Inadequate Water Pressure145
608.2Excessive Water Pressure145
608.7Vacuum Relief Valves145
609.0Installation, Testing, Unions, and Location146
609.1Installation146
609.4Testing146
609.5Unions146
609.6Location146
609.8Low-Pressure Cutoff Required on Booster Pumps for Water Distribution Systems146
609.9Disinfection of Potable Water System146
609.10Water Hammer [Not Adopted by HCD]147
610.0Size of Potable Water Piping147
610.8Size of Meter and Building Supply Pipe Using Table 6-6147
610.9Size of Branches148
610.10Sizing for Flushometer Valves148
610.11Sizing Systems for Flushometer Tanks148
610.12Sizing for Velocity148
610.13Exceptions148
Table 6-5Water Supply Fixture Units (WSFU) and Minimum Fixture Branch Pipe Sizes149
Table 6-6Fixture Unit Table for Determining Water Pipe and Meter Sizes150
Table 6-7Flushometer Fixture Units for Water Sizing Using Table 6-5151
Table 6-8Sizing of Residential Water Softeners151
611.0Drinking Water Treatment Units151
611.1Compliance with Standard151
611.2Airgap Discharge151
611.3Connection Tubing151
611.4Sizing of Residential Softeners151
612.0[OSHPD 1, 2, 3 & 4] Domestic Hot-Water Distribution Systems for Health Facilities and Clinics151
Table 6-9[OSHPD 1, 2, 3 & 4] Hot Water Use151
613.0Dialysis Water-Distribution Systems152
614.0Identification of Potable and Non-potable Water Lines152
614.1Uses Not Permitted152
614.4[OSHPD 1] Emergency Water Supply152
CHAPTER 7 SANITARY DRAINAGE155
Part I Drainage Systems155
701.0Materials155
701.3Lead155
701.4Ferrules and Bushings155
Table 7-2(a)Caulking Ferrules155
Table 7-2(b)Soldering Bushings155
702.0Fixture Unit Equivalents156
Table 7-1Materials for Drain, Waste Vent Pipe, and Fittings156
Table 7-4Discharge Capacity In Gallons per Minute (Liters per Second) For Intermittent Flow Only156
703.0Size of Drainage Piping156
Table 7-3Drainage Fixture Unit Values (DFU)157
704.0Fixture Connections (Drainage)158
705.0Joints and Connections158
705.1Types of Joints158
Table 7-5Maximum Unit Loading and Maximum Length of Drainage and Vent Piping158
705.2Use of Joints159
705.3Special Joints159
706.0Changes in Direction of Drainage Flow159
707.0Cleanouts159
Table 7-6Cleanouts160
708.0Grade of Horizontal Drainage Piping160
709.0Gravity Drainage Required160
710.0Drainage of Fixtures Located Below the Next Upstream Manhole or Below the Main Sewer Level160
710.12Grinder Pump Ejector161
710.13Macerating Toilet Systems161
711.0Suds Relief162
712.0Testing162
712.1Media162
712.2Water Test162
712.3Air Test162
Part II Building Sewers162
713.0Sewer Required162
714.0Damage to Public Sewer or Private Sewage Disposal System162
715.0Building Sewer Materials163
716.0Markings163
717.0Size of Building Sewers163
717.1[AGR] Meat and Poultry Processing Plants163
718.0Grade, Support, and Protection of Building Sewers163
719.0Cleanouts163
720.0Sewer and Water Pipes164
721.0Location164
Table 7-7Minimum Horizontal Distance Required From Building Sewer164
Table 7-8Maximum/Minimum Fixture Unit Loading on Building Sewer Piping164
722.0Abandoned Sewers and Sewage Disposal Facilities164
723.0Building Sewer Test165
724.0[AGR] Meat and Poultry Processing Plant Drainage165
725.0[AGR] Collection Center and Facilities Drainage165
726.0[AGR] Drainage and Plumbing, General165
727.0[OSHPD 1] Emergency Sanitary Drainage165
CHAPTER 8 INDIRECT WASTES169
801.0Indirect Wastes169
801.1Airgap or Airbreak Required169
801.2Food and Beverage Handling Establishments169
801.3Bar and Fountain Sink Traps169
801.4Connections from Water Distribution System169
801.5Sterilizers169
801.6Drip or Drainage Outlets169
802.0Approvals169
803.0Indirect Waste Piping169
804.0Indirect Waste Receptors169
805.0Pressure Drainage Connections170
806.0Sterile Equipment170
807.0Appliances170
808.0Cooling Water170
809.0Drinking Fountains170
810.0Steam and Hot Water Drainage Condensers and Sumps170
Table 8-1Pipe Connections in Blowoff Condensers and Sumps171
810.4Strainers171
811.0Chemical Wastes171
812.0Clear Water Wastes171
813.0Swimming Pools171
814.0Condensate Wastes and Control171
814.1Condensate Disposal171
Table 8-2Minimum Condensate Pipe Size171
814.2Size172
814.3Point of Discharge172
CHAPTER 9 VENTS175
901.0General175
901.1Vents Required175
901.2Trap Seal Protection175
902.0Vents Not Required175
903.0Materials175
903.2Use of Copper Tubing175
904.0Size of Vents175
905.0Vent Pipe Grades and Connections176
906.0Vent Termination176
906.6Lead176
906.7Frost or Snow Closure176
907.0Vent Stacks and Relief Vents176
908.0Wet Venting176
908.1Vertical Wet Venting176
908.2Horizontal Wet Venting for Bathroom Groups177
909.0Special Venting for Island Fixtures177
910.0Combination Waste and Vent Systems177
911.0Engineered Vent System177
911.1General177
911.2Minimum Requirements177
CHAPTER 10 TRAPS AND INTERCEPTORS181
1001.0Traps Required181
1002.0Traps Protected by Vent Pipes181
Table 10-1Horizontal Lengths of Trap Arms181
1003.0Traps - Described181
1004.0Traps - Prohibited182
1005.0Trap Seals182
1006.0Floor Drain Traps182
1007.0Trap Seal Protection182
1008.0Building Traps182
1009.0Industrial Interceptors (Clarifiers) and Separators182
1009.1When Required182
1009.2Approval182
1009.3Design182
1009.4Relief Vent182
1009.5Location182
1009.6Maintenance of Interceptors182
1009.7Discharge182
1010.0Slaughterhouses, Packing Establishments, etc182
1010.1[AGR] Meat and Poultry Processing Plants182
1010.2[AGR] Collection Centers and Facilities183
1010.3[AGR] Horse Meat and Pet Food Establishments183
1010.4[AGR] Draining and Plumbing183
1011.0Minimum Requirements for Auto Wash Racks183
1012.0Commercial and Industrial Laundries183
1013.0Bottling Establishments183
1014.0Grease Interceptors183
1014.2Hydromechanical Grease Interceptors184
1014.3Gravity Grease Interceptors184
Table 10-2Hydro-mechanical Interceptor Sizing Using Gravity Flow Rates184
1015.0FOG (Fats, Oils, and Greases) Disposal System185
1015.1Purpose185
1015.2Scope185
1015.3Components, Materials, and Equipment185
1015.4Sizing Application and Installation185
Table 10-3Gravity Grease Interceptor Sizing185
1015.5Performance185
1016.0Sand Interceptors186
1016.1Where Required186
1016.2Construction and Size186
1016.3Separate Use186
1017.0Oil and Flammable Liquid Interceptors186
1017.1Interceptors Required186
1017.2Design of Interceptors186
CHAPTER 11 STORM DRAINAGE189
1101.0General189
1101.1Where Required189
1101.2Storm Water Drainage to Sanitary Sewer Prohibited189
1101.3Material Uses189
1101.4Expansion Joints Required189
1101.5Subsoil Drains189
1101.6Building Subdrains189
1101.7Areaway Drains190
1101.8Window Areaway Drains190
1101.9Filling Stations and Motor Vehicle Washing Establishments190
1101.10Paved Areas190
1101.11Roof Drainage190
1101.12Cleanouts190
1102.0Materials190
1102.1Conductors190
1102.2Leaders191
1102.3Underground Building Storm Drains191
1102.4Building Storm Sewers191
1102.5Subsoil Drains191
1103.0Traps on Storm Drains and Leaders191
1103.1Where Required191
1103.2Where Not Required191
1103.3Trap Size191
1103.4Method of Installation of Combined Sewer191
1104.0Leaders, Conductors, and Connections191
1104.1Improper Use191
1104.2Protection of Leaders191
1104.3Combining Storm with Sanitary Drainage191
1105.0Roof Drains191
1105.1Material191
1105.2Dome or Strainer for General Use191
1105.3Strainers for Flat Decks191
1105.4Roof Drain Flashings191
1106.0Size of Leaders, Conductors, and Storm Drains191
1106.1Vertical Conductors and Leaders191
1106.2Size of Horizontal Storm Drains and Sewers191
1106.3Size of Roof Gutters191
1106.4Side Walls Draining onto a Roof191
1107.0Values for Continuous Flow192
1108.0Controlled-Flow Roof Drainage192
1108.1Application192
Table 11-4Controlled-Flow Maximum Roof Water Depth192
Table 11-5Distance of Scupper Bottoms Above Roof192
1108.2Setback Roofs192
1109.0Testing192
1109.1Testing Required192
1109.2Methods of Testing Storm Drainage Systems193
Table 11-1Sizing Roof Drains, Leaders, and Vertical Rainwater Piping193
Table 11-2Sizing of Horizontal Rainwater Piping194
Table 11-3Size of Gutters196
CHAPTER 12 FUEL PIPING201
1201.0Scope of Gas Piping201
1202.0General201
1203.0Definitions201
1203.1Appliance Fuel Connector201
1203.2Bonding Jumper201
1203.3Fuel Gas201
1203.4Gas Piping201
1203.5Gas-Piping System201
1203.6Grounding Electrode201
1203.7Liquefied Petroleum Gas (LPG) Facilities201
1203.8Provision for Location of Point of Delivery202
1203.9Quick-Disconnect Device202
1203.10Service Piping202
1203.11Transition Gas Riser202
1204.0Inspection202
1205.0Certificate of Inspection202
1206.0Authority to Render Gas Service202
1207.0Authority to Disconnect202
1208.0Temporary Use of Gas202
1209.0Gas-Piping System Design, Materials, and Components203
1209.1Piping Plan203
1209.2Provision for Location of Point of Delivery203
1209.3Interconnections Between Gas-Piping Systems203
1209.4Sizing of Gas-Piping Systems203
Table 12-1Approximate Gas Input for Typical Appliances203
1209.5Acceptable Piping Materials and Joining Methods204
Table 12-2Specifications for Threading Metallic Pipe205
1209.6Gas Meters206
1209.7Gas Pressure Regulators207
1209.8Back-Pressure Protection208
1209.9Low-Pressure Protection208
1209.10Shutoff Valves208
1209.11Expansion and Flexibility208
1210.0Excess Flow Valve208
1211.0Gas Piping Installation208
1211.1Piping Underground208
1211.2Installation of Piping209
Table 12-3Support of Piping210
1211.3Concealed Piping in Buildings210
1211.4Piping in Vertical Chases210
1211.5Maximum Design Operating Pressure210
1211.6Appliance Over Pressure Protection211
1211.7Gas Pipe Turns211
1211.8Drips and Sediment Traps211
1211.9Outlets211
1211.10Branch Pipe Connection212
1211.11Manual Gas Shutoff Valves212
1211.12Prohibited Devices212
1211.13Systems Containing Gas-Air Mixtures Outside the Flammable Range212
1211.14Systems Containing Flammable Gas-Air Mixtures212
1211.15Electrical Bonding and Grounding212
1211.16Electrical Circuits213
1211.17Electrical Connections213
1211.18Earthquake-Actuated Gas Shutoff Valves213
1212.0Appliance Connections to Building Piping213
1212.1Connecting Gas Appliances213
1212.2Suspended Low-Intensity Infrared Tube Heaters213
1212.3Use of Nonmetallic Gas Hose Connectors213
1212.4Connection of Portable and Mobile Industrial Gas Appliance214
1212.5Appliance Shutoff Valves and Connections214
1212.6Quick-Disconnect Devices214
1212.7Sediment Trap214
1212.8Installation of Piping214
1213.0Liquefied Petroleum Gas Facilities and Piping214
1214.0Pressure Testing and Inspection214
1214.1General214
1214.2Test Preparation215
1214.3Test Pressure215
1214.4Detection of Leaks and Defects215
1214.5Piping Systems Leak Check215
1214.6Purging215
Table 12-5Length of Piping Requiring Purging with Inert Gas for Servicing or Modification216
Table 12-6Length of Piping Requiring Purging with Inert Gas Before Placing in Operation216
1215.0Interconnections Between Gas Piping Systems216
1215.1Interconnections Supplying Separate Users216
1215.2Interconnections for Standby Fuels216
1216.0Required Gas Supply216
1217.0Required Gas Piping Size216
1217.1Pipe Sizing Methods216
1217.2Tables for Sizing Gas-Piping Systems217
1217.3Sizing Equations217
Table 12-4Cr and Y for Natural Gas and Undiluted Propane at Standard Conditions217
Table 12-8Schedule 40 Metallic Pipe220
Table 12-9Schedule 40 Metallic Pipe221
Table 12-10Schedule 40 Metallic Pipe222
Table 12-11Schedule 40 Metallic Pipe223
Table 12-12Semi-Rigid Copper Tubing224
Table 12-13Semi-Rigid Copper Tubing225
Table 12-14Semi-Rigid Copper Tubing226
Table 12-15Semi-Rigid Copper Tubing227
Table 12-16Semi-Rigid Copper Tubing228
Table 12-17Semi-Rigid Copper Tubing229
Table 12-18Semi-Rigid Copper Tubing230
Table 12-19Corrugated Stainless Steel Tubing (CSST)231
Table 12-20Corrugated Stainless Steel Tubing (CSST)231
Table 12-21Corrugated Stainless Steel Tubing (CSST)232
Table 12-22Corrugated Stainless Steel Tubing (CSST)232
Table 12-23Corrugated Stainless Steel Tubing (CSST)233
Table 12-24Polyethylene Plastic Pipe233
Table 12-25Polyethylene Plastic Pipe234
Table 12-26Polyethylene Plastic Pipe235
Table 12-27Polyethylene Plastic Tubing236
Table 12-28Polyethylene Plastic Tubing236
Table 12-29Schedule 40 Metallic Pipe237
Table 12-30Schedule 40 Metallic Pipe238
Table 12-31Schedule 40 Metallic Pipe239
Table 12-32Schedule 40 Metallic Pipe240
Table 12-33Semi-Rigid Copper Tubing241
Table 12-34Semi-Rigid Copper Tubing242
Table 12-35Semi-Rigid Copper Tubing243
Table 12-36Corrugated Stainless Steel Tubing (CSST)244
Table 12-37Corrugated Stainless Steel Tubing (CSST)244
Table 12-38Corrugated Stainless Steel Tubing (CSST)245
Table 12-39Polyethylene Plastic Pipe245
Table 12-40Polyethylene Plastic Pipe246
Table 12-41Polyethylene Plastic Tubing247
CHAPTER 13 HEALTH CARE FACILITIES AND MEDICAL GAS AND VACUUM SYSTEMS251
Part I Special Requirements for Health Care Facilities251
1301.0Application251
1302.0Medical Gas and Vacuum Piping Systems-Installation Requirements251
1303.0Protrusions from Walls251
1304.0Psychiatric Patient Rooms251
1305.0Locations for Ice Storage251
1306.0Sterilizers251
1306.1General251
1306.2Indirect Waste Connections251
1307.0Vapor Vents and Stacks for Sterilizers251
1307.1General251
1308.0Aspirators252
Part II Medical Gas and Vacuum Systems252
1309.0Application252
1310.0Definitions252
1310.1Building Supply252
1310.2Critical Care Area252
1310.3General Care Areas252
1310.4Manifold252
1310.5Medical Air252
1310.6Medical Gas252
1310.7Medical Gas System252
1310.8Medical Vacuum System252
1310.9Nitrogen, NF (Oil-Free, Dry) (Nitrogen for Brazing and Testing)252
1310.10Patient Care Area252
1310.11Purge, Flow252
1310.12Purge, System252
1310.13SCFM253
1310.14Special Hazard Area253
1310.15Station Inlet253
1310.16Station Outlet253
1310.17Use Point253
1310.18User Outlet253
1310.19Vacuum System – Level 1253
1310.20Valve, Isolation253
1310.21Valve, Riser253
1310.22Valve, Service253
1310.23Valve, Source253
1310.24Valve, Zone253
1310.25Waste Anesthetic Gas Disposal253
1311.0General Requirements253
1311.1Oxygen Compatibility253
1312.0Plan Review254
1313.0System Performance254
1313.1Required Operating Pressures254
1313.2Minimum Flow Rates254
1313.3Minimum Station Outlets/Inlets254
1314.0Required Pipe Sizing254
Table 13-1Standard Designation Colors and Operating Pressures for Gas and Vacuum Systems255
Table 13-2Minimum Flow Rates255
Table 13-3Minimum Outlets/Inlets per Station256
Table 13-4System Sizing - Flow Requirements for Station Inlet/Outlet256
1315.0Workmanship256
1316.0Materials256
Table 13-5Outlet Rating for Vacuum Piping Systems257
Table 13-6Size of Gas/Vacuum Piping257
1317.0Cleaning for Medical Gas Piping Systems258
1318.0Installation of Piping259
Table 13-7Maximum Pipe Support Spacing260
1319.0Joints260
1320.0Valves - Requirements, Locations, and Labeling262
1320.1General Requirements262
1320.4Source Valve262
1320.5Main Valve262
1320.6Riser Valve262
1320.7Zone Valve262
1320.8Service Valves263
1321.0Pressure-Regulating Equipment263
1321.3Pressure Gauges263
1322.0Station Outlets/Inlets263
1323.0Labeling and Identification263
1324.0Alarms264
1325.0Medical Air System264
1325.6Medical Air Receivers265
1326.0Medical Vacuum Pump System265
1327.0Testing and Inspection266
1327.3Advance Notice266
1327.4Responsibility266
1327.5Testing266
1327.6Retesting266
1327.7Initial Pressure Test – Piped Gas Systems266
1327.8Cross-Connection Test – Piped Gas Systems266
1327.9Final Testing Standing Pressure Test – Piped Gas Systems267
1327.10Initial Pressure Test – Piped Vacuum Systems267
1327.11Standing Pressure Test – Piped Vacuum Systems267
1327.12Corrections268
1327.13Approval268
1327.14Covering or Use268
1327.15Uncovering268
1328.0System Certification268
CHAPTER 14 REFERENCED STANDARDS271
Table 14-1Standards for Materials, Equipment, Joints, and Connections271
Abbreviations in Table 14-1291
CHAPTER 15 FIRESTOP PROTECTION295
1501.0General Requirements295
1501.1Applicability295
1502.0Plans and Specifications295
1503.0Installation295
1504.0Definitions295
1504.1Penetration Firestop System295
1504.2F Rating295
1504.3T Rating295
1505.0Combustible Piping Installations295
1505.5Insulation and Coverings295
1505.6Sleeves295
1506.0Non-Combustible Piping Installations295
1506.6Sleeves296
1506.7Insulation and Coverings296
1507.0Required Inspection296
1507.1General296
CHAPTER 16 RESERVED297
CHAPTER 16A NON-POTABLE WATER REUSE SYSTEMS301
Part I [HCD 1]301
1601A.0Graywater Systems - General301
1602A.0Definitions301
1603A.0Permit302
1603A.1System Requirements302
Table 1603A.1.4Construction Permit Requirements303
1604A.0Drawings and Specifications303
1604A.1Groundwater Depth303
1605A.0Inspection and Testing303
1606A.0Procedure for Estimating Graywater Discharge303
1607A.0Required Area of Irrigation or Disposal Fields303
1608A.0Determination of Maximum Absorption Capacity304
1609A.0Tank Construction304
1610A.0Graywater Systems304
1610A.1Pipe Materials304
1610A.2Identification304
1610A.3Valves304
1611A.0Irrigation, Disposal Field, and Mulch Basin Construction304
1611A.1Mulch Basin304
1611A.2Irrigation Field304
1611A.3Disposal Field305
1612A.0Special Provisions305
1612A.1Indoor Use of Treated Graywater305
Table 16A-1Location of Graywater System306
Table 16A-2Design Criteria of Six Typical Soils306
Table 16A-3Subsurface Drip Design Criteria of Six Typical Soils306
Part II [DWR]307
1613A.0Recycled Water Systems – General307
1614A.0Definitions307
1615A.0Permit307
1616A.0Drawings and Specifications307
1617A.0Pipe Material/Pipe Identification307
1617A.1Pipe Materials307
1617A.2Color and Information307
1618A.0Installation307
1619A.0Signs307
1620A.0Inspection and Testing308
1621A.0Sizing309
APPENDICES TABLE OF CONTENTS311
Appendix ARecommended Rules for Sizing the Water Supply System315
Appendix BExplanatory Notes on Combination Waste and Vent Systems333
Appendix DSizing Storm Water Drainage Systems337
Appendix GGraywater Systems347
Appendix IInstallation Standards Table of Content359
Appendix KPrivate Sewage Disposal Systems457
Appendix LAlternate Plumbing Systems469
USEFUL TABLES475
INDEX483
HISTORY NOTE APPENDIX504

HOW TO DISTINGUISH MODEL CODE LANGUAGE FROM CALIFORNIA AMENDMENTS

To distinguish between model code language and incorporated California amendments, including exclusive California standards, California amendments will appear in italics. Symbols indicate the status of code changes as follows:

[SFM] This symbol following a section leader identifies which state agency(s) have amended a section of model code. For a complete listing of state agencies, refer to the Application Sections within Chapter 1, Division I.

This symbol in the margin indicates that a change has been made to a California amendment.

This symbol in the margin indicates deletion of California language.

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Image

RELATED PUBLICATIONS AND SERVICES

The Documents Listed are Not by this Reference Adopted by The State of California.

IAPMO provides a variety of other products which are useful for inspectors, building officials, architects, engineers, manufacturers, contractors, plumbers, and apprentices.

IAPMO Headquarters Directory
5001 East Philadelphia Street, Ontario, California 91761-2816
Publication Order Desk Phone: 800-85-IAPMO
Publication Toll Free Fax: 877-85-CODES
E-mail: publications@iapmo.org
Website: www.iapmo.org
Free Code Question Answers & Analysis: 800-201-0335

Uniform Plumbing Code – 2009 Edition:

The Uniform Plumbing Code is the most widely adopted plumbing code in the world. The 2009 edition contains complete "turnkey" requirements for the installation and maintenance of plumbing systems, all in one easy to use book.

Uniform Plumbing Code Illustrated Training Manual:

The UPC Illustrated Training Manual is an excellent reference for anyone involved in the plumbing industry. It contains an extensive definitions section and several hundred comprehensive technical diagrams and illustrations. It serves as a textbook, and it also is useful as a valuable tool for explaining the intent and use of the Code.

Uniform Plumbing Code Study Guide:

This book is the perfect complement to the UPC Illustrated Training Manual. Alone, it constitutes a complete self-study course for learning the UPC. It has hundreds of questions, general practice exams, and plumbing math, pipe sizing exercises and fitting identification. A big help in getting you ready for a certification exam!

Uniform Plumbing Code Answer & Analysis Manual:

This increasing popular manual is the result of ongoing work by IAPMO's Answers & Analysis Committee. It contains hundreds of questions and answers that encompass three editions of the UPC. Many of these questions arise in the daily administration of the code.

Cumulative Analysis of Uniform Plumbing Code Changes:

An excellent reference for learning and understanding plumbing code changes and identifies code changes between editions. It is a useful tool for preparing code change proposals.

Uniform Mechanical Code – 2009 Edition:

The Uniform Mechanical Code contains complete requirements for the installation and maintenance of heating, ventilating, cooking and refrigeration systems.

Uniform Mechanical Code Illustrated Training Manual:

Contains technical diagrams and illustrations that demonstrate the intent and use of the UMC. A great reference for everyone involved in Mechanical HVACR design and installation.

Uniform Mechanical Code Study Guide:

The Study Guide is a complete self-study course for learning the UMC. A big help in getting ready for a certification exam! This book is the perfect complement to the UMC Illustrated Training Manual.

xxi

Uniform Mechanical Code Answer & Analysis Manual:

This increasing popular manual is the result of ongoing work by IAPMO's Answers & Analysis Committee. It contains hundreds of questions and answers that encompass three editions of the UMC. Many of these questions arise in the daily administration of the code.

Cumulative Analysis of Uniform Mechanical Code Changes:

The UMC Cumulative Analysis is a very useful tool in targeting the latest changes between editions of the code. It is an excellent guide for anyone proposing a UMC change.

Uniform Swimming Pool, Spa, and Hot Tub Code – 2009 Edition:

The Uniform Swimming Pool, Spa and Hot Tub Code contains complete and current requirements for the erection, installation, alteration, repair, relocation, replacement, addition to and use or maintenance of these systems.

Uniform Solar Energy Code – 2009 Edition:

The Uniform Solar Energy Code is a unique document that provides a complete set of regulations and guidelines that cover both plumbing and mechanical systems in one "turnkey" package. The code is ideal for use by inspectors, jurisdictions and the installation industry.

Drain Waste and Vent Calculator:

A slide-rule style calculator provides quick and simple access to the fixture unit and sizing tables of Chapter 7 of the UPC.

Water Sizing Calculator:

Sizing water systems becomes a much simpler task with the use of this handy slide-rule style calculator.

Natural Gas Pipe Sizing Calculator:

This Natural Gas Pipe Sizing Calculator is presented in an easy to use and read slide-rule format. Designed for systems with a supply pressure of six to eight inches of water column, all pipe capacities are given in cubic feet per hour.

Trailer Standards:

IAPMO has developed a number of standards for specialty products used in manufactured homes and recreational vehicles. These standards are available individually, or they may be purchased as a set.

Directory of Listed Plumbing Products:

The IAPMO Listing Program was primarily created to benefit the building and plumbing officials that the products installed meet the appropriate standards and code. For a product to continue to be listed, unannounced inspections of the manufacturing facilities verify continued compliance. This directory contains information on several thousand IAPMO-listed plumbing products and is updated annually.

Education and Training Seminars:

IAPMO specializes in conducting training and education, including fulfilling continuing education requirements, on the UPC and UMC as well as all of the most commonly utilized codes in the Construction Trades. Special seminars on industry or code subjects are expeditiously created and delivered upon request. Please call to obtain the seminar schedule or to arrange for a custom special seminar.

Backflow Prevention Institute – IAPMO

The IAPMO Backflow Prevention Institute provides professional education and training for the control of hazards to our water supply and is dedicated to water-system safety worldwide. The Institute provides training in backflow prevention and cross-connection control. This program includes backflow preventers, testers, repairers, cross-connection control surveyors, program administrators and fire-sprinkler backflow preventer testers. Each of these courses provides compliance certification to American Society of Sanitary Engineering (ASSE) Series 5000 Professional Qualification Standards.

xxii

Backflow Prevention Reference Manual:

This unique 300-page manual contains full-color illustrations and sections relating to real-world installations, backflow prevention, testing cross-connection control, repair and inspections. The manual is an excellent textbook and a reference the inspectors in every jurisdiction should have access too. It is also an important resource for system designers, urban planners and utility companies – professionals on both sides of the water meter.

Drinking Water & Backflow Prevention Magazine:

A monthly subscription to Drinking Water & Backflow Prevention Magazine provides current and valuable information regarding this critical public health topic. Subjects range from actual incident reporting, application of the newest technology, and general interest articles including fire systems, irrigation systems, and security as well as installation, inspection and repair tips.

Backflow Prevention Tech-Wheel:

Find quick answers to your backflow preventer questions! The Backflow Tech-Wheel contains a wealth of information in a graphic, quick reference format. One side delivers solutions to device application questions; the other a troubleshooting guides offering solutions to backflow problems.

ANSI Z 124 Standards:

These standards are written to specifically address a variety of plastic plumbing fixtures and components. They are available individually, or may be grouped for quantity discounts.

IAPMO Installation Standards:

IAPMO standards committees have formulated installation standards for a wide variety of commonly used plumbing materials and systems. The IAPMO installation standards are included after the text of the Uniform Plumbing Code, or can be purchased separately.

Material and Property Standards:

IAPMO does not generally develop material and property standards, but when a need exists the Association will take a leadership role by filling the void. They are available, are subject to amendments and are withdrawn when recognized consensus standards are formulated.

OFFICIAL Magazine:

IAPMO's bimonthly publication features informative articles related to plumbing and Mechanical HVACR installations, award winning general interest features, technical columns and industry updates. Subscriptions are available and all IAPMO members receive a free copy of every issue!

Membership in IAPMO:

IAPMO membership is open to all interested persons. Membership categories include Student, Individual, Senior, Organizational and Governmental. Member benefits include discounted prices on IAPMO publications, a subscription to Official magazine, and numerous educational and training opportunities.

HOW TO CONTACT IAPMO

Mailing Address: 5001 East Philadelphia Street, Ontario, California 91761-2816
Main Number: 909-472-4100 • Publication Orders: 800-85-IAPMO •Publication Fax: 877-85-CODES
Website: www.iapmo.org •Office Hours: Monday – Friday, 8am – 5pm Pacific Time

CALIFORNIA MATRIX ADOPTION TABLES

Format of the Matrix Adoption Tables

The matrix adoption tables, which follow, show the user which state agencies have adopted and/or amended given sections of model code for applications within their respective authorities. See Chapter 1, See Section 1.2.0 through 1.14.0, for building application and enforcement responsibilities.

The side headings identify the scope of the state agencies’ adoption as follows:

Adopt the Entire UPC Chapter without state amendments

If there is an "X" under a particular state agency's acronym on this row, this means that particular state agency has adopted the entire model code chapter without any state amendments.

Example:

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE
CHAPTER 1 - ADMINISTRATION

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE

Adopt the Entire UPC chapter as amended (amendments listed below)

If there is an "X" under a particular state agency's acronym on this row, it means that particular state agency has adopted the entire model code chapter, with state amendments.

Each state-amended section that the agency has added to that particular chapter is listed. There will be an "X" in the column, by that particular section, under the agency′s acronym, as well as an "X" by each section that the agency has adopted.

Example:

Adopts only those section which are listed below:

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE
CHAPTER 1 - ADMINISTRATION

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE

xxiv

If there is an "X" under a particular state agency′s acronym on this row, it means that particular state agency is adopting only specific model code or state-amended sections within this chapter. There will be an "X" in the column under the agency′s acronym, as well as an "X" by each section that the agency has adopted.

Example:

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE
CHAPTER 1 - ADMINISTRATION

CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE

Legend of Abbreviations of Adopting State Agencies
BSC California Building Standards Commission
SFM Office of the State Fire Marshal
HCD Department of Housing and Community Development
DSA-AC Division of the State Architect - Access Compliance
DSA-SS Division of the State Architect - Structural Safety
DSA-SS/CC Division of the State Architect - Community Colleges
OSHPD Office of Statewide Health Planning and Development
CSA Corrections Standards Authority
DPH Department of Public Health
AGR Department of Food and Agriculture
DWR Department of Water Resources
CA Department of Consumer Affairs

xxv

xxvi

CALIFORNIA PLUMBING CODE—MATRIX ADOPTION TABLE
CHAPTER 1–ADMINISTRATION
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
Adopt Entire Chapter                 
Adopt Entire Chapter as amended (amended sections listed below)                 
Adopt only those sections that are listed belowXXXXXXXXXXXXXXXXX
Chapter/Section
Division 1— California Administration                 
1.1.0-1.1.7XXXXX XXXXXXXXXXX
1.1.8XXXXX   XXXXXXXXX
1.1.9-1.1.11XXXXX XXXXXXXXXXX
1.1.12XXXXX   XXXXXXXXX
1.2.0X                
1.3.0            X    
1.4.0                X
1.6.0              X  
1.7.0             X   
1.8.0  XXX            
1.9.0     X           
1.9.1     X           
1.9.2.1      X          
1.9.2.2       X         
1.10.1        X        
1.10.2         X       
1.10.3          X      
1.10.4           X     
1.11.0 X               
1.13.0               X 
Division II - Administration                  
101.0 - 103.1.1        XXXX     
103.1.2 and subsections  XX    XXXX     
103.1.1 - 103.8        XXXX     

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2

CHAPTER 1
ADMINISTRATION

DIVISION 1
CALIFORNIA ADMINISTRATION

1.1.0 General.

1.1.1 Title. These regulations shall be known as the California Plumbing Code, may be cited as such and will be referred to herein as “this code.” The California Plumbing Code is Part 5 of twelve parts of the official compilation and publication of the adoption, amendment, and repeal of plumbing regulations to the California Code of Regulations, Title 24, also referred to as the California Building Standards Code. This part incorporates by adoption the 2009 Uniform Plumbing Code of the International Association of Plumbing and Mechanical Officials with necessary California amendments.

1.1.2 Purpose. The purpose of this code is to establish the minimum requirements to safeguard the public health, safety and general welfare through structural strength, means of egress facilities, stability, access to persons with disabilities, sanitation, adequate lighting and ventilation, and energy conservation; safety to life and property from fire and other hazards attributed to the built environment; and to provide safety to fire fighters and emergency responders during emergency operations.

1.1.3 Scope. The provisions of this code shall apply to the construction, alteration, movement, enlargement, replacement, repair, equipment, use and occupancy, location, maintenance, removal, and demolition of every building or structure or any appurtenances connected or attached to such buildings or structures throughout the State of California.

1.1.3.1 Non-State-Regulated Buildings, Structures, and Applications. Except as modified by local ordinance pursuant to Section 1.1.8, the following standards in the California Code of Regulations, Title 24, Parts 2, 2.5, 3, 4, 5, 6, 9, 10 and 11 shall apply to all occupancies and applications not regulated by a state agency.

1.1.3.2 State-Regulated Buildings, Structures, and Applications. The model code, state amendments to the model code, and/or state amendments where there are no relevant model code provisions shall apply to the following buildings, structures, and applications regulated by state agencies as referenced in the Matrix Adoption Tables and as specified in Section 1.2.0 through 1.14.0, except where modified by local ordinance pursuant to Section 1.1.8. When adopted by a state agency, the provisions of this code shall be enforced by the appropriate enforcing agency, but only to the extent of authority granted to such agency by the state Legislature.

Note: See Preface to distinguish the model code provisions from the California provisions.

  1. State-owned buildings, including buildings constructed by the Trustees of the California State University, and to the extent permitted by California laws, buildings designed and constructed by the Regents of the University of California, and regulated by the Building Standards Commission. See Section 1.2.0 for additional scope provisions.
  2. Local detention facilities regulated by the Corrections Standards Authority. See Section 1.3.0 for additional scope provisions.
  3. Barbering, cosmetology or electrolysis establishments, acupuncture offices, pharmacies, veterinary facilities, and structural pest control locations regulated by the Department of Consumer Affairs. See Section 1.4.0 for additional scope provisions.
  4. Reserved for the California Energy Commission. See Section 1.5.0 for additional scope provisions.
  5. Dairies and places of meat inspection regulated by the Department of Food and Agriculture. See Section 1.6.0 for additional scope provisions.
  6. Organized camps, laboratory animal quarters, public swimming pools, radiation protection, commissaries serving mobile food preparation vehicles, and wild animal quarantine facilities regulated by the Department of Public Health. See Section 1.7.0 for additional scope provisions.
  7. Hotel, motels, lodging houses, apartment houses, dwellings, dormitories, condominiums, shelters for homeless persons, congregate residences, employee housing, factory-built housing, and other types of dwellings containing sleeping accommodations with or without common toilets or cooking facilities. See Section 1.8.2.1.1 for additional scope provisions.
  8. Accommodations for persons with disabilities in buildings containing newly constructed covered multifamily dwellings, new common use spaces serving existing covered multifamily dwellings, additions to existing buildings where the addition alone meets the definition of “COVERED MULTIFAMILY DWELLINGS,” and common-use spaces serving covered multifamily dwellings which are regulated by the Department of Housing and Community Development. See Section 1.8.2.1.2 for additional scope provisions.
  9. Permanent buildings and permanent accessory buildings or structures constructed within mobilehome parks and special occupancy parks regulated by the Department of Housing and Community Development. See Section 1.8.2.1.3 for additional scope provisions. 3
  10. Accommodations for persons with disabilities regulated by the Division of the State Architect. See Section 1.9.1 for additional scope provisions.
  11. Public elementary and secondary schools, community college buildings, and state-owned or state-leased essential service buildings regulated by the Division of the State Architect. See Section 1.9.2 for additional scope provisions.
  12. Reserved for the State Historical Building Safety Board with the Division of the State Architect. See Section 1.9.3 for additional scope provisions.
  13. General acute care hospitals, acute psychiatric hospitals, skilled nursing and/or intermediate care facilities, clinics licensed by the Department of Public Health, and correctional treatment centers regulated by the Office of Statewide Health Planning and Development. See Section 1.10.0 for additional scope provisions.
  14. Applications regulated by the Office of State Fire Marshal include but are not limited to following in accordance with Section 1.11.0:
    1. Buildings or structures used or intended for use as an:
      1. Asylum, jail, prison.
      2. Mental hospital, hospital, home for the elderly, children's nursery, children's home or institution, school or any similar occupancy of any capacity.
      3. Theater, dancehall, skating rink, auditorium, assembly hall, meeting hall, nightclub, fair building, or similar place of assemblage where 50 or more persons may gather together in a building, room or structure for the purpose of amusement, entertainment, instruction, deliberation, worship, drinking or dining, awaiting transportation, or education.
      4. Small family day care homes, large family day-care homes, residential facilities and residential facilities for the elderly, residential care facilities.
      5. State institutions or other state-owned or state-occupied buildings.
      6. High rise structures.
      7. Motion picture production studios.
      8. Organized camps.
      9. Residential structures.
    2. Tents, awnings or other fabric enclosures used in connection with any occupancy.
    3. Fire alarm devices, equipment and systems in connection with any occupancy.
    4. Hazardous materials, flammable and combustible liquids.
    5. Public school automatic fire detection, alarm and sprinkler systems.
    6. Wildland-urban interface fire areas.
  15. Public libraries constructed and renovated using funds from the California Library Construction and Renovation Bond Act of 1988 and regulated by the State Librarian. See Section 1.12.0 for additional scope provisions.
  16. Graywater systems regulated by the Department of Water Resources. See Section 1.13.0 for additional scope provisions.
  17. For applications listed in Section 1.9.1 regulated by the Division of the State Architect – Access Compliance, outdoor environments and uses shall be classified according to accessibility uses described in Chapter 11A, 11B, and 11C.
  18. Marine Oil Terminals regulated by the California State Lands Commission. See Section 1.14.0 for additional scope provisions.

1.1.4 Appendices. Provisions contained in the appendices of this code shall not apply unless specifically adopted by a state agency or adopted by a local enforcing agency in compliance with Health and Safety Code Section 18901 et seq. for Building Standards Law, and Health and Safety Code Section 17950 for State Housing Law and Health and Safety Code Section 13869.7 for Fire Protection Districts. See Section 1.1.8 of this code.

1.1.5 Referenced Codes. The codes, standards and publications adopted and set forth in this code, including other codes, standards and publications referred to therein are, by title and date of publication, hereby adopted as standard reference documents of this code. When this code does not specifically cover any subject related to building design and construction, recognized architectural or engineering practices shall be employed. The National Fire Codes, standards, and the Fire Protection Handbook of the National Fire Protection Association are permitted to be used as authoritative guides in determining recognized fire prevention engineering practices.

1.1.6 Non-Building Standards, Orders, and Regulations. Requirements contained in the Uniform Plumbing Code, or in any other referenced standard, code or document, which are not building standards as defined in Health and Safety Code Section 18909 shall not be construed as part of the provisions of this code. For nonbuilding standards, orders, and regulations, see other titles of the California Code of Regulations.

1.1.7 Order of Precedence and Use.

1.1.7.1 Differences. In the event of any differences between these building standards and the standard reference documents, the text of these building standards shall govern.

1.1.7.2 Specific Provisions. Where a specific provision varies from a general provision, the specific provision shall apply.

1.1.7.3 Conflicts. When the requirements of this code conflict with the requirements of any other part of the California Building Standards Code, Title 24, the most restrictive requirements shall prevail.

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1.1.8 City, County, or City and County Amendments, Additions or Deletions. The provisions of this code do not limit the authority of city, county, or city and county governments to establish more restrictive and reasonably necessary differences to the provisions contained in this code pursuant to complying with Section 1.1.8.1. The effective date of amendments, additions, or deletions to this code by city, county, or city and county field pursuant to Section 1.1.8.1 shall be the date filed. However, in no case shall the amendments, additions or deletions to this code be effective any sooner than the effective date of this code.

Local modifications shall comply with Health and Safety Code Section 18941.5 for Building Standards Law, Health and Safety Code Section 17958 for State Housing Law or Health and Safety Code Section 13869.7 for Fire Protection Districts.

1.1.8.1. Findings and Filings.

  1. The city, county, or city and county shall make express findings for each amendment, addition or deletion based upon climatic, topographical, or geological conditions.

    Exception: Hazardous building ordinances and programs mitigating unreinforced masonry buildings.

  2. The city, county, or city and county shall file the amendments, additions or deletions expressly marked and identified as to the applicable findings. Cities, counties, cities and counties, and fire departments shall file the amendments, additions or deletions, and the findings with the California Building Standards Commission at 2525 Natomas Park Drive, Suite 130, Sacramento, CA 95833.
  3. Findings prepared by fire protection districts shall be ratified by the local city, county, or city and county and filed with the California Department of Housing and Community Development, Division of Codes and Standards, P.O. Box 1407, Sacramento, CA 95812-1407 or 1800 3rd Street, Room 260, Sacramento, CA 95811.

1.1.9 Effective Date of this Code. Only those standards approved by the California Building Standards Commission that are effective at the time an application for building permit is submitted shall apply to the plans and specifications for, and to the construction performed under, that permit. For the effective dates of the provisions contained in this code, see the History Note page of this code.

1.1.10 Availability of Codes. At least one complete copy each of Titles 8, 19, 20, 24, and 25 with all revisions shall be maintained in the office of the building official responsible for the administration and enforcement of this code. Each state department concerned and each city, county, or city and county shall have an up-to-date copy of the code available for public inspection. See Health and Safety Code Section 18942 (d)(1) and (2).

1.1.11 Format. This part fundamentally adopts the Uniform Plumbing Code by reference on a chapter-by-chapter basis. Such adoption is reflected in the Matrix Adoption Table of each chapter of this part. When the Matrix Adoption Tables make no reference to a specific chapter of the Uniform Plumbing Code, such chapter of the Uniform Plumbing Code is not adopted as a portion of this code.

1.1.12 Validity. If any chapter, section, subsection, sentence, clause or phrase of this code is for any reason held to be unconstitutional, contrary to statute, exceeding the authority of the state as stipulated by statutes or otherwise inoperative, such decision shall not affect the validity of the remaining portion of this code.

1.2.0 Building Standards Commission.

1.2.1 Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

  1. State Buildings for All Occupancies.
    Application – State buildings (all occupancies), including buildings constructed by the Trustees of the California State University and the Regents of the University of California where no state agency has the authority to adopt building standards applicable to such buildings.
    Enforcing Agency – State or local agency specified by the applicable provisions of law.
    Authority Cited – Health and Safety Code Section 18934.5.
    Reference– Health and Safety Code, Division 13, Part 2.5, commencing with Section 18901.
  2. University of California, California State Universities, and California Community Colleges.
    Application– Standards for lighting for parking lots and primary campus walkways at the University of California, California State Universities, and California Community Colleges.
    Enforcing Agency– State or local agency specified by the applicable provisions of law.
    Authority Cited– Government Code Section 14617.
    Reference– Government Code Section 14617.
  3. Existing State-Owned Buildings, including those owned by the University of California and by the California State University– Building seismic retrofit standards including abating falling hazards of structural and nonstructural components and strengthening of building structures. See also Division of the State Architect.
    Enforcing Agency– State or local agency specified by the applicable provisions of law.
    Authority Cited– Government Code Section 16600.
    References– Government Code Sections 16600 through 16604.
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  4. Unreinforced Masonry Bearing Wall Buildings.
    Application – Minimum seismic strengthening standards for buildings specified in Appendix Chapter 1 of the California Code for Building Conservation, except for buildings subject to building standards adopted pursuant to Part 1.5 (commencing with Section 17910).
    Enforcing Agency – State or local agency specified by the applicable provisions of law.
    Authority Cited – Health and Safety Code Section 18934.6.
    References – Health and Safety Code Sections 18901 through 18949.

1.2.2 Alternative Materials, Design, and Methods of Construction and Equipment.

The provisions of this code are not intended to prevent the installation of any material or to prohibit any design or method of construction not specifically prescribed by this code, provided that any such alternative has been approved. An alternative material, design or method of construction shall be approved where the building official finds that the proposed design is satisfactory and complies with the intent of the provisions of this code, and that the material, method or work offered is, for the purpose intended, at least the equivalent of that prescribed in this code in quality, strength, effectiveness, fire resistance, durability, and safety.

1.2.2.1 Research Reports. Supporting data, where necessary to assist in the approval of materials or assemblies not specifically provided for in this code, shall consist of valid research reports from approved sources.

1.2.2.2 Tests. Whenever there is insufficient evidence of compliance with the provisions of this code, or evidence that a material or method does not conform to the requirements of this code, or in order to substantiate claims for alternative materials or methods, the building official shall have the authority to require tests as evidence of compliance to be made at no expense to the jurisdiction. Test methods shall be as specified in this code or by other recognzied test standards. In the absence of recognized and accepted test methods, the buildings official shall approve the testing procedures. Tests shall be performed by an approved agency. Reports of such tests shall be retained by the building official for the period required for retention of public records.

1.3.0 Corrections Standards Authority.

1.3.1 Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

Application – Local detention facilities.

Enforcing Agency – Corrections Standards Authority.

Authority Cited – Penal Code Section 6030; Welfare and Institutions Code Sections 210 and 885.

References – Penal Code Section 6030; Welfare and Institutions Code Sections 210 and 885.

1.4.0 Department of Consumer Affairs.

1.4.1 Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

Board of Barbering and Cosmetology.

Application – Any establishment or mobile unit where barbering, cosmetology, or electrolysis is being performed.

Enforcing Agency – State or local agency specified by applicable provisions of law.

Authority Cited – Business and Professions Code Section 7312.

References – Business and Professions Code Sections 7303, 7303.1, 7312, and 7313.

1.5.0 Reserved for California Energy Commission.

1.6.0 Department of Food and Agriculture.

1.6.1 Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

Application – Dairies and places of meat and poultry inspection.

Enforcing Agency – Department of Food and Agriculture.

Authority Cited – Food and Agricultural Code Sections 18735, 18960, 19384, 33481, and 33731.

References – Food and Agricultural Code Sections 18735, 18960, 19384, 33481, and 33731.

1.7.0 Department of Public Health.

1.7.1 Specific scope of application of the agency responsible for enforcement, the enforcement agency, and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

Department of Public Health.

Application – Commissaries serving mobile food preparation units, food establishments, and organized camps.

Enforcing Agency – Department of Health Services and local health agency.

Authority Cited – Health and Safety Code Sections 18897.2, 110065, 113710, and 131200.

References – Health and Safety Code Sections 18897.2, 18897.4, 18897.7, 110065, 113705, 113710, and 131200.

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1.8.0 Department of Housing and Community Development. [HCD]

1.8.1 Purpose. The purpose of this code is to establish minimum requirements to protect the health, safety, and general welfare of the occupants and the public by governing the erection, construction, reconstruction, enlargement, conversion, alteration, repair, moving, removal, demolition, sanitation, ventilation, and maintenance or use of plumbing equipment or systems.

1.8.2 Authority and Abbreviations.

1.8.2.1 General. The Department of Housing and Community Development is authorized by law to promulgate and adopt building standards and regulations for several types of building applications. These applications are grouped and identified by abbreviation in the Matrix Adoption Tables to show which model code sections and amendments are applicable to each application. The applications under the authority of the Department of Housing and Community Development are listed in Sections 1.8.2.1.1 through 1.8.2.1.3.

1.8.2.1.1 Housing Construction.

Application – Hotels, motels, lodging houses, apartment houses, dwellings, dormitories, condominiums, shelters for homeless persons, congregate residences, employee housing, factory-built housing, and other types of dwellings containing sleeping accommodations with or without common toilet or cooking facilities including accessory buildings, facilities, and uses thereto. Sections of this code which pertain to applications listed in this section are identified in the Matrix Adoption Table using the abbreviation ”HCD 1“.

Enforcing Agency – Local building department or the Department of Housing and Community Development.

Authority Cited – Health and Safety Code Sections 17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 18670, 18690, 18691, 18865, 18871.3, 18871.4, 18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 18938.3, 18944.11, and 19990: and Government Code Section 12955.1.

References – Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, and 19960 through 19997; and Government Code Sections 12955.1 and 12955.1.1.

1.8.2.1.2 Housing Accessibility.

Application – Covered multifamily dwellings as defined in Chapter 11A of the California Code of Regulations, Title 24, Part 2, also known as the California Building Code (CBC) including but not limited to lodging houses, dormitories, timeshares, condominiums, shelters, for homeless persons, congregate residences, apartment houses, dwellings employee housing, factory-built housing, and other types of dwellings containing sleeping accommodations with or without common toilet or cooking facilities.

Sections of this code identified in the Matrix Adoption Table by the abbreviation “HCD 1-AC” require specific accommodations for “PERSONS WITH DISABILITIES” as defined in Chapter 11A of the CBC. The application of such provisions shall be in conjunction with other requirements of this code and apply only to newly constructed “COVERED MULTIFAMILY DWELLING” as defined in Chapter 11A of the CBC. “HCD 1-AC” applications include, but are not limited to, the following:

  1. All newly-constructed “COVERED MULTIFAMILY DWELLINGS” as defined in Chapter 11A of the CBC.
  2. New “COMMON USE AREAS” as defined in Chapter 11A of the CBC serving existing covered multifamily dwellings.
  3. Additions to existing buildings, where the addition alone meets the definition of “COVERED MULTIFAMILY DWELLINGS” as defined in Chapter 11A of the CBC.
  4. Common use areas serving covered multifamily dwellings.
  5. Where any portion of a building's exterior is preserved, but the interior of the building is removed, including all structural portions of floors and ceilings, the building is considered of floors and ceilings, the building is considered a new building for determining the application of CBC, Chapter 11A.

HCD 1-AC building standards generally do not apply to public use areas or public accommodations such as hotels and motels. Public use areas, public accommodations and housing which is publicly funded as defined in Chapter 2 of the CBC are subject to the Division of the State Architect (DSA-AC) and are referenced in Section 1.9.1.

Enforcing Agency– Local building department or the Department of Housing and Community Development.

Authority Cited – Health and Safety Code Sections 17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 18670, 18690, 18691, 18865, 18871.3, 18871.4, 18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 18938.3, 18944.11, and 19990; and Government Code Section 12955.1.

References – Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, and 19960 through 19997; and Government Code Sections 12955.1 and 12955.1.1.

1.8.2.1.3 Permanent Buildings in Mobilehome Parks and Special Occupancy Parks.

Application– Permanent buildings, and permanent accessory buildings or structures, constructed within mobilehome parks and special occupancy

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Parks that are under the control and ownership of the park operator. Sections of this code which pertain to applications listed in this section are identified in the Matrix Adoption Table using the abbreviation “HCD 2”

Enforcing Agency– Local building department or other local agency responsible for the enforcement of Health and Safety Code Division 13, Part 2.1, commencing with Section 18200 for mobilehome parks and Health and Safety Code, Division 13, Part 2.3, commencing with Section 18860 for special occupancy parks; or the Department of Housing and Community Development.

Authority Cited – Health and Safety Code Sections 17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 18670, 18690, 18691, 18865, 18871.3, 18871.4, 18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 18938.3, 18944.11 and 19990; and Government Code Section 12955.1.

References – Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, and 19960 through 19997; and Government Code Sections 12955.1 and 12955.1.1.

1.8.3 Local Enforcing Agency.

1.8.3.1 Duties and Powers. The building department of every city, county or city and county shall enforce all the provisions of law, this code, and the other rules and regulations promulgated by the Department of Housing and Community Development pertaining to the installation, erection, construction, reconstruction, movement, enlargement, conversion, alteration, repair, removal, demolition, or arrangement of apartment houses, hotels, motels, lodging houses and dwellings, including accessory buildings, facilities, and uses thereto.

The provisions regulating the erection and construction of dwellings and appurtenant structures shall not apply to existing structures as to which construction is commenced or approved prior to the effective date of these regulations. Requirements relating to use, maintenance and occupancy shall apply to all dwellings and appurtenant structures approved for construction or constructed before or after the effective date of this code.

For additional information regarding the use and occupancy of existing buildings and appurtenant structures, see California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, commencing with Section 1.

1.8.3.2 Laws, Rules, and Regulations. Other than the building standards contained in this code, and notwith-standing other provisions of law, the statutory authority and location of the laws, rules, and regulations to be enforced by local enforcing agencies are listed by statute in Sections 1.8.3.2.1 through 1.8.3.2.5 below:

1.8.3.2.1 State Housing Law. Refer to the State Housing Law, California Health and Safety Code, Division 13, Part 1.5, commencing with Section 17910 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, commencing with Section 1, for the erection, construction, reconstruction, movement, enlargement, conversion, alteration, repair, removal, demolition, or arrangement of apartment houses, hotels, motels, lodging houses and dwellings, including accessory buildings, facilities, and uses thereto.

1.8.3.2.2 Mobilehome Parks Act. Refer to the mobilehome Parks Act, California Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 and California Code of Regulations, Title 25, Division 1, Chapter 2, commencing with Section 1000 for mobilehome park administrative and enforcement authority, permits, plans, fees, violations, inspections, and penalties both within and outside mobilehome parks.

Exception: Mobilehome parks where the Department of Housing and Community Development is the enforcing agency.

1.8.3.2.3 Special Occupancy Parks Act. Refer to the Special Occupancy Parks Act, California Health and Safety Code, Division 13, Part 2.3, commencing with Section 18860 and California Code of Regulations, Title 25, Division 1, Chapter 2.2, commencing with Section 2000 for special occupancy park administrative and enforcement authority, permits, fees, violations, inspections, and penalties both within and outside of special occupancy parks.

Exception: Special occupancy parks where the Department of Housing and Community Development is the enforcing agency.

1.8.3.2.4 Employee Housing Act. Refer to the Employee Housing Act, California Health and Safety Code, Division 13, Part 1, commencing with Section 17000 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 3, commencing with Section 600 for employee housing administrative and enforcement authority, permits, fees, violations, inspections, and penalties.

1.8.3.2.5 Factory-Built Housing Law. Refer to the Factory-Built Housing Law, California Health and Safety Code, Division 13, Part 6 commencing with Section 19960 and California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 1, commencing with Section 3000 for factory-built housing administrative and enforcement authority, permits, fees, violations, inspections, and penalties.

1.8.4 Permits, Fees, Applications, and Inspections.

1.8.4.1 Permits. A written construction permit shall be obtained from the enforcing agency prior to the erection, construction, reconstruction, installation, relocation, or alteration of any plumbing system.

Exceptions:

  1. Work exempt form permits as specified in Chapter 1, Administration, Division II, Sections 103.1.2.1 and 103.1.2.2 of this code.8
  2. Changes, alterations, or repairs of a minor nature not affecting structural features, egress, sanitation, safety, or accessibility as determined by the enforcing agency.
    Exemptions from permit requirements shall not be deemed to grant authorization for any work to be done in any manner in violation of other provisions of law or this code.

1.8.4.2 Fees. Subject to other provisions of law, the governing body of any city, county, or city and county may prescribe fees to defray the cost of enforcement of rules and regulations promulgated by the Department of Housing and Community Development. The amount of the fees shall not exceed the amount reasonably necessary to administer or process permits, certificates, forms, or other documents, or to defray the costs of enforcement. For additional information, see State Housing Law, Health and Safety Code, Division 13, Part 1.5, Section 17951 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, Article 3, commencing with Section 6.

1.8.4.3 Plan Review and Time Limitations. Subject to other provisions of law, provisions related to plan checking, prohibition of excessive delays, and contracting with or employment of private parties to perform plan checking are set forth in the State Housing Law, Health and Safety Code Section 17960.1, and for employee housing, in Health and Safety Code Section 17021.

1.8.4.3.1 Retention of Plans. The building department of every city, county, or city and county shall maintain an official copy, microfilm, or electronic or other type of photographic copy of the plans of every building, during the life to the building, for which the department issued a building permit.

Exceptions:

  1. Single or multiple dwellings not more than two stories and basement in height.
  2. Garages and other structures appurtenant to buildings listed in Exception 1.
  3. Farm or ranch buildings appurtenant to buildings listed in Exception 1.
  4. Any one-story building where the span between bearing walls does not exceed 25 feet (7620 mm), except a steel frame or concrete building.
    All plans for common interest developments as defined in Section 1351 of the California Civil Code shall be retained. For additional information regarding plan retention and reproduction of plans by an enforcing agency, see Health and Safety Code Sections 19850 through 19852.

1.8.4.4 Inspections. Construction or work for which a permit is required shall be subject to inspection by the building official and such construction or work shall remain accessible and exposed for inspection purposes until approved. Approval as a result of an inspection shall not be construed to be an approval of a violation of the provisions of the code or other regulations of the Department of Housing and Community Development.

1.8.5 Right of Entry for Enforcement.

1.8.5.1 General. Subject to other provisions of law, officers and agents of the enforcing agency may enter and inspect public and private properties to secure compliance with the rules and regulations promulgated by the Department of Housing and Community Development. For limitations and additional information regarding enforcement, see the following:

  1. For applications subject to State Housing Law as referenced in Section 1.8.3.2.1 of this code, refer to Health and Safety Code, Division 13, Part 1.5, commencing with Section 17910 and California Code of Regulations, Title 25, Division 1, Chapter 1, Sub-chapter 1, commencing with Section 1.
  2. For applications subject to the Mobilehome Parks Act as referenced in Section 1.8.3.2.2 of this code, refer to Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 and California Code of Regulations, Title 25, Division 1, Chapter 2, commencing with Section 1000.
  3. For applications subject to the Special Occupancy Parks Act as referenced in Section 1.8.3.2.3 of this code, refer to Health and Safety Code Division 13, Part 2.3, commencing with Section 18860 and California Code of Regulations, Title 25, Division 1, Chapter 2.2, commencing with Section 2000.
  4. For applications subject to the Employee Housing Act as referenced in Section 1.8.3.2.4 of this code, refer to Health and Safety Code, Division 13, Part 1, commencing with Section 17000 and California Code of Regulations, Title 25, Division 1, Chapter 1, Sub-chapter 3, commencing with Section 600.
  5. For applications subject to the Factory-Built Housing Law as referenced in Section 1.8.3.2.5 of this code, refer to Health and Safety Code, Division 13, Part 6, commencing with Section 19960 and California Code of Regulations, Title 25, Division 1, Chapter 3, Sub-chapter 1, commencing with Section 3000.

1.8.6 Local Modification by Ordinance or Regulation.

1.8.6.1 General. Subject to other provisions of law, a city, county or city and county may make changes to the provisions adopted by the Department of Housing and Community Development. If any city, county, or city and county does not amend, add, or repeal by local ordinances or regulations the provisions published in this code or other regulations promulgated by the Department of Housing and Community Development, those provisions shall be applicable and shall become effective 180 days after publication by the California Building Standards Commission. Amendments, additions, and deletions to this code adopted by a city, county or city and county pursuant to California Health and Safety Code Sections 17958.5, 17958.7, and 18941.5, together with all applicable portions of this code, shall also become effective 180 days after publications of the California Building Standard Code by the California Building Standards Commission.

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1.8.6.2 Findings, Fillings, and Rejections of Local Modifications. Prior to making any modifications or establishing more restrictive building standards, the governing body shall make express findings and filings, as required by California Health and Safety Code Section 17958.7, showing that such modifications are reasonably necessary due to local climatic, geological, or topographical conditions. No modification shall become effective or operative unless the following requirements are met:

  1. The express findings shall be made available as a public record.
  2. A copy of the modification and express finding, each document marked to cross-reference the other, shall be filed with the California Building Standards Commission for a city, county, or a city and county, and with the Department of Housing and Community Development for fire protection districts.
  3. The California Building Standards Commission has not rejected the modification or change.
    Nothing in this section shall limit the authority of fire protection districts pursuant to California Health and Safety Code Section 13869.7 (a).

1.8.7 Alternate Materials, Designs, Tests, and Methods of Construction.

1.8.7.1 General. The provisions of this code as adopted by the Department of Housing and Community Development are not intended to prevent the use of any alternate material, appliance, installation, device, arrangement, design, or method of construction not specifically prescribed by this code. Consideration and approval of alternates shall comply with Section 1.8.7.2 for local building departments and Section 1.8.7.3 for the Department of Housing and Community Development.

1.8.7.2 Local Building Departments. The building department of any city, county, or city and county may approve alternates for use in the erection, construction, reconstruction, movement, enlargement, conversion, alteration, repair, removal, demolition, or arrangement of an apartment house, hotel, motel, lodging house, or dwelling or an accessory structure, except for the following:

  1. Structures located in mobilehome parks as defined in California Health and Safety Code Section 18214.
  2. Structures located in special occupancy parks as defined in California Health and Safety Code Section 18862.43.
  3. Factory-built housing as defined in California Health and Safety Code Section 19971.

1.8.7.2.1 Approval of Alternates. The consideration and approval of alternates by a local building department shall comply with the following procedures and limitations:

  1. The approval shall be granted on a case-by-case basis.
  2. Evidence shall be submitted to substantiate claims that the proposed alternate, in performance, safety, and protection of life and health, conforms to, or is at least equivalent to, the standards contained in this code and other rules and regulations promulgated by the Department of Housing and Community Development.
  3. The local building department may require tests performed by an approved testing agency at the expense of the owner or owner 's agent as proof of compliance.
  4. If the proposed alternate is related to accessibility in covered multifamily dwellings or facilities serving “COVERED MULTIFAMILY DWELLINGS” as defined in Chapter 11A of the CBC, the proposed alternate must also meet the threshold set for “EQUIVALENT FACILITATION” as defined in Chapter 11A of the CBC.
    For additional information regarding approval of alternates by a local building department pursuant to the State Housing Law, see California Health and Safety Code Section 17951 (e) and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1.

1.8.7.3 Department of Housing and Community Development. The Department of Housing and Community Development may approve alternates for use in the erection, construction, reconstruction, movement, enlargement, conversion, alteration, repair, removal, or demolition of an apartment house, hotel, motel, loading house, dwelling, or an accessory thereto. The consideration and approval of alternates shall comply with the following:

  1. The department may require tests at the expense of the owner or owner's agent to substantiate compliance with the California Building Standards Code.
  2. The approved alternate shall, for its intended purpose, be at least equivalent in performance and safety to the materials, designs, tests, or methods of construction prescribed by this code.

1.8.8 Appeals Board.

1.8.8.1 General. Every city, county, or city and county shall establish a local appeals board and a housing appeals board. The local appeals board and housing appeals board shall each be comprised of at least five voting members who shall serve at the pleasure of the city, county or city and county. Appointees shall not be employees of the jurisdiction and shall be qualified and specifically knowledgeable in the California Building Standards Codes and applicable local ordinances.

1.8.8.2 Definitions. The following terms shall for the purposes of this section have the meaning shown.

Housing Appeals Board. The board or agency of a city, county or city and county which is authorized by the governing body of the city, county, or city and county to hear appeals regarding the requirements of the city, county, or city and county relating to the use, maintenance, and change or occupancy of buildings and structures, including requirements governing alteration, additions, repair, demolition, and moving. In any area in which there is not such board or agency, “housing appeals board” means the local appeals board having jurisdiction over the area.

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Local Appeals Board. The board or agency of a city, county, or city and county which is authorized by the governing body of the city, county, or city and county to hear appeals regarding the building requirements of the city, county, or city and county. In any area in which there is no such board or agency, “local appeals board” means the governing body of the city, county, or city and county having jurisdiction over the area.

1.8.8.3 Appeals. Except as otherwise provided by law, any person, from, or corporation adversely affected by a decision, order, or determination by a city, county, or city and county relating to the application of building standards published in the California Building Standards Code, or any other applicable rule or regulation adopted by the Department of Housing and Community Development, or any lawfully enacted ordinance by a city, county, or city and county, may appeal the issue for resolution to the local appeals board or housing appeals board as appropriate.

The local appeals board shall hear appeals relating to new building construction and the housing appeals board shall hear appeals relating to existing buildings.

1.8.9 Unsafe Buildings or Structures.

1.8.9.1 Authority to Enforce. Subject to other provisions of law, the administration, enforcement, actions, proceedings, abatement, violations, and penalties for unsafe buildings and structures are contained in the following statutes and regulations:

  1. For applications subject to State Housing Law as referenced in Section 1.8.3.2.1 of this code, refer to Health and Safety Code, Division 13, Part 1.5, commencing with Section 17910 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, commencing with Section 1.
  2. For applications subject to the Mobilehome Parks Act as referenced in Section 1.8.3.2.2 of this code, refer to Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 and California Code of Regulations, Title 25, Division 1, Chapter 2, commencing with Section 1000.
  3. For applications subject to the Special Occupancy Parks Act as referenced in Section 1.8.3.2.3 of this code, refer to Health and Safety Code, Division 13, Part 2.3, commencing with Section 18860 and California Code of Regulations, Title 25, Division 1, Chapter 2.2, commencing with Section 2000.
  4. For applications subject to the Employee Housing Act as referenced in Section 1.8.3.2.4 of this code, refer to Health and Safety Code, Division 13, Part 1, commencing with Section 17000 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 3, commencing with Section 600.
  5. For applications subject to the Factory-Built Housing Law as referenced in Section 1.8.3.2.5 of this code, refer to Health and Safety Code, Division 13, Part 6, commencing with Section 19960 and California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 1, commencing with Section 3000.

1.8.9.2 Actions and Proceedings. Subject to other provisions of law, punishments, penalties, and fines for violations of building standards are contained in the following statutes and regulations:

  1. For applications subject to the State Housing Law as referenced in Section 1.8.3.2.1 of this code, refer to Health and Safety Code, Division 13, Part 1.5, commencing with Section 17910 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 1, commencing with Section 1.
  2. For applications subject to the Mobilehome Parks Act as referenced in Section 1.8.3.2.2 of this code, refer to Health and Safety Code, Division 13, Part 2.1, commencing with Section 18200 and California Code of Regulations, Title 25, Division 1, Chapter 2, commencing with Section 1000.
  3. For applications subject to the Special Occupancy Parks Act as referenced in Section 1.8.3.2.3. of this code, refer to Health and Safety Code, Division 13, Part 2.3, commencing with Section 18860 and California Code of Regulations, Title 25, Divisions 1, Chapter 2.2, commencing with Section 2000.
  4. For applications subject to the Employee Housing Act as referenced in Section 1.8.3.2.4 of this code, refer to Health and Safety Code, Division 13, Part 1, commencing with Section 17000 and California Code of Regulations, Title 25, Division 1, Chapter 1, Subchapter 3, commencing with Section 600.
  5. For applications subject to the Factory-Built Housing Law as referenced in Section 1.8.3.2.5 of this code, refer to Health and Safety Code, Division 13, Part 6, commencing with Section 19960 and California Code of Regulations, Title 25, Division 1, Chapter 3, Subchapter 1, commencing with Section 3000.

1.8.10 Other Building Regulations.

1.8.10.1 Existing Structures. Notwithstanding other provisions of law, the replacement, retention, and extension of original materials and the use of original methods of construction for any existing building or accessory structure, or portions thereof, shall be permitted. For additional information, see California Health and Safety Code Sections 17912 and 17958.8.

1.8.10.2 Moved Structures. Subject to the requirements of California Health and Safety Code Sections 17922.3 and 17958.9, local ordinances or regulations relating to a moved residential or accessory structure shall, after July 1, 1978, permit the retention of existing materials and methods of construction so long as the structure does not become or continue to be a substandard building.

Note:

Authority Cited – Health and Safety Code Sections 17040, 17050, 17920.9, 17921, 17921.3, 17921.6, 17921.10, 17922, 17922.6, 17922.12, 17927, 17928, 17959.6, 18300, 18552, 18554, 18620, 18630, 18640, 18670, 18690, 18691, 18865, 18871.3, 18871.4, 18873, 18873.1, 18873.2, 18873.3, 18873.4, 18873.5, 18938.3, 18944.11, and 19990; and Government Code Section 12955.1.

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References – Health and Safety Code Sections 17000 through 17062.5, 17910 through 17995.5, 18200 through 18700, 18860 through 18874, and 19960 through 19997; and Government Code Sections 12955.1 and 12955.1.1.

1.9.0 Division of the State Architect.

1.9.1 Division of the State Architect–Access Compliance.

Note: For applications listed in Section 1.9.1 of the California Building Code, regulated by the Division of the State Architect – Access Compliance see California Code of Regulations, Title 24, Part 2 (California Building Code), Chapter 1 (Division 1 California Administration) under authority cited by Government Code Section 4450 and in reference cited by Government Code Section 4450 through 4461, 12955.1, and Health and Safety Code Sections 18949.1, 19952 through 19959.

1.9.2 Division of the State Architect — Structural Safety.

1.9.2.1 DSA-SS (Division of the State Architect — Structural Safety).

Application — Public elementary and secondary schools, community college buildings, and state-owned or state-leased essential services buildings.

Enforcing Agency — (Division of the State Architect — Structural Safety) (DSA - SS).

The Division of the State Architect has been delegated the responsibility and authority by the Department of General Services to review and approve the design and observe the construction of public elementary and secondary schools, community colleges, and state-owned or state-leased essential services buildings.

Authority Cited — Education Code Section 17310 and 81142, and Health and Safety Code Section 16022.

References — Education Code Sections 17280 through 17317 and 81130 through 81147, and Health and Safety Code Sections 16000 through 16023.

1.9.2.2. DSA-SS/CC (Division of the State Architect — Structural Safety/Community Colleges).

Application — Community Colleges.

The Division of the State Architect has been delegated the authority by the Department of General Services to promulgate alternate building standards for application to community colleges, which a community college may elect to use in lieu of standards promulgated by DSA-SS in accordance with Section 1.9.2.1. Refer to Title 24, Part 2, Section 1.9.2.2.

Enforcing Agency — Division of the State Architect — Structural Safety/Community Colleges (DSA-SS/CC).

The Division of the State Architect has been delegated the authority by the Department of General Services to review and approve the design and oversee construction of community colleges electing to use the alternative building standards as provided in this section.

Authority Cited — Education Code Section 81053.

References — Education Code Sections 81052, 81053, and 81130 through 81147.

1.10.0 Office of Statewide Health Planning and Development.

1.10.1 OSHPD 1. Specific scope of application of the agency responsible for enforcement, enforcement agency, specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

OSHPD 1

Application – General acute-care hospitals and acute psychiatric hospitals, excluding distinct part units or distinct part freestanding buildings providing skilled nursing or intermediate-care services. For Structural Regulations: Skilled nursing facilities and/or intermediate-care facilities except those skilled nursing facilities and intermediate care facilities of single story, Type V, wood or light steel-frame construction.

Enforcing Agency – Office of Statewide Health planning and Development (OSHPD). The office shall enforce the Division of the State Architect access compliance regulations and the regulations of the Office of the State Fire Marshal for the above stated facility types.

1.10.1.1 Applicable Administrative Standards.

  1. Title 24, Part 1, California Code of Regulations: Chapters 6 and 7.
  2. Title 24, Part 2, California Code of Regulations: Sections 1.1.0 and 1.10.0, Chapter 1, Division I and Sections 101-117, Chapter 1, Division II.

1.10.1.2 Applicable Building Standards. California Building Standards Code, Title 24, Parts 2,3,4,5,9,10, and 11.

Authority Cited – Health and Safety Code Sections 127010, 127015, 1275, and 129850.

References – Health and Safety Code Sections 19958, 127010, 127015, 129680, 1275, and 129675 through 130070.

1.10.2 OSHPD 2. Specific scope of application of the agency responsible for enforcement, enforcement agency, specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

OSHPD 2

Application – Skilled nursing facilities and intermediate-care facilities, including distinct part skilled nursing and intermediate-care services on a general acute-care or acute psychiatric hospital license, provided either in a rate unit or a freestanding building. For Structural Regulations: Single-story, Type V skilled nursing facility and/or intermediate-care facilities utilizing wood or light steel-frame construction.

Enforcing Agency – Office of Statewide Health Planning and Development (OSHPD). The office shall also enforce the Division of the State Architect access compliance regulations and the regulations of the Office of the State Fire Marshal for the above stated facility type.

1.10.2.1 Applicable Administrative Standards:

  1. Title 24, Part 1, California Code of Regulations: Chapter 7.
  2. Title 24, Part 2, California Code of Regulations: Sections 1.1.0 and 1.10.0, Chapter 1, Division I and Sections 101-117, Chapter 1, Division II.

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1.10.2.2 Applicable Building Standards. California Building Standards Code, Title 24, Parts 2,3,4,5,9,10, and 11.

Authority Cited – Health and Safety Code Sections 127010, 127015, 1275, and 129850.

References – Health and Safety Code Sections 127010, 127015, 1275, and 129680.

1.10.3 OSHPD 3. Specific scope of application of the agency responsible for enforcement, enforcement agency, specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

OSHPD 3

Application – Licensed clinics and any freestanding building under a hospital license where outpatient clinical services are provided.

Enforcing Agency – Local building department.

1.10.3.1 Applicable Administrative Standards.

  1. Title 24, Part 1, California Code of Regulations: Chapter 7.
  2. Title 24, Part 2, California Code of Regulations: Sections 1.1.0 and 1.10.0, Chapter 1, Division 1 and Sections 101-117, Chapter 1, Division II.

1.10.3.2 Applicable Building Standards. California Building Standards Code, Title 24, Parts 2,3,4,5,9,10, and 11.

Authority Cited – Health and Safety Code Sections 127010, 127015, and 1226.

References– Health and Safety Code Sections 127010, 127015, 129885, and 1226, Government Code Section 54350, and State Constitution Article 11, Section 7.

1.10.4 OSHPD 4. Specific scope of application of the agency responsible for enforcement, enforcement agency, specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

OSHPD 4

Application – Correctional Treatment Centers.

Enforcing Agency – Office of Statewide Health Planning and Development (OSHPD). The office shall also enforce the Division of the State Architect access compliance regulations and the regulations of the Office of the State Fire Marshal for the above stated facility types.

1.10.4.1 Applicable Administrative Standards.

  1. Title 24, Part 1, California Code of Regulations: Chapter 7.
  2. Title 24, Part 2, California Code of Regulations: Sections 1.1.0 and 1.10.0. Chapter 1, Division I and Section 101-117, Chapter 1, Division II.

1.10.4.2 Applicable Building Standards. California Building Standards Code, Title 24, Parts 2, 3, 4, 5, 9, 10 and 11.

Authority Cited – Health and Safety Code Sections 127010, 127015, and 129790.

References – Health and Safety Code Sections 127010, 127015, 1275, and 129675 through 130070.

1.11.0 Office of the State Fire Marshal.

1.11.1 SFM-Office of the State Fire Marshal. Specific scope of application of the agency responsible for enforcement, the enforcement agency and the specific authority to adopt and enforce such provisions of this code, unless otherwise stated.

Application:

Institutional, Educational, or any Similar Occupancy. Any building or structure used or intended for use as an asylum, jail, mental hospital, hospital, sanitarium, home for the aged, children’s nursery, children’s home, school, or any similar occupancy of any capacity.

Authority Cited – Health and Safety Code Section 13143.

Reference – Health and Safety Code Section 13143.

Assembly or Similar Place of Assemblage. Any theater, dancehall, skating rink, auditorium, assembly hall, meeting hall, nightclub, fair building, or similar place of assemblage where 50 or more persons may gather together in a building, room or structure for the purpose of amusement, entertainment, instruction, deliberation, worship, drinking or dining, awaiting transportation, or education.

Authority Cited – Health and Safety Code Section 13143.

Reference – Health and Safety Code Section 13143.

Small Family Day-Care Homes.

Authority Cited – Health and Safety Code Sections 1597.45, 1597.54, 13143, and 17921.

Reference – Health and Safety Code Section 13143.

Large Family Day-Care Homes.

Authority Cited – Health and Safety Code Section 1597.46, 1597.54, and 17921.

Reference – Health and Safety Code Section 13143.

Residential Facilities and Residential Facilities for the Elderly.

Authority Cited – Health and Safety Code Section 13133.

Reference – Health and Safety Code Section 13143.

Any State Institution or Other State– Owned or State–Occupied Building.

Authority Cited – Health and Safety Code Section 13108.

Reference – Health and Safety Code Section 13143.

High-Rise Structures.

Authority Cited – Health and Safety Code Section 13211.

Reference – Health and Safety Code Section 13143.

Motion Picture Production Studios.

Authority Cited – Health and Safety Code Section 13143.1

Reference – Health and Safety Code Section 13143.

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Organized Camps.

Authority Cited – Health and Safety Code Section 18897.3

Reference – Health and Safety Code Section 13143.

Residential.

All hotels, motels, lodging houses, apartment houses and dwellings, including congregate residences and buildings and structures accessory thereto. Multiple-story structures existing on January 1, 1975, let for human habitation, including and limited to, hotels, motels, apartment houses, less than 75 feet(22 860 mm) above the lowest floor level having building access, wherein rooms used for sleeping are let above the ground floor.

Authority Cited – Health and Safety Code Sections 13143.2 and 17921.

Reference – Health and Safety Code Section 13143.

Residential Care Facilities.

Certified family-care homes, out-of-home placement facilities, halfway houses, drug and/or alcohol rehabilitation facilities, and any building or structure used or intended for use as a home or institution for the housing of any person of any age when such person is referred to or placed within such home or institution for protective social care and supervision services by any governmental agency.

Authority Cited – Health and Safety Code Section 13143.6.

Reference – Health and Safety Code Section 13143.

Tents, Awnings, or Other Fabric Enclosures Used in Connection with Any Occupancy.

Authority Cited– Health and Safety Code Section 13116.

Reference – Health and Safety Code Section 13143.

Fire Alarm Devices, Equipment, and Systems in Connection with Any Occupancy.

Authority Cited – Health and Safety Code Section 13114.

Reference – Health and Safety Code Section 13143.

Hazardous Materials.

Authority Cited – Health and Safety Code Section 13143.9.

Reference – Health and Safety Code Section 13143.

Flammable and Combustible Liquids.

Authority Cited – Health and Safety Code Section 13143.6

Reference – Health and Safety Code Section 13143.

Public School Automatic Fire Detection, Alarm, and Sprinkler Systems.

Authority Cited – Health and Safety Code Section 13143 and California Education Code Article 7.5, Sections 17074.50, 17074.52, and 17074.54.

References – Government Code Section 11152.5, Health and Safety Code Section 13143 and California Education Code Chapter 12.5, Leroy F. Greene School Facilities Act of 1998, Article 1.

Wildland-Urban Interface Fire Area.

Authority Cited – Health and Safety Code Sections 13143, 13108.5(a), and 18949.2(b) and (c); and Government Code Section 51189.

References – Health and Safety Code Sections 13143, Government Code Sections 51176, 51177, 51178, and 51179; and Public Resources Code Sections 4201 through 4204.

1.11.2 Duties and Powers of the Enforcing Agency.

1.11.2.1 Enforcement.

1.11.2.1.1 The responsibility for enforcement of building standards adopted by the State Fire Marshal and published in the California Building Standards Code relating to fire and panic safety and other regulations of the State Fire Marshal shall except as provided in Section 1.11.2.1.2 be as follows:

  1. The city, county, or city and county, with jurisdiction in the area affected by the standard or regulation shall delegate the enforcement of the building standards relating to fire and panic safety and other regulations of the State Fire Marshal as they relate to Group R-3 occupancies, as described in Section 310.1 of Part 2 of the California Building Standards Code, to either of the following:
    1. The chief of the fire authority of the city, county, or city, and county or an authorized representative.
    2. The chief building official of the city, county, or city and county, or an authorized representative.
  2. The chief of any city or county fire department or of any fire protection district, and authorized representatives, shall enforce within the jurisdiction the building standards and other regulations of the State Fire Marshal, except those described in Item 1 or 4.
  3. The State Fire Marshal shall have authority to enforce the building standards and other regulations of the State Fire Marshal in areas outside of corporate cities and districts providing fire protection services.
  4. The State Fire Marshall shall have authority to enforce the building standards and other regulations of the State Fire Marshal in corporate cities and districts providing fire-protection services on request of the chief fire official or the governing body.
  5. Any fee charged pursuant to the enforcement authority of this section shall not exceed the estimated reasonable cost of providing the service for which the fee is charged pursuant to Section 66014 of the Government Code.

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1.11.2.1.2 Pursuant to Health and Safety Code Section 13108, and except as otherwise provided in this section, building standards adopted by the State Fire Marshal published in the California Building Standards Code relating to fire and panic safety shall be enforced by the State Fire Marshal in all state –owned buildings, state –occupied buildings, and state owned buildings, state –occupied buildings, and state institutions throughout the state. Upon the written request of the chief fire official of any city, county, or fire-protection district, the State Fire Marshal may authorize such chief fire official and his or her authorized representatives, in their geographical area of responsibility, to make fire-prevention inspections of state-owned or state-occupied buildings, other than state institutions, for the purpose of enforcing the regulations relating to fire and panic safety adopted by the State Fire Marshal pursuant to this section and building standards relating to fire and panic safety published in the California Building Standards Code. Authorization from the State Fire Marshall shall be limited to those fire departments or fire districts which maintain a fire-prevention bureau staffed by paid personnel.

Pursuant to Health and Safety Code Section 13108, any requirement or order made by any chief fire official who is authorized by the State Fire Marshal to make fire-prevention inspections of state –owned or state-occupied buildings, other than state institutions, may be appealed to the State Fire Marshal. The State Fire Marshal shall, upon receiving an appeal and subject to the provisions of Chapter 5 (commencing with Section 18945) of Part 2.5 of Division 13 of the Health and Safety Code, determine if the requirement or order made is reasonably consistent with the fire and panic safety regulations adopted by the State Fire Marshal and building standards relating to fire and panic safety published in the California Building Code.

Any person may request a code interpretation from the State Fire Marshal relative to the intent of any regulation or provision adopted by the State Fire Marshal. When the request relates to a specific project, occupancy or building, the State Fire Marshal shall review the issue with the appropriate local enforcing agency prior to rendering such code interpretation.

1.11.2.1.3 Pursuant to Health and Safety Code Section 13112, any persons who violates any order, rule or regulation of the State Fire Marshal is guilty of a misdemeanor punishable by a fine of not less than $100.00 or more than $500.00, or by imprisonment for not less than six months, or by both. A person is guilty of a separation offense each day during which he or she commits, continues, or permits a violation of any provision of, or any order, rule or regulation of, the State Fire Marshall as contained in this code.

Any inspection authority who, in the exercise of his or her authority as a deputy State Fire Marshal, causes and legal complaints to be filed or any arrest to be made shall notify the State Fire Marshal immediately following such action.

1.11.2.2 Right of Entry. The fire chief of any city, county, or fire-protection district, or such person’s authorized representative, may enter any state institution or any other state-owned or state-occupied building for the purpose of preparing a fire –suppression preplanning program or for the purpose of investigating any fire in a state-occupied building.

The State Fire Marshal, his or her deputies or salaried assistants, the chief of any city or county fire department or fire-protection district and his or her authorized representatives may enter any building or premises not used for dwelling purposes at any reasonable hour for the purpose of enforcing this chapter. The owner, lessee, manager, or operator of any such building or premises shall permit the State Fire Marshal, his or her deputies or salaried assistants and the chief of any city or county fire department or fire-protection district and his or her authorized representatives to enter and inspect them at the time and for the purpose stated in this section.

1.11.2.3 More Restrictive Fire and Panic Safety Building Standards.

1.11.2.3.1 Any fire-protection district organized pursuant to Health and Safety Code Part 2.7 (commencing with Section 13800) of Division 12 may adopt building standards relating to fire and panic safety that are more stringent than those building standards adopted by the State Fire Marshal and contained in the California Building Standards Code. For these purposes, the district board shall be deemed a legislative body and the district shall be deemed a local agency. Any changes or modifications that are more stringent than the requirements published in the California Building Standards Code relating to fire and panic safety shall be subject to Section 1.1.8.1.

1.11.2.3.2 Any fire protection district that proposes to adopt an ordinance pursuant to this section shall, not less than 30 days prior to noticing a proposed ordinance for public hearing, provide a copy of that ordinance, together with the adopted findings made pursuant to Section 1.11.2.3.1, to the city, county, or city and county where the ordinance will apply. The city, county, or city and county may provide the district with written comments, which shall become part of the fire-protection district’s public hearing record.

1.11.2.3.3 The fire-protection district shall transmit the adopted ordinance to the city, county, or city and county where the ordinance will apply. The legislative body of the city, county, or city and county may ratify, modify or deny an adopted ordinance and transmit its determination to the district within 15 days of the determination. Any modification or denial of an adopted ordinance shall include a written statement

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describing the reasons for any modifications or denial. No ordinance adopted by the district shall be effective until ratification by the city, county, or city and county where the ordinance will apply. Upon ratification of an adopted ordinance, the city, county, or city and county shall file a copy of the findings of the district, and any findings of the city, county, or city and county together with the adopted ordinance expressly marked and identified to which each finding refers, in accordance with Section 1.1.8.1(3).

1.11.2.4 Request for Alternate Means of Protection. Requests for approval to use an alternative material, assembly or materials, equipment, method of construction, method of installation of equipment, or means of protection shall be made in writing to the enforcing agency by the owner or the owner's authorized representative and shall be accompanied by a full statement of the conditions. Sufficient evidence or proof shall be submitted to substantiate any claim that may be made regarding its conformance. The enforcing agency may require tests and the submission of a test report from an approved testing organization as set forth in Title 19, California Code of Regulation, to substantiate the equivalency of the proposed alternative means of protection.

When a request for alternate means of protection involves hazardous materials, the Authority Having Jurisdiction may consider implementation of the findings and recommendations identified in a Risk Management Plan (RMP) developed in accordance with Title 19, Division 2, Chapter 4.5, Article 3.

Approval of a request for use of an alternative material, assembly of materials, equipment, method of construction, method of installation of equipment, or means of protection made pursuant to these provisions shall be limited to the particular case covered by request and shall not be construed as establishing any precedent for any future request.

1.11.2.5 Appeals. When a request for an alternate means of protection has been denied by the enforcing agency, the applicant may file a written appeal to the State Fire Marshal for consideration of the applicant's proposal. In considering such appeal, the State Fire Marshal may seek the advice of the State Board of Fire Services. The State Fire Marshal shall, after considering all of the facts presented, including any recommendations of the State Board of Fire Services, determine if the proposal is for the purposes intended, at least equivalent to that specified in these regulations in quality, strength, effectiveness, fire resistance, durability, and safety, and shall transmit such findings and any recommendations to the applicant and to the enforcing agency.

1.11.3 Construction Documents. In addition to the provisions of this Section, see Title 24, Part 2, California Building Code, Appendix Chapter 1, Section 106 for additional requirements.

1.11.3.1 Public Schools. Plans and specifications for the construction, alteration or addition to any building owned, leased or rented by any public school district shall be submitted to the Division of the State Architect.

1.11.3.2 Movable Walls and Partitions. Plans or diagrams shall be submitted to the enforcing agency for approval before the installation of, or rearrangement of, any movable wall or partition in any occupancy. Approval shall be granted only if there is no increase in the fire hazard.

1.11.3.3 New Construction High-Rise Buildings.

  1. Complete plans or specifications, or both, shall be prepared covering all work required to comply with new construction high-rise buildings. Such plans and specifications shall be submitted to the enforcing agency having jurisdiction.
  2. All plans and specifications shall be prepared under the responsible charge of an architect or a civil or structural engineer authorized by law to develop construction plans and specifications, or by both such architect and engineer. Plans and specifications, or by both such architect and engineer. Plans and specifications shall be prepared by an engineer duly qualified in that branch of engineering necessary to perform such services. Administration of the work of construction shall be under the charge of the responsible architect or engineer except that where plans and specifications involve alterations or repairs, such work of construction may be administered by an engineer duly qualified to perform such services and holding a valid certificate under Chapter 7 (commencing with Section 65700) of Division 3 of the Business and Professions Code for performance of services in that branch of engineering in which said plans, specifications and estimates and work of construction are applicable.
    This section shall not be construed as preventing the design of fire-extinguishing systems by persons holding a C-16 license issued pursuant to Division 3, Chapter 9, Business and Professions Code. In such instances, however, the responsibility charge of this section shall prevail.

1.11.3.4 Existing High-Rise Buildings.

  1. Complete plans or specifications, or both, shall be prepared covering all work required by Section 3412 for existing high-rise buildings. Such plans or specifications shall be submitted to the enforcing agency having jurisdiction.
  2. When new construction is required to conform with the provisions of these regulations, complete plans or specifications, or both, shall be prepared in accordance with the provisions of this subsection. As used in this section “new construction” is not intended to include repairs, replacements or minor alterations which do not disrupt or appreciably add to or affect the structural aspects of the building.

1.11.3.5 Retention of Plans. Refer to Building Standards Law, Health and Safety Code Sections 19850 and 19851, for permanent retention of plans.

1.11.4 Fees

1.11.4.1 Other Fees. Pursuant to Health and Safety Code Section 13146.2, a city, county, or district which inspects a hotel, motel, lodging house, or apartment house may

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charge and collect a fee for the inspection from the owner of the structure in an amount, as determined by the city, county, or district, sufficient to pay its costs of that inspection.

1.11.4.2 Large Family Day Care. Pursuant to Health and Safety Code Section 1597.46, Large Family Day Care Homes, the local government shall process any required permit as economically as possible, and fees charged for review shall not exceed the costs of the review and permit process.

1.11.4.3 High-Rise. Pursuant to Health and Safety Code Section 13217, High-Rise Structure Inspection: Fees and Costs, a local agency which inspects a high-rise structure pursuant to Health and Safety Code Section 13217 may charge and collect a fee for the inspection from the owner of the high-rise structure in an amount, as determined by the local agency, sufficient to pay its costs of that inspection.

1.11.4.4 Fire Clearance Preinspection. Pursuant to Health and Safety Code Section 13235, Fire Clearance Preinspection, Fee; upon receipt of a request from a prospective licensee of a community care facility, as defined in Section 1502, of a residential-care facility for the elderly, as defined in Section 1569.2, or of a child day-care facility, as defined in Section 1596.750, the local fire enforcing agency, as defined in Section 13244, or State Fire Marshal, whichever has primary jurisdiction, shall conduct a preinspection of the facility prior to the final fire clearance approval. At the time of the preinspection, the primary fire enforcing agency shall price consultation and interpretation of the fire safety regulations and shall notify the prospective licensee of the facility in writing of the specific fire safety regulations which shall be enforced in order to obtain fire clearance approval. A fee of not more than $50.00 may be charged for the preinspection of a facility with a capacity to serve 25 or fewer persons. A fee of not more than $100.00 may be charged for a preinspection of a facility with a capacity to serve 26 or more persons.

1.11.4.5 Care Facilities. The primary fire enforcing agency shall complete the final fire clearance inspection for a community care facility, residential-care facility for the elderly, or child day-care facility within 30 days of receipt of the request for the final inspection, or as of the date the prospective facility requests the final prelicensure inspection by the State Department of Social Services, whichever is later.

Pursuant to Health and Safety Code Section 13235, a preinspection fee of not more than $50 may be charged for a facility with a capacity to serve 25 or less clients. A fee of not more than $100 may be charged for a preinspection of a facility with a capacity to serve 26 or more clients.

Pursuant to Health and Safety Code Section 13131.5, a reasonable final inspection fee, not to exceed the actual cost of inspection services necessary to complete a final inspection may be charged for occupancies classified as residential care facilities for the elderly (RCFE).

Pursuant to Health and Safety Code Section 1569.84, neither the State Fire Marshal nor any local public entity shall charge any fee for enforcing fire inspection regulations pursuant to state law or regulation or local ordinance, with respect to residential-care facilities for the elderly (RCFE) which service six or fewer persons.

1.11.4.6 Requests of the Office of the State Fire Marshal. Whenever a local Authority Having Jurisdiction requests that the State Fire Marshal perform plan review and/or inspection services related to a building permit, the applicable fees for such shall be payable to the Office of the State Fire Marshal.

1.11.5 Inspections. Work performed subject to the provisions of this code shall comply with the inspection requirements of Title 24, Part 2, California Building Standards Code, Sections 109.1, 109.3, 109.3.4, 109.3.5, 109.3.6, 109.3.8, 109.3.9, 109.3.10, 109.5, and 109.6 as adopted by the Office of the State Fire Marshal.

1.11.5.1 Existing Group I-1 or R occupancies. Licensed 24-hour care in a Group I-1 or R occupancy in existence and originally classified under previously adopted state codes shall be reinspected under the appropriate previous code, provided there is no change in the use or character which would place the facility in a different occupancy group.

1.11.6 Certificate of Occupancy. A Certificate of Occupancy shall be issued as specified in Title 24, Part 2, California Building Code, Section III.

Exception: Group R-3 and Group U Occupancies.

1.11.7 Temporary Structures and Uses. See Title 24, Part 2, California Building Code, Section 107.

1.11.8 Service Utilities. See Title 24, Part 2, California Building Code, Section 112.

1.11.9 Stop Work Order. See Title 24, Part 2, California Building Code, Section 115.

1.11.10 Unsafe Buildings, Structures, and Equipment. See Title 24, Part 2, California Building Code, Section 116.

1.12.0 Reserved for the State Librarian.

1.13.0 Department of Water Resources (DWR).

DWR-Department of Water Resources.

Application – Construction, installation, or alteration of graywater systems for subsurface irrigation and other safe uses.

Enforcing Agency – Local building department or the Department of Water Resources.

Authority Cited – Water Code Sections 14875 through 14877.3.

References – Water Code Sections 14875 through 14877.3.

1.14.0 Reserved for the State Lands Commission.

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DIVISION II
ADMINISTRATION

101.0 Title, Scope, and General.

101.1 Title. This document shall be known as the “Uniform Plumbing Code,” may be cited as such, and will be referred to herein as “this code.”

101.2 Purpose. This code is an ordinance providing minimum requirements and standards for the protection of the public health, safety, and welfare.

101.3 Plans Required. The Authority Having Jurisdiction shall be permitted to require the submission of the plans, specifications, drawings, and such other information as required by the Authority Having Jurisdiction, prior to the commencement of, and at any time during the progress of, any work regulated by this code.

The issuance of a permit upon plans and specifications shall not prevent the Authority Having Jurisdiction from thereafter requiring the correction of errors in said plans and specifications or from preventing construction operations being carried on thereunder when in violation of this code or of any other pertinent ordinance or from revoking any certificate of approval when issued in error.

101.4 Scope.

101.4.1 The provisions of this code shall apply to the erection, installation, alteration, repair, relocation, replacement, addition to, use, or maintenance of plumbing systems within this Jurisdiction.

101.4.1.1 Repairs and Alterations.

101.4.1.1.1 In existing buildings or premises in which plumbing installations are to be altered, repaired, or renovated, deviations from the provisions of this code are permitted, provided such deviations are found to be necessary and are first approved by the Authority Having Jurisdiction.

101.4.1.1.2 Existing building sewers and building drains shall be permitted to be used in connection with new buildings or new plumbing and drainage work only when they are found on examination and test to conform in all respects to the requirements governing new work, and the proper Authority Having Jurisdiction shall notify the owner to make any changes necessary to conform to this code. No building, or part thereof, shall be erected or placed over any part of a drainage system that is constructed of materials other than those approved elsewhere in this code for use under or within a building.

101.4.1.1.3 Openings into a drainage or vent system, excepting those openings to which plumbing fixtures are properly connected or which constitute vent terminals, shall be permanently plugged or capped in an approved manner, using the appropriate materials required by this code.

101.4.1.2 Maintenance. The plumbing and drainage system of any premises under the Authority Having Jurisdiction shall be maintained in a sanitary and safe operating condition by the owner or the owner's agent.

101.4.1.3 Existing Construction. No provision of this code shall be deemed to require a change in any portion of a plumbing or drainage system or any other work regulated by this code in or on an existing building or lot when such work was installed and is maintained in accordance with law in effect prior to the effective date of this code, except when any such plumbing or drainage system or other work regulated by this code is determined by the Authority Having Jurisdiction to be in fact dangerous, unsafe, insanitary, or a nuisance and a menace to life, health, or property.

101.4.1.4 Conflicts Between Codes. When the requirements within the jurisdiction of this plumbing code conflict with the requirements of the mechanical code, this code shall prevail.

101.4.2 Additions, alterations, repairs, and replacement of plumbing systems shall comply with the provisions for new systems except as otherwise provided in Section 101.5.

101.4.3 The provisions in the appendices are intended to supplement the requirements of this code and shall not be considered part of this code unless formally adopted as such.

101.5 Application to Existing Plumbing System.

101.5.1 Additions, Alterations, or Repairs. Additions, alterations, or repairs shall be permitted to be made to any plumbing system without requiring the existing plumbing system to comply with all the requirements of this code, provided the addition, alteration, or repair conforms to that required for a new plumbing system. Additions, alterations, or repairs shall not cause an existing system to become unsafe, insanitary, or overloaded.

101.5.2 Health and Safety. Whenever compliance with the provisions of this code fails to eliminate or alleviate a nuisance, or any other dangerous or insanitary condition that may involve health or safety hazards, the owner or the owner's agent shall install such additional plumbing and drainage facilities or shall make such repairs or alterations as may be ordered by the Authority Having Jurisdiction.

101.5.3 Existing Installation. Plumbing systems lawfully in existence at the time of the adoption of this code may have their use, maintenance, or repair continued if the use, maintenance, or repair is in accordance with the original design and location and no hazard to life, health, or property has been created by such plumbing system.

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101.5.4 Changes in Building Occupancy. Plumbing systems that are a part of any building or structure undergoing a change in use or occupancy, as defined in the Building Code, shall comply to the requirements of this code that may be applicable to the new use or occupancy.

101.5.5 Maintenance. Plumbing systems, materials, and appurtenances, both existing and new, and parts thereof shall be maintained in proper operating condition. Devices or safe-guards required by this code shall be maintained in conformance with the code edition under which installed. The owner or the owner’s designated agent shall be responsible for maintenance of plumbing systems. To determine compliance with this subsection, the Authority Having Jurisdiction shall be permitted to cause any plumbing system to be reinspected.

101.5.6 Moved Buildings. Plumbing systems that are part of buildings or structures moved into this jurisdiction shall comply with the provisions of this code for new installations, except as provided for in Section 103.5.5.2.

102.0 Organization and Enforcement.

102.1 Authority Having Jurisdiction.

The Authority Having Jurisdiction shall be the Authority duly appointed to enforce this code.

102.2 Duties and Powers of the Authority Having Jurisdiction.

102.2.1 The Authority Having Jurisdiction shall be permitted to appoint such assistants, deputies, inspectors, or other employees as necessary to carry out the functions of the department and this code.

102.2.2 Right of Entry. Whenever it is necessary to make an inspection to enforce the provisions of this code, or whenever the Authority Having Jurisdiction has reasonable cause to believe that there exists in any building or upon any premises any condition or violation of this code that makes the building or premises unsafe, insanitary, dangerous, or hazardous, the Authority Having Jurisdiction shall be permitted to enter the building or premises at all reasonable times to inspect or to perform the duties imposed upon the Authority Having Jurisdiction by this code, provided that if such building or premises is occupied, the Authority Having Jurisdiction shall present credentials to the occupant and request entry. If such building or premises is unoccupied, the Authority Having Jurisdiction shall first make a reasonable effort to locate the owner or other person having charge or control of the building or premises and request entry. If entry is refused, the Authority Having Jurisdiction has recourse to every remedy provided by law to secure entry.

When the Authority Having Jurisdiction shall have first obtained a proper inspection warrant or other remedy provided by law to secure entry, no owner, occupant, or person having charge, care, or control of any building or premises shall fail or neglect, after proper request is made as herein provided, to promptly permit entry herein by the Authority Having Jurisdiction for the purpose of inspection and examination pursuant to this code.

102.2.3 Stop Orders. Whenever any work is being done contrary to the provisions of this code, the Authority Having Jurisdiction shall be permitted to order the work stopped by notice in writing served on any persons engaged in the doing or causing such work to be done, and any such persons shall forthwith stop work until authorized by the Authority Having Jurisdiction to proceed with the work.

102.2.4 Authority to Disconnect Utilities in Emergencies. The Authority Having Jurisdiction shall have the authority to disconnect a plumbing system to a building, structure, or equipment regulated by this code in case of emergency where necessary to eliminate an immediate hazard to life or property.

102.2.5 Authority to Condemn. Whenever the Authority Having Jurisdiction ascertains that any plumbing system or portion thereof, regulated by this code, has become hazardous to life, health, or property, or has become insanitary, the Authority Having Jurisdiction shall order in writing that such plumbing either be removed or placed in a safe or sanitary condition, as appropriate. The order shall fix a reasonable time limit for compliance. No person shall use of or maintain defective plumbing after receiving such notice.

When such plumbing system is to be disconnected, written notice shall be given. In cases of immediate danger to life or property, such disconnection shall be permitted to be made immediately without such notice.

102.2.6 Liability. The Authority Having Jurisdiction charged with the enforcement of this code, acting in good faith and without malice in the discharge of the Authority Having Jurisdiction’s duties, shall not thereby be rendered personally liable for any damage that may accrue to persons or property as a result of any act or by reason of any act or omission in the discharge of duties. A suit brought against the Authority Having Jurisdiction or employee because of such act or omission performed in the enforcement of any provision of this code shall be defended by legal counsel provided by this jurisdiction until final termination of such proceedings.

102.3 Violations and Penalties.

102.3.1 Violations. It shall be unlawful for any person, firm, or corporation to erect, construct, enlarge, alter, repair, move, improve, remove, convent, demolish, equip, use, or maintain any plumbing or permit the same to be done in violation of this code.

102.3.2 Penalties. Any person, firm, or corporation violating any provision of this code shall be deemed guilty of a misdemeanor, and upon conviction thereof, shall be punishable by a fine and/or imprisonment set forth by the governing laws of the jurisdiction. Each separate day or

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any portion thereof, during which any violation of this code occurs or continues, shall be deemed to constitute a separate offense.

103.0 Permits and Inspections.

103.1 Permits.

103.1.1 Permits Required. It shall be unlawful for any person, firm, or corporation to make any installation, alteration, repair, replacement, or remodel any plumbing system regulated by this code except as permitted in Section 103.1.2, or to cause the same to be done without first obtaining a separate plumbing permit for each separate building or structure.

103.1.2 Exempt Work. A permit shall not be required for the following:

103.1.2.1 The stopping of leaks in drains, soil, waste, or vent pipe, provided, however, that should any trap, drainpipe, soil, waste, or vent pipe become defective and it becomes necessary to remove and replace the same with new material, the same shall be considered as new work and a permit shall be procured and inspection made as provided in this code.

103.1.2.2 The clearing of stoppages, including the removal and reinstallation of water closets, or the repairing of leaks in pipes, values, or fixtures, provided such repairs do not involve or require the replacement or rearrangement of valves, pipes, or fixtures.

Exemption from the permit requirements of this code shall not be deemed to grant authorization for any work to be done in violation of the provisions of the code or any other laws or ordinances of this jurisdiction.

103.1.3 Licensing. Provision for licensing shall be determined by the Authority Having Jurisdiction.

103.2 Application for permit.

103.2.1 Application. To obtain a permit, the applicant shall first file an application therefore in writing on a form furnished by the Authority Having Jurisdiction for that purpose. Every such application shall:

103.2.1.1 Identify and describe the work to be covered by the permit for which application is made.

103.2.1.2 Describe the land upon which the proposed work is to be done by legal description, street address, or similar description that will readily identify and definitely locate the proposed building or work.

103.2.1.3 Indicate the use or occupancy for which the proposed work is intended.

103.2.1.4 Be accompanied by plans, diagrams, computations, and other data as required in Section 103.2.2.

103.2.1.5 Be signed by the permittee or the permittee's authorized agent, who may be required to submit evidence to indicate such authority.

103.2.1.6 Give such other data and information as may be required by the Authority Having Jurisdiction.

103.2.2 Plans and Specifications. Plans, engineering calculations, diagrams, and other data shall be submitted in one (1) or more sets with each application for a permit. The Authority Having Jurisdiction shall be permitted to require plans, computations, and specifications to be prepared by, and the plumbing designed by, an engineer and/or architect licensed by the state to practice as such.

Exception: The Authority Having Jurisdiction shall be permitted to waive the submission of plans, calculations, or other data if the Authority Having Jurisdiction finds that the nature of the work applied for is such that reviewing of plans is not necessary to obtain compliance within the code.

103.2.3 Information on Plans and Specifications. Plans and specifications shall be drawn to scale upon substantial paper or cloth and shall be of sufficient clarity to indicate the location, nature, and extent of the work proposed and show in detail that it will conform to the provisions of this code and relevant laws, ordinances, rules, and regulations.

103.3 Permit Issuance.

103.3.1 Issuance. The application, plans, and specifications and other data field by an applicant for a permit shall be reviewed by the Authority Having Jurisdiction. Such plans shall be permitted to be reviewed by other departments of this jurisdiction to verify compliance with applicable laws under their jurisdiction. If the Authority Having Jurisdiction finds that the work described in an application for permitted to be reviewed by other departments of this jurisdiction to verify compliance with applicable laws under their jurisdiction. If the Authority Having Jurisdiction finds that the work described in an application for permit and the plans, specifications, and other data filed therewith conform to the requirements of the code and other pertinent laws and ordinances, and that the fees specified in Section 103.4 have been paid, the Authority Having Jurisdiction shall issue a permit therefore to the applicant.

When the Authority Having Jurisdiction issues the permit where plans are required, the Authority Having Jurisdiction shall endorse in writing or stamp the plans and specifications “APPROVED.” Such approved plans and specifications shall not be changed, modified, or altered without authorization from the Authority Having Jurisdiction, and all work shall be done in accordance with approved plans.

The Authority Having Jurisdiction shall be permitted to issue a permit for the construction of a part of a plumbing system before the entire plans and specifications for the whole system have been submitted or approved, provided adequate information and detailed statements have been filed complying with all pertinent requirements of this code. The holder of such permit shall be permitted to proceed at the holder's risk without assurance that the permit for the entire building, structure, or plumbing system will be granted.

103.3.2 Retention of Plans. One (1) set of approved plans, specifications, and computations shall be retained

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by the Authority Having Jurisdiction until final approval of the work covered therein. One (1) set of approved plans and specifications shall be returned to the applicant, and said set shall be kept on the site of the building or work at times during which the work authorized thereby is in progress.

103.3.3 Validity of Permit. The issuance of a permit or approval of plans and specifications shall not be construed to be a permit for, or an approval of, any violation of any of the provisions of this code or of any other ordinance of the jurisdiction. No permit presuming to give authority to violate or cancel the provisions of this code shall be valid.

The issuance of a permit based upon plans, specifications, or other data shall not prevent the Authority Having Jurisdiction from thereafter requiring the correction of errors in said plans, specifications, and other data or from preventing building operations being carried on thereunder when in violation of this code or of other ordinances of this jurisdiction.

103.3.4 Expiration. Every permit issued by the Authority Having Jurisdiction under the provisions of this code shall expire by limitation and become null and void if the work authorized by such permit is not commenced within one-hundred and eighty (180) days from the date of such permit, or if the work authorized by such permit is suspended or abandoned at any time after the work is commenced for a period of one-hundred and eighty (180) days. Before such work can be recommenced, a new permit shall first be obtained to do so, and the fee therefore shall be one-half (½) the amount required for a new permit for such work, provided no changes have been made or will be made in the original plans and specifications for such work, and provided further that such suspensions or abandonment has not exceeded one (1) year.

Any permittee holding an unexpired permit shall be permitted to apply for an extension of the time within which work shall be permitted to commence under that permit when the permittee is unable to commence work within the time required by this section for good and satisfactory reasons. The Authority Having Jurisdiction shall be permitted to extend the time for action by the permittee for a period not exceeding one-hundred and eighty (180) days upon written request by the permittee showing that circumstances beyond the control of the permittee have prevented action from being taken. No permit shall be extended more than once. In order to renew action on a permit after expiration, the permit fee shall pay a new full permit fee.

103.3.5 Suspension or Revocation. The Authority Having Jurisdiction shall be permitted to, in writing, suspend or revoke a permit issued under the provisions of this code whenever the permit is issued in error or on the basis of incorrect information supplied or in violation of other ordinance or regulation of the jurisdiction.

103.4 Fees.

103.4.1 Permit Fees. Fees shall be assessed in accordance with the provisions of this section and as set forth in the fee schedule Table 1-1. The fees are to be determined and adopted by this jurisdiction.

103.4.2 Plan Review Fees. When a plan or other data is required to be submitted by Section 103.2.2, a plan review fee shall be paid at the time of submitting plans and specifications for review.

The plan review fees for plumbing work shall be determined and adopted by this jurisdiction.

The plan review fees specified in this subsection are separate fees from the permit fees specified in this section and are in addition to the permit fees.

When plans are incomplete or changed so as to require additional review, a fee shall be charged at the rate shown in Table 1-1.

103.4.3 Expiration of Plan Review. Applications for which no permit is issued within one-hundred and eighty (180) days following the date of application shall expire by limitation, plans and other data submitted for review may thereafter be returned to the applicant or destroyed by the Authority Having Jurisdiction. The Authority Having Jurisdiction shall be permitted to exceed the time for action by the applicant for a period not to exceed one-hundred and eighty (180) days upon request by the applicant showing that circumstances beyond the control of the applicant have prevented action from being taken. No application shall be extended more than once. In order to renew action on an application after expiration, the applicant shall resubmit plans and pay a new plan review fee.

103.4.4 Investigation Fees: Work Without a Permit.

103.4.4.1 Whenever any work for which a permit is required by this code has been commenced without first obtaining said permit, a special investigation shall be made before a permit may be issued for such work.

103.4.4.2 An investigation fee, in addition to the permit fee, shall be collected whether or not a permit is then or subsequently issued. The investigation fee shall be equal to the amount of the permit fee that would be required by this code if a permit were to be issued. The payment of such investigation fee shall not exempt any person from compliance with other provisions of this code, nor from any penalty prescribed by law.

103.4.5 Fee Refunds.

103.4.5.1 The Authority Having Jurisdiction shall be permitted to authorize the refunding of any fee paid hereunder that was erroneously paid or collected.

103.4.5.2 The Authority Having Jurisdiction shall be permitted to authorize the refunding of not more than a percentage, as determined by this jurisdiction when no work has been done under a permit issued in accordance with this code.

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103.4.5.3 The Authority Having Jurisdiction shall not authorize the refunding of any fee paid except upon written application filed by the original permittee not to exceed one-hundred and eighty (180) days after the date of fee payment.

103.5 Inspections.

103.5.1 General. Plumbing systems for which a permit is required by this code shall be inspected by the Authority Having Jurisdiction.

No portion of any plumbing system shall be concealed until inspected and approved. Neither the Authority Having Jurisdiction nor the jurisdiction shall be liable for expense entailed in the removal or replacement of material required to permit inspection. When the installation of a plumbing system is complete, an additional and final inspection shall be made. Plumbing systems regulated by this code shall not be connected to the water, the energy fuel supply, or the sewer system until authorized by the Authority Having Jurisdiction.

103.5.1.1 Inspection. No water supply system or portion thereof shall be covered or concealed until it first has been tested, inspected, and approved.

103.5.1.2 Scope. New plumbing work and such portions of existing systems as may be affected by new work, or any changes, shall be inspected by the Authority Having Jurisdiction to ensure compliance with the requirements of this code and to ensure that the installation and construction of the plumbing system is in accordance with approved plans.

103.5.1.3 Covering or Using. No plumbing or drainage system, building sewer, private sewer disposal system, or part thereof, shall be covered, concealed, or put into use until it has been tested, inspected, and accepted as prescribed in this code.

103.5.1.4 Uncovering. If any drainage or plumbing system, building sewer, private sewage disposal system, or part thereof, which is installed, altered, or repaired, is covered or concealed before being inspected, tested, and approved as prescribed in this code, it shall be uncovered for inspection after notice to uncover the work has been issued to the responsible person by the Authority Having Jurisdiction.

103.5.2 Operation of Plumbing Equipment. The requirements of this section shall not be considered to prohibit the operation of any plumbing installed to replace existing equipment or fixtures serving an occupied portion of the building in the event a request for inspection of such equipment or fixture has been filed with the Authority Having Jurisdiction not more than seventy-two (72) hours after such replacement work is completed, and before any portion of such plumbing system is concealed by any permanent portion of the building.

103.5.3 Testing of Systems. Plumbing systems shall be tested and approved as required by this code or the Authority Having Jurisdiction.

103.5.3.1 Test. Tests shall be conducted in the presence of the Authority Having Jurisdiction or the Authority Having Jurisdiction's duly appointed representative.

103.5.3.2 Test Waived. No test or inspection shall be required where a plumbing system, or part thereof, is set up for exhibition purposes and has no connection with a water or drainage system.

103.5.3.3 Exceptions. In cases where it would be impractical to provide the required water or air tests, or for minor installations and repairs, the Authority Having Jurisdiction shall be permitted to make such inspection as deemed advisable in order to be assured that the work has been performed in accordance with the intent of this code.

103.5.3.4 Tightness. Joints and connections in the plumbing system shall be gas-tight and water-tight for the pressures required by test.

103.5.4 Inspection Requests. It shall be the duty of the person doing the work authorized by a permit to notify the Authority Having Jurisdiction that such work is ready for inspection. The Authority Having Jurisdiction shall be permitted to require that every request for inspection be filed not less than one (1) working day before such inspection is desired. Such request may be in writing or by telephone, at the option of the Authority Having Jurisdiction.

It shall be the duty of the person requesting inspections required by this code to provide access to and means for proper inspection of such work.

103.5.4.1 Advance Notice. It shall be the duty of the person doing the work authorized by the permit to notify the Authority Having Jurisdiction, orally or in writing, that said work is ready for inspection. Such notification shall be given not less than twenty-four (24) hours before the work is to be inspected.

103.5.4.2 Responsibility. It shall be the duty of the holder of a permit to make sure that the work will stand the test prescribed before giving the notification.

The equipment, material, and labour necessary for inspection or tests shall be furnished by the persons to whom the permit is issued or by whom inspection is requested.

103.5.5 Other Inspections. In addition to the inspections required by this code, the Authority Having Jurisdiction shall be permitted to require other inspections of any plumbing work to ascertain compliance with the provisions of this code and other laws that are enforced by the Authority Having Jurisdiction.

103.5.5.1 Defective Systems. An air test shall be used in testing the sanitary condition of the drainage or plumbing system of any building premises when there is reason to believe that it has become defective. In buildings or premises condemned by the proper Authority Having Jurisdiction because of an insanitary condition of the plumbing system or part thereof, the alterations in such system shall conform to the requirements of this code.

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103.5.5.2 Moved Structures. Parts of the plumbing systems of any building or part thereof that is moved from one (1) foundation to another, or from one (1) location to another, shall be completely tested as prescribed elsewhere in this section for new work, except that walls or floors need not be removed during such test when other equivalent means of inspection acceptable to the Authority Having Jurisdiction are provided.

103.5.6 Reinspections. A reinspection fee shall be permitted to be assessed for each inspection or reinspection when such portion of work for which inspection is called is not complete or when required corrections have not been made.

This provision is not to be interpreted as requiring reinspection fees the first time a job is rejected for failure to comply with the requirements of this code, but as controlling the practice of calling for inspections before the job is ready for inspection or reinspection.

Reinspection fees shall be permitted to be assessed when the approved plans are not readily available to the inspector, for failure to provide access on the date for which the inspection is requested, or for deviating from plans requiring the approval of the Authority Having Jurisdiction.

To obtain reinspection, the applicant shall file an application therefore in writing upon a form furnished for that purpose and pay the reinspection fee in accordance with Table 1-1.

In instances where inspection fees have been assessed, no additional inspection of the work will be performed until the required fees have been paid.

103.5.6.1 Corrections. Notices of correction or violation shall be written by the Authority Having Jurisdiction and shall be permitted to be posted at the site of the work or mailed or delivered to the permitted or his authorized representative.

Refusal, failure, or neglect to comply with any such notice or order within ten (10) days of receipt thereof, shall be considered a violation of this code and shall be subject to the penalties set forth elsewhere in this code for violations.

103.5.6.2 Retesting. If the Authority Having Jurisdiction finds that the work will not pass the test, necessary corrections shall be made, and the work shall then be resubmitted for test or inspection.

103.5.6.3 Approval. Upon the satisfactory completion and final test of the plumbing system, a certificate of approval shall be issued by the Authority Having Jurisdiction to the permittee on demand.

103.6 Connection Approval.

103.6.1 Energy Connections. No person shall make connections from a source of energy or fuel to any plumbing system or equipment regulated by this code and for which a permit is required until approved by the Authority Having Jurisdiction.

103.6.2 Other Connections. No person shall make connection from any water-supply line nor shall connect to any sewer system regulated by this code and for which a permit is required until approved by the Authority Having Jurisdiction.

103.6.3 Temporary Connections. The Authority Having Jurisdiction shall be permitted to authorize temporary connection of the plumbing equipment to the source of energy or fuel for the purpose of testing the equipment.

103.7 Unconstitutional.

103.7.1 If any section, subsection, sentence, clause, or phrase of this code is, for any reason, held to be unconstitutional, such decision shall not affect the validity of the remaining portions for this code. The Legislative body hereby declares that it would have passed this code, and each section, subsection, sentence, clause, or phrase thereof, irrespective of the fact that one (1) or more sections, subsections, sentences, clauses, and phrases are declared unconstitutional.

103.8 Validity.

103.8.1 If any provision of this code, or the application thereof to any person or circumstance, is held invalid, the remainder of the code, or the application of such provision to other persons or circumstances, shall not be affected thereby.

103.8.2 Wherever in this code reference is made to an appendix, the provisions in the appendix shall not apply unless specifically adopted.

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TABLE 1-1
PLUMBING PERMIT FEES
* Jurisdiction will indicate their fees here.
Permit Issuance
1. For issuing each permit*____
2. For issuing each supplemental permit*____
Unit Fee Schedule (in addition to items 1 and 2 above)
1. For each plumbing fixture on one (1) trap or a set of fixtures on one (1) trap (including water, drainage piping, and backflow protection therefore)*____
2. For each building sewer and each trailer park sewer*____
3. Rainwater systems – per drain (inside building)*____
4. For each cesspool (where permitted)*____
5. For each private sewage disposal system*____
6. For each water heater and/or vent*____
7. For each gas piping system of one (1) to five (5) outlets*____
8. For each additional gas piping system outlet, per outlet*____
9. For each industrial waste pretreatment interceptor, including its trap and vent, except kitchen-type grease interceptors functioning as fixture traps*____
10. For each installation, alteration, or repair of water piping and/or water treating equipment, each*____
11. For each repair or alteration of drainage or vent piping, each fixture*____
12. For each lawn springkler system on any one (1) meter including backflow protection devices therefore*____
13. For atmospheric-type vacuum breakers not included in item 12:
1 to 5*____
over 5, each*____
14. For each backflow protective device other than atmospheric-type vacuum breakers:
2 inch (50 mm) diameter and smaller*____
over 2 inch (50 mm) diameter*____
15. For each graywater system*____
16. For initial installation and testing for a reclaimed water system*____
17. For each annual cross-connection testing of a reclaimed water system (excluding initial test)*____
18. For each medical gas piping system serving one (1) to five (5) outlet(s) for a specific gas*____
19. For each additional medical gas inlet(s)/outlet(s)*____
Other Inspections and Fees
1. Inspections outside of normal business hours*____
2. Reinspection fee*____
3. Inspections for which no fee is specifically indicated*____
4. Additional plan review required by changes, additions, or revisions to approved plans (minimum charge - one-half (½) hour)*____

25

26

CALIFORNIA PLUMBING CODE – MATRIX ADOPTION TABLE
CHAPTER 2 - DEFINITIONS
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
The state agency does not adopt sections identified by the following symbol:†
Adopt Entire ChapterXX    XX         
Adopt Entire Chapter as amended (amended sections listed below)  XXX   XXXX     
Adopt only those sections that are listed below             X   
Chapter/Section                 
203.0  XX             
204.0  XX             
205.0    X        X   
206.0  XXX            
207.0  XXX            
208.0             X   
210.0        XXXX     
214.0  XX             
216.0  XX             
221.0        XXXX     
221.0 Single Family Dwelling              
222.0  XX    XXXX     
223.0  XX         X   
225.0  XX             

27

28

CHAPTER 2
DEFINITIONS

201.0 General.

For the purpose of this code, the following terms have the meanings indicated in this chapter.

No attempt is made to define ordinary words, which are used in accordance with their established dictionary meanings, except where a word has been used loosely and it is necessary to define its meaning as used in this code to avoid misunderstanding.

The definitions of terms are arranged alphabetically according to the first word of the term.

202.0 Definition of Terms.

203.0 –A–

ABS. Acrylonitrile-butadiene-styrene.

Accessible. When applied to a fixture, connection, appliance, or equipment, “accessible” means having access thereto, but which first may require the removal of an access panel, door, or similar obstruction. “Readily accessible” means direct access without the necessity of removing any panel, door, or similar obstruction.

Airbreak. A physical separation which may be a low inlet into the indirect waste receptor from the fixture, appliance, or device indirectly connected.

Airgap, Drainage. The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe, plumbing fixture, appliance, or appurtenance conveying waste to the flood-level rim of the receptor.

Airgap, Water Distribution. The unobstructed vertical distance through the free atmosphere between the lowest opening from any pipe or faucet conveying potable water to the flood-level rim of any tank, vat, or fixture.

Anchors. See Supports.

Approved. Acceptable to the Authority Having Jurisdiction.

Exception: [HCD 1 & HCD 2] “Approved” means meeting the approval of the Enforcing Agency, except as otherwise provided by law, when used in connection with any system, material, type of construction, fixture or appliance as the result of investigations and tests conducted by the agency, or by reason of accepted principles or tests by national authorities, or technical, health, or scientific organizations or agencies.

Notes:

  1. See Health and Safety Code Section 17920 for “Approved” as applied to residential construction and buildings or structures accessory thereto as referenced in Section 1.8.2.
  2. See Health and Safety Code Section 17921.1 for “Approved” as applied to the use of the hotplates in residential construction as referenced in Section 1.8.2.
  3. See Health and Safety Code Section 17921.3 for “Approved” as applied to low-flush water closets in residential construction as referenced in Section 1.8.2.
  4. See Health and Safety Code 19966 for “Approved” as applied to Factory-Built Housing as referenced in Section 1.8.3.2.5.
  5. See Health and Safety Code Section 18201 for “Approved” as applied to Mobilehome Parks as referenced in Section 1.8.2.
  6. See Health and Safety Code Section 18862.1 for “Approved” as applied to Special Occupancy Parks as referenced in Section 1.8.2.

Approved Testing Agency. An organization primarily established for purposes of testing to approved standards and approved by the Authority Having Jurisdiction.

[HCD 1 & HCD 2] “Approved Testing Agency” is any agency which is determined by the enforcing agency, except as otherwise provided by statue, to have adequate personnel and expertise to carry out the testing of systems, materials, and construction fixtures or appliances.

Area Drain. A receptor designed to collect surface or storm water from an open area.

Aspirator. A fitting or device supplied with water or other fluid under positive pressure that passes through an integral orifice or constriction, causing a vacuum.

Authority Having Jurisdiction. The organization, office, or individual responsible for enforcing the requirements of a code or standard, or for approving equipment, materials, installations, or procedures. The Authority Having Jurisdiction shall be a federal, state, local, or other regional department or an individual such as a plumbing official, mechanical official, labor department official, health department official, building official, or others having statutory authority. In the absence of a statutory authority, the Authority Having Jurisdiction may be some other responsible party. This definition shall include the Authority Having Jurisdiction’s duly authorized representative.

[HCD 1 & HCD 2] “Authority Having Jurisdiction” shall mean “Enforcing Agency” as defined in Section 207.0 of this code.

204.0 –B–

Backflow. The flow of water or other liquids, mixtures, or substances into the distributing pipes of a potable supply of water from any sources other than its intended source. See Back-Siphonage, Back-Pressure Backflow.

Backflow Connection. Any arrangement whereby backflow can occur.

29

Back-Pressure Backflow. Backflow due to an increased pressure above the supply pressure, which may be due to pumps, boilers, gravity, or other sources of pressure.

Backflow Preventer. A device or means to prevent backflow into the potable water system.

Back-Siphonage. The flowing back of used, contaminated, or polluted water from a plumbing fixture or vessel into a water supply pipe due to a pressure less than atmospheric in such pipe. See Backflow.

Backwater Valve. A device installed in a drainage system to prevent reverse flow.

Bathroom Group. A group of fixtures consisting of a water closet, one or two lavatories, and either a bathtub, a combination bath/shower, or a shower and may include a urinal or bidet and an emergency floor drain.

Bathroom, Half. A room equipped with only a water closet and lavatory.

Battery of Fixtures. Any group of two (2) or more similar, adjacent fixtures that discharge into a common horizontal waste or soil branch.

Boiler Blowoff. An outlet on a boiler to permit emptying or discharge of sediment.

Branch. Any part of the piping system other than a main, riser, or stack.

Branch, Fixture. See Fixture Branch.

Branch, Horizontal. See Horizontal Branch.

Branch Vent. A vent connecting one (1) or more individual vents with a vent stack or stack vent.

Building. A structure built, erected, and framed of component structural parts designed for the housing, shelter, enclosure, or support of persons, animals, or property of any kind.

Exceptions: [HCD 1 & HCD 2] “BUILDING” shall not include the following:

  1. Any mobilehome as defined in Health and Safety Code Section 18008.
  2. Any manufactured home as defined in Health and Safety Code Section 18007.
  3. Any commercial modular as defined in Health and Safety Code Section 18001.8 or any special purpose commercial modular as defined in Section 18012.5.
  4. Any recreational vehicle as defined in Section Health and Safety Code 18010.
  5. Any multifamily manufactured home as defined in Health and Safety Code Section 18008.7.

For additional information, see Health and Safety Code Section 18908.

Building Drain. That part of the lowest piping of a drainage system that receives the discharge from soil, waste, and other drainage pipes inside the walls of the building and conveys it to the building sewer beginning two (2) feet (610 mm) outside the building wall.

Building Drain (Sanitary). A building drain that conveys sewage only.

Building Drain (Storm). A building drain that conveys storm water or other drainage, but no sewage.

Building Sewer. That part of the horizontal piping of a drainage system that extends from the end of the building drain and that receives the discharge of the building drain and conveys it to a public sewer, private sewer, private sewage disposal system, or other point of disposal.

Building Sewer (Combined). A building sewer that conveys both sewage and storm water or other drainage.

Building Sewer (Sanitary). A building sewer that conveys sewage only.

Building Sewer (Storm). A building sewer that conveys storm water or other drainage, but no sewage.

Building Subdrain. That portion of a drainage system that does not drain by gravity into the building sewer.

Building Supply. The pipe carrying potable water from the water meter or other source of water supply to a building or other point of use or distribution on the lot. Building supply shall also mean water service.

205.0 –C–

Certified Backflow Assembly Tester. A person who has shown competence to test and maintain backflow assemblies to the satisfaction of the Authority Having Jurisdiction.

Cesspool. A lined excavation in the ground that receives the discharge of a drainage system or part thereof, so designed as to retain the organic matter and solids discharging therein, but permitting the liquids to seep through the bottom and sides.

Chemical Waste. See Special Wastes.

Clarifier. See Interceptor.

Clear Water Waste. Cooling water and condensate drainage from refrigeration and air-conditioning equipment; cooled condensate from steam heating systems; and cooled boiler blowdown water.

Clinic Sink. A sink designed primarily to receive wastes from bedpans and having a flush rim, an integral trap with a visible trap seal, and the same flushing and cleansing characteristics as a water closet.

Code. A standard that is an extensive compilation of provisions covering broad subject matter or that is suitable for adoption into law independently of other codes and standards.

Combination Thermostatic/Pressure Balancing Valve. A mixing valve that senses outlet temperature and incoming hot and cold water pressure and compensates for fluctuations in to stabilize outlet temperatures.

Combination Waste and Vent System. A specially designed system of waste piping embodying the horizontal wet venting of one or more sinks or floor drains by means of a common waste and vent pipe, adequately sized to provide free movement of air above the flow line of the drain.

Combined Building Sewer. See Building Sewer (Combined).

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Commissaries Serving Mobile Food Preparation Units [DPH]. A food establishment in which food, containers, equipment or supplies are stored or handled for use in vehicles, mobile food preparation units, food carts or vending machines.

Common. That part of a plumbing system that is so designed and installed as to serve more than one (1) appliance, fixture, building, or system.

Conductor. A pipe inside the building that conveys storm water from the roof to a storm drain, combined building sewer, or other approved point of disposal.

Confined Space. A room or space having a volume less than fifty (50) cubic feet per 1,000 Btu/h (1.4 m3/293 W) of the aggregate input rating of all fuel-burning appliances installed in that space.

Contamination. An impairment of the quality of the potable water that creates an actual hazard to the public health through poisoning or through the spread of disease by sewage, industrial fluids, or waste. Also defined as High Hazard.

Continuous Vent. A vertical vent that is a continuation of the drain to which it connects.

Continuous Waste. A drain connecting the compartments of a set of fixtures to a trap or connecting other permitted fixtures to a common trap.

Covered Multifamily Dwellings [HCD 1-AC]. See Section 1.8.2.1.2.

CPVC. Chlorinated Poly (Vinyl Chloride).

Critical Level. The critical level (C-L or C/L) marking on a backflow prevention device or vacuum breaker is a point conforming to approved standards and established by the testing laboratory (usually stamped on the device by the manufacturer) that determines the minimum elevation above the flood level rim of the fixture or receptor served at which the device may be installed. When a backflow prevention device does not bear a critical level marking, the bottom of the vacuum breaker, combination valve, or the bottom of any such approved device shall constitute the critical level.

Cross-Connection. Any connection or arrangement, physical or otherwise, between a potable water supply system and any plumbing fixture or any tank, receptor, equipment, or device, through which it may be possible for nonpotable, used, unclean, polluted, and contaminated water, or other substances to enter into any part of such potable water system under any condition.

206.0 –D–

Department [HCD 1, HCD 2 & HCD 1-AC]. “Department” means the Department of Housing and Community Development.

Department Having Jurisdiction. The Authority Having Jurisdiction, including any other law enforcement agency affected by any provision of this code, whether such agency is specifically named or not.

[HCD 1 & HCD 2] “Department Having Jurisdiction” shall mean “Enforcing Agency” as defined in Section 207.0 of this code.

Design Flood Elevation. The elevation of the “design flood,” including wave height, relative to the datum specified on the community’s legally designated flood hazard map.

Developed Length. The length along the center line of a pipe and fittings.

Diameter. Unless specifically stated, “diameter” is the nominal diameter as designated commercially.

Domestic Sewage. The liquid and water-borne wastes derived from the ordinary living processes, free from industrial wastes, and of such character as to permit satisfactory disposal, without special treatment, into the public sewer or by means of a private sewage disposal system.

Downspout. The rain leader from the roof to the building storm drain, combined building sewer, or other means of disposal located outside of the building. See Conductor and Leader.

Drain. Any pipe that carries waste or waterborne wastes in a building drainage system.

Drainage System. Includes all the piping within public or private premises that conveys sewage or other liquid wastes to a legal point of disposal, but does not include the mains of a public sewer system or a public sewage treatment or disposal plant.

Durham System. A soil or waste system in which all piping is threaded pipe, tubing, or other such rigid construction, using recessed drainage fittings to correspond to the types of piping.

207.0 –E–

Effective Opening. The minimum cross-sectional area at the point of water supply discharge measured or expressed in terms of (1) diameter of a circle or (2) if the opening is not circular, the diameter of a circle of equivalent cross-sectional area. (This is applicable also to airgap.)

Enforcing Agency [HCD 1, HCD 2 & HCD 1-AC]. “Enforcing Agency” is the designated department or agency as specified by statute or regulation.

Essentially Nontoxic Transfer Fluid. Essentially nontoxic at practically nontoxic, Toxicity Rating Class 1 (reference “Clinical Toxicology of Commercial Products” by Gosselin, Smith, Hodge, & Braddock).

Excess Flow Valve (EFV). A valve designed to activate when the fuel gas passing through it exceeds a prescribed flow rate.

Existing Work. A plumbing system or any part thereof that has been installed prior to the effective date of this code.

208.0 –F–

Fixture Branch. A water supply pipe between the fixture supply pipe and the water distributing pipe.

31

Fixture Drain. The drain from the trap of a fixture to the junction of that drain with any other drain pipe.

Fixture Supply. A water supply pipe connecting the fixture with the fixture branch.

Fixture Unit. A quantity in terms of which the load-producing effects on the plumbing system of different kinds of plumbing fixtures are expressed on some arbitrarily chosen scale.

Flammable Vapor or Fumes. The concentration of flammable constituents in air that exceeds 25 percent of its lower flammability limit (LFL).

Flood Hazard Area. The greater of the following two areas:

  1. The area within a floodplain subject to a one (1) percent or greater chance of flooding in any given year.
  2. The area designated as a flood hazard area on a community’s flood hazard map, or otherwise legally designated.

Flood Hazard Area Subject to High Velocity Wave Action. Area within the flood hazard area that is subject to high velocity wave action, and shown on a Flood Insurance Rate Map or other flood hazard map as Zone V, VO, VE or V1-30.

Flood Level. See Flooded.

Flood-Level Rim. The top edge of a receptor from which water overflows.

Flooded. A fixture is flooded when the liquid therein rises to the flood-level rim.

Flush Tank. A tank located above or integral with water closets, urinals, or similar fixtures for the purpose of flushing the usable portion of the fixture.

Flush Valve. A valve located at the bottom of a tank for the purpose of flushing water closets and similar fixtures.

Flushometer Tank. A tank integrated within an air accumulator vessel that is designed to discharge a predetermined quantity of water to fixtures for flushing purposes.

Flushometer Valve. A valve that discharges a predetermined quantity of water to fixtures for flushing purposes and is actuated by direct water pressure.

FOG Disposal System. A grease interceptor that reduces nonpetroleum fats, oils, and grease (FOG) in effluent by separation, mass and volume reduction.

Food Establishment [DPH]. Any room, building, place or portion thereof, maintained, used or operated for purpose of storing, preparing, serving, packaging, transporting, salvaging or otherwise handling food at the retail level.

209.0 –G–

Gang or Group Shower. Two (2) or more showers in a common area.

Grade. The slope or fall of a line of pipe in reference to a horizontal plane. In drainage, it is usually expressed as the fall in a fraction of an inch (mm) or percentage slope per foot (meter) length of pipe.

Gravity Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oils, and greases (FOG) from a wastewater discharge and is identified by volume, thirty (30) minute retention time, baffle(s), not less than two (2) compartments, a total volume of not less than three-hundred (300) gallons, and gravity separation. [These interceptors comply with the requirements of Chapter 10 or are designed by a registered professional engineer.] Gravity grease interceptors are generally installed outside.

Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and greases (FOG) from a wastewater discharge.

Grease Removal Device (GRD). Any hydro-mechanical grease interceptor that automatically, mechanically removes non-petroleum fats, oils and grease (FOG) from the interceptor, the control of which are either automatic or manually initiated.

210.0 –H–

Handwashing Fixture [OSHPD 1, 2, 3 & 4]. Is a special application sink having a water supply spout mounted so the discharge point is at least 5 inches (127 mm) above the fixture rim and equipped with hot and cold supply controls not requiring direct contact of the hands for operation. The fixture can not be equipped with an aerator and wrist or elbow blade handles but may be equipped with a non-aerating laminar flow device. Sensor operated fixtures may be used, provided they are either battery operated or connected to the essential electrical system. Deck-mounted manual temperature controls shall be permitted.

Hangers. See Supports.

High Hazard. See Contamination.

Horizontal Branch. A drain pipe extending laterally from a soil or waste stack or building drain with or without vertical sections or branches, which receives the discharge from one (1) or more fixture drains and conducts it to the soil or waste stack or to the building drain.

Horizontal Pipe. Any pipe or fitting that is installed in a horizontal position or which makes an angle of less than forty five (45) degrees with the horizontal.

Hot Water. Water at a temperature exceeding or equal to 120°F (49°C).

House Drain. See Building Drain.

House Sewer. See Building Sewer.

Hydromechanical Grease Interceptor. A plumbing appurtenance or appliance that is installed in a sanitary drainage system to intercept nonpetroleum fats, oil, and grease (FOG) from a wastewater discharge and is identified by flow rate, and separation and retention efficiency. The design incorporates air entrainment, hydromechanical separation, interior baffling, and/or barriers in combination or separately, and one of the following:

  1. –External flow control, with air intake (vent): directly connected
  2. –External flow control, without air intake (vent): directly connected32
  3. –Without external flow control, directly connected
  4. –Without external flow control, indirectly connected

[These interceptors comply with the requirements of Table 10-2.] Hydromechanical grease interceptors are generally installed inside.

211.0 –I–

Indirect Waste Pipe. A pipe that does not connect directly with the drainage system but conveys liquid wastes by discharging into a plumbing fixture, interceptor, or receptacle that is directly connected to the drainage system.

Individual Vent. A pipe installed to vent a fixture trap and that connects with the vent system above the fixture served or terminates in the open air.

Industrial Waste. Any and all liquid or water-borne waste from industrial or commercial processes, except domestic sewage.

Insanitary. A condition that is contrary to sanitary principles or is injurious to health.

Conditions to which “insanitary” shall apply include the following:

  1. Any trap that does not maintain a proper trap seal.
  2. Any opening in a drainage system, except where lawful, that is not provided with an approved liquid-sealed trap.
  3. Any defective fixture, trap, pipe, or fitting.
  4. Any trap, except where in this code exempted, directly connected to a drainage system, the seal of which is not protected against siphonage and back-pressure by a vent pipe.
  5. Any connection, cross-connection, construction, or condition, temporary or permanent, that would permit or make possible by any means whatsoever for any unapproved foreign matter to enter a water distribution system used for domestic purposes.
  6. The foregoing enumeration of conditions to which the term “insanitary” shall apply, shall not preclude the application of that term to conditions that are, in fact, insanitary.

Interceptor (Clarifier). A device designed and installed so as to separate and retain deleterious, hazardous, or undesirable matter from normal wastes and permit normal sewage or liquid wastes to discharge into the disposal terminal by gravity.

Invert. The lowest portion of the inside of a horizontal pipe.

212.0 –J–

Joint, Brazed. Any joint obtained by joining of metal parts with alloys that melt at temperatures exceeding 840°F (449°C), but less than the melting temperature of the parts to be joined.

Joint, Soldered. A joint obtained by the joining of metal parts with metallic mixtures or alloys that melt at a temperature up to and including 840°F (449°C).

213.0 –K–

No definitions

214.0 –L–

Labeled. Equipment or materials bearing a label of a listing agency (accredited conformity assessment body). See Listed (third-party certified).

[HCD 1 & HCD 2] “Labeled” means equipment or materials to which has been attached a label, symbol or other identifying mark of an organization, approved by the Department, that maintains a periodic inspection program of production of labeled products, installations, equipment, or materials and by whose labeling the manufacturer indicates compliance with appropriate standards or performance in a specified manner.

Lavatory [HCD 1 & HCD 2]. “Lavatory” shall mean a plumbing fixture used for washing the hands, arms, face and head.

Lavatories in Sets. Two (2) or three (3) lavatories that are served by one (1) trap.

Leader. An exterior vertical drainage pipe for conveying storm water from roof or gutter drains. See Downspout.

Limited-Density Owner-Built Dwelling [HCD 1]. “Limited-Density Owner-Built Dwelling” shall mean any structure consisting of one or more habitable rooms intended or designed to be occupied by one family with facilities for living or sleeping, with use restricted to rural areas designated by local jurisdiction in compliance with the requirements of Health and Safety Code Section 17958.2.

Liquid Waste. The discharge from any fixture, appliance, or appurtenance in connection with a plumbing system that does not receive fecal matter.

Listed [HCD 1 & HCD 2]. “Listed” means all products that appear in a list published by an approved testing or listing agency. For additional information, see Health and Safety Code Section 17920(h).

Listed (Third-party certified). Equipment or materials included in a list published by a listing agency (accredited conformity assessment body) that maintains periodic inspection on current production of listed equipment or materials and whose listing states either that the equipment or material complies with approved standards or has been tested and found suitable for use in a specified manner.

Listing Agency. An agency accredited by an independent and authoritative conformity assessment body to operate a material and product listing and labeling (certification) system and that is accepted by the Authority Having Jurisdiction, which is in the business of listing or labeling. The system includes initial and ongoing product testing, a periodic inspection on current production of listed (certified) products, and makes available a published report of such listing in which specific information is included that the material or product conforms to applicable standards and found safe for use in a specific manner.

33

[HCD 1 & HCD 2] “Listing Agency” means an agency approved by the department that is in the business of listing and labeling products, materials, equipment, and installations tested by an approved testing agency, and that maintains a periodic inspection program on current production of listed products, equipment, and installations, and that, at least annually, makes available a published report of these listings. For additional information, see Health and Safety Code Section 17920(i).

Lot. A single or individual parcel or area of land legally recorded or validated by other means acceptable to the Authority Having Jurisdiction on which is situated a building or which is the site of any work regulated by this code, together with the yards, courts, and unoccupied spaces legally required for the building or works, and that is owned by or is in the lawful possession of the owner of the building or works.

Low Hazard. See Pollution.

Low VOC Cement [HCD 1 & HCD 2]. Cement with a volatile organic compound (VOC) content of less than or equal to 490 g/L for CPVC Cement, 510 g/L for PVC Cement, and 325 g/L for ABS Cement, as determined by the South Coast Air Quality Management District’s Laboratory Methods of Analysis for Enforcement Samples, Method 316A.

Low VOC One-Step Cement [HCD 1 & HCD 2]. Listed solvent cements that do not require the use of primer with a volatile organic compound (VOC) content of less than or equal to 490 g/L for CPVC Cement, 510 g/L for PVC Cement, and 325 g/L for ABS Cement, as determined by the South Coast Air Quality Management District’s Laboratory Methods of Analysis for Enforcement Samples, Method 316A.

Low VOC Primer [HCD 1 & HCD 2]. Primer with a volatile organic compound (VOC) content of less than or equal to 550 g/L, as determined by the South Coast Air Quality Management District’s Laboratory Methods of Analysis for Enforcement Samples, Method 316A.

215.0 –M–

Macerating Toilet System. A system comprised of a sump with macerating pump and with connections for a water closet and other plumbing fixtures, which is designed to accept, grind, and pump wastes to an approved point of discharge.

Main. The principal artery of any system of continuous piping to which branches may be connected.

Main Sewer. See Public Sewer.

Main Vent. The principal artery of the venting system to which vent branches may be connected.

May. A permissive term.

Mobile Home Park Sewer. That part of the horizontal piping of a drainage system that begins two (2) feet (610 mm) downstream from the last mobile home site and conveys it to a public sewer, private sewer, private sewage disposal system, or other point of disposal.

216.0 –N–

Nonwater Supplied Urinal (Waterless Urinal) [HCD 1 & HCD 2]. A plumbing fixture which does not require water supply and is designed to receive and convey the uninhibited flow of liquid waste to the gravity drainage system.

Nuisance. Includes, but is not limited to:

  1. Any public nuisance known at common law or in equity jurisprudence.
  2. Whenever any work regulated by this code is dangerous to human life or is detrimental to health and property.
  3. Inadequate or unsafe water supply or sewage disposal system.

[HCD 1 & HCD 2] “Nuisance” shall mean any nuisance as defined in Health and Safety Code Section 17920(k).

Notes:

  1. For applications subject to the Mobilehome Parks Act as referenced in Section 1.8.3.2.2 of this code, refer to California Code of Regulations, Title 25, Division 1, Chapter 2 for the definition of “Nuisance”
  2. For applications subject to the Special Occupancy Parks Act as referenced in Section 1.8.3.2.3 of this code, refer to California Code of Regulations, Title 25, Division 1, Chapter 2.2 for the definition of “Nuisance”

217.0 –O–

Offset. A combination of elbows or bends in a line of piping that brings one (1) section of the pipe out of line but into a line parallel with the other section.

Oil Interceptor. See Interceptor.

218.0 –P–

PB. Polybutylene.

PE. Polyethylene.

PE-AL-PE. Polyethylene-aluminum-polyethylene.

PEX. Cross-linked polyethylene.

PEX-AL-PEX. Cross-linked polyethylene–aluminum-cross-linked polyethylene.

Person. A natural person, his heirs, executor, administrators, or assigns and shall also include a firm, corporation, municipal or quasi-municipal corporation, or governmental agency. Singular includes plural, male includes female.

Pipe. A cylindrical conduit or conductor conforming to the particular dimensions commonly known as “pipe size.”

Plumbing. The business, trade, or work having to do with the installation, removal, alteration, or repair of plumbing systems or parts thereof.

Plumbing Appliance. Any one (1) of a special class of devices or equipment that is intended to perform a special plumbing function. Its operation and/or control may be dependent upon one (1) or more energized components, such as motors, controls, heating elements, or pressure- or temperature-sensing elements. Such device or equipment may operate automatically through one (1) or more of the following actions: a time cycle, a temperature range, a pressure range, a measured volume or

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weight; or the device or equipment may be manually adjusted or controlled by the user or operator.

Plumbing Appurtenance. A manufactured device, a prefabricated assembly, or an on-the-job assembly of component parts that is an adjunct to the basic piping system and plumbing fixtures. An appurtenance demands no additional water supply, nor does it add any discharge load to a fixture or the drainage system. It performs some useful function in the operation, maintenance, servicing, economy, or safety of the plumbing system.

Plumbing Fixture. An approved-type installed receptacle, device, or appliance that is supplied with water or that receives liquid or liquid-borne wastes and discharges such wastes into the drainage system to which it may be directly or indirectly connected. Industrial or commercial tanks, vats, and similar processing equipment are not plumbing fixtures, but may be connected to or discharged into approved traps or plumbing fixtures when and as otherwise provided for elsewhere in this code.

Plumbing Official. See Authority Having Jurisdiction.

Plumbing System. Includes all potable water, building supply, and distribution pipes; all plumbing fixtures and traps; all drainage and vent pipes; and all building drains and building sewers, including their respective joints and connections, devices, receptors, and appurtenances within the property lines of the premises and shall include potable water piping, potable water treating or using equipment, medical gas and medical vacuum systems, liquid and fuel gas piping, and water heaters and vents for same.

Pollution. An impairment of the quality of the potable water to a degree that does not create a hazard to the public health but which does adversely and unreasonably affect the aesthetic qualities of such potable water for domestic use. Also defined as Low Hazard.

Potable Water. Water that is satisfactory for drinking, culinary, and domestic purposes and that meets the requirements of the Health Authority Having Jurisdiction.

PP. Polypropylene.

Pressure. The normal force exerted by a homogeneous liquid or gas, per unit of area, on the wall of the container.

Static Pressure. The pressure existing without any flow.

Residual Pressure. The pressure available at the fixture or water outlet after allowance is made for pressure drop due to friction loss, head, meter, and other losses in the system during maximum demand periods.

Pressure-Balancing Valve. A mixing valve that senses incoming hot and cold water pressures and compensates for fluctuations in either to stabilize outlet temperature.

Private or Private Use. Applies to plumbing fixtures in residences and apartments, to private bathrooms in hotels and hospitals, and to restrooms in commercial establishments where the fixtures are intended for the use of a family or an individual.

Private Sewage Disposal System. A septic tank with the effluent discharging into a subsurface disposal field, into one (1) or more seepage pits, or into a combination of subsurface disposal field and seepage pit or of such other facilities as may be permitted under the procedures set forth elsewhere in this code.

Private Sewer. A building sewer that receives the discharge from more than one (1) building drain and conveys it to a public sewer, private sewage disposal system, or other point of disposal.

Public or Public Use. Applies to plumbing fixtures that are not defined as private or private use.

Public Sewer. A common sewer directly controlled by public authority.

PVC. Poly(vinyl chloride).

PVDF. Polyvinylidene Fluoride.

219.0 –Q–

No definitions

220.0 –R–

Receptor. An approved plumbing fixture or device of such material, shape, and capacity as to adequately receive the discharge from indirect waste pipes, so constructed and located as to be readily cleaned.

Regulating Equipment. Includes all valves and controls used in a plumbing system that are required to be accessible or readily accessible.

Relief Vent. A vent, the primary function of which is to provide circulation of air between drainage and vent systems or to act as an auxiliary vent on a specially designed system.

Remote Outlet. When used for sizing water piping, it is the furthest outlet dimension, measuring from the meter, either the developed length of the cold-water piping or through the water heater to the furthest outlet on the hot-water piping.

Rim. See Flood-Level Rim.

Riser. A water supply pipe that extends vertically one (1) full story or more to convey water to branches or fixtures.

Roof Drain. A drain installed to receive water collecting on the surface of a roof and to discharge it into a leader, down spout, or conductor.

Roughing-In. The installation of all parts of the plumbing system that can be completed prior to the installation of fixtures. This includes drainage, water supply, gas piping, vent piping, and the necessary fixture supports.

221.0 –S–

Sand Interceptor. See Interceptor.

Scrub Sink [OSHPD 1, 2, 3 & 4]. Is a sink used to wash and scrub the hands and arms during the septic preparation for surgery and equipped with a supply spout and controls as required for a handwashing fixture. Deck-mounted manual temperature controls shall be permitted.

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SDR. An abbreviation for “standard dimensional ratio,” which is the specific ratio of the average specified outside diameter to the minimum wall thickness for outside controlled diameter plastic pipe.

Seepage Pit. A lined excavation in the ground which receives the discharge of a septic tank so designed as to permit the effluent from the septic tank to seep through its bottom and sides.

Septic Tank. A water-tight receptacle that receives the discharge of a drainage system or part thereof, designed and constructed so as to retain solids, digest organic matter through a period of detention, and allow the liquids to discharge into the soil outside of the tank through a system of open joint piping or a seepage pit meeting the requirements of this code.

Sewage. Any liquid waste containing animal or vegetable matter in suspension or solution and that may include liquids containing chemicals in solution.

Sewage Ejector. A device for lifting sewage by entraining it on a high-velocity jet stream, air, or water.

Sewage Pump. A permanently installed mechanical device, other than an ejector, for removing sewage or liquid waste from a sump.

Shall. Indicates a mandatory requirement.

Shielded Coupling. An approved elastomeric sealing gasket with an approved outer shield and a tightening mechanism.

Shock Arrester. See Water Hammer Arrester.

Should. Indicates a recommendation or that which is advised but not required.

Single-Family Dwelling. A building designed to be used as a home by the owner of such building, which shall be the only dwelling located on a parcel of ground with the usual accessory buildings.

Size and Type of Tubing. See Diameter.

Slip Joint. An adjustable tubing connection, consisting of a compression nut, a friction ring, and a compression washer, designed to fit a threaded adapter fitting or a standard taper pipe thread.

Slope. See Grade.

Soil Pipe. Any pipe that conveys the discharge of water closets, urinals, clinic sinks, or fixtures having similar functions of collection and removal of domestic sewage, with or with-out the discharge from other fixtures, to the building drain or building sewer.

Special Wastes. Wastes that require some special method of handling, such as the use of indirect waste piping and receptors, corrosion-resistant piping, sand, oil or grease interceptors, condensers, or other pretreatment facilities.

Stack. The vertical main of a system of soil, waste, or vent piping extending through one (1) or more stories.

Stack Vent. The extension of a soil or waste stack above the highest horizontal drain connected to the stack.

Standard. A document, the main text of which contains only mandatory provisions using the word “shall” to indicate requirements and which is in a form generally suitable for mandatory reference by another standard or code or for adoption into law. Nonmandatory provisions shall be located in an appendix, footnote, or fine print note and are not to be considered a part of the requirements of a standard.

Storm Drain. See Building Drain (Storm).

Storm Sewer. A sewer used for conveying rainwater, surface water, condensate, cooling water, or similar liquid wastes.

Subsoil Drain. A drain that collects subsurface or seepage water and conveys it to a place of disposal.

Sump. An approved tank or pit that receives sewage or liquid waste and which is located below the normal grade of the gravity system and which must be emptied by mechanical means.

Supports. Supports, hangers, and anchors are devices for properly supporting and securing pipe, fixtures, and equipment.

222.0 –T–

Tailpiece. The pipe or tubing that connects the outlet of a plumbing fixture to a trap.

Testing Agency [HCD 1 & HCD 2]. See “Approved Testing Agency”.

Thermostatic (Temperature Control) Valve. A mixing valve that senses outlet temperature and compensates for fluctuations in incoming hot or cold water temperatures.

Toilet [OSHPD 1, 2, 3 & 4]. A fixture within a toilet room which is used for defection or urination.

Toilet Room [OSHPD 1, 2, 3 & 4]. A room within or on the premises containing water closets, urinals, and other required facilities.

Trap. A fitting or device so designed and constructed as to provide, when properly vented, a liquid seal that will prevent the back passage of air without materially affecting the flow of sewage or wastewater through it.

Trap Arm. That portion of a fixture drain between a trap and the vent.

Trap Primer. A device and system of piping that maintains a water seal in a remote trap.

Trap Seal. The vertical distance between the crown weir and the top dip of the trap.

Crown Weir (Trap Weir) –The lowest point in the cross-section of the horizontal waterway at the exit of the trap.

Top Dip (of trap). The highest point in the internal cross-section of the trap at the lowest part of the bend (inverted siphon). By contrast, the bottom dip is the lowest point in the internal cross-section.

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223.0 –U–

Unconfined Space. A room or space having a volume equal to not less than fifty (50) cubic feet per 1,000 Btu/h (1.4 m3/293 W) of the aggregate input rating of all fuel-burning appliances installed in that space. Rooms communicating directly with the space in which the appliances are installed, through openings not furnished with doors, are considered a part of the unconfined space.

Unsanitary. See Insanitary.

UPC [HCD 1 & HCD 2, DPH]. “UPC” is the latest edition of the Uniform Plumbing Code, published by the International Association of Plumbing and Mechanical Officials.

224.0 –V–

Vacuum. Any pressure less than that exerted by the atmosphere.

Vacuum Breaker. See Backflow Preventer.

Vacuum Relief Valve. A device that prevents excessive vacuum in a pressure vessel.

Vent. Any pipe provided to ventilate a plumbing system, to prevent trap siphonage and back-pressure, or to equalize the air pressure within the drainage system.

Vent Pipe. See Vent.

Vent Stack. The vertical vent pipe installed primarily for the purpose of providing circulation of air to and from any part of the drainage system.

Vent System. A pipe or pipes installed to provide a flow of air to or from a drainage system or to provide a circulation of air within such system to protect trap seals from siphonage and back-pressure.

Vented Flow Control Device. A device installed upstream from the hydromechanical grease interceptor having an orifice that controls the rate of flow through the interceptor, and an air intake (vent) downstream from the orifice, which allows air to be drawn into the flow stream.

Vertical Pipe. Any pipe or fitting that is installed in a vertical position or that makes an angle of not more than 45 degrees with the vertical.

225.0 –W–

Wall-Hung Water Closet. A water closet installed in such a way that no part of the water closet touches the floor.

Waste. See Liquid Waste and Industrial Waste.

Waste Pipe. A pipe that conveys only liquid waste, free of fecal matter.

Water Closet [HCD 1 & HCD 2]. “Water Closet” is a plumbing fixture (which may be used for both solids and liquids) in which the waste matter is removed by flushing with water.

Water-Conditioning or Treating Device. A device that conditions or treats a water supply so as to change its chemical content or remove suspended solids by filtration.

Water-Distributing Pipe. In a building or premises, a pipe that conveys potable water from the building supply pipe to the plumbing fixtures and other water outlets.

Water Hammer Arrester. A device designed to provide protection against hydraulic shock in the building water supply system.

Water Main (Street Main). A water supply pipe for public or community use.

Water Supply System. The building supply pipe, the water distributing pipes, and the necessary connecting pipes, fittings, control valves, backflow prevention devices, and all appurtenances carrying or supplying potable water in or adjacent to the building or premises.

Welded Joint or Seam. Any joint or seam obtained by the joining of metal parts in the plastic molten state.

Welder, Pipe. A person who specializes in the welding of pipes and holds a valid certificate of competency from a recognized testing laboratory, based on the requirements of the ASME Boiler and Pressure Vessels code, Section IX.

Wet Vent. A vent that also serves as a drain.

Whirlpool Bathtub. A bathtub fixture equipped and fitted with a circulating piping system designed to accept, circulate, and discharge bathtub water upon each use.

226.0 –X–

No definitions.

227.0 –Y–

Yoke Vent. A pipe connecting upward from a soil or waste stack to a vent stack for the purpose of preventing pressure changes in the stacks.

228.0 –Z–

No definitions.

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38

CALIFORNIA PLUMBING CODE-MATRIX ADOPTION TABLE
CHAPTER 3 – GENERAL REGULATIONS
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
The state agency does not adopt sections identified by the following symbol: †
Adopt Entire Chapter      XX         
Adopt Entire Chapter as amended (amended sections listed below)XXXX    XXXX     
Adopt only those sections that are listed below                 
Chapter/Section                 
301.2  XX             
301.2.1               
301.2.1.1               
301.2.1.2               
301.5  XX             
303.0 Exception  X              
304.0 Exception  X              
311.9        XXXX     
311.10        X XX     
311.11 X               
311.12        XX X     
316.1.6  XX             
316.1.8        XXXX     
316.1.9        XXXX     
316.2.4  XX    XXXX     
320.0        XXXX     

39

40

CHAPTER 3
GENERAL REGULATIONS

301.0 Materials – Standards and Alternates.

301.1 Minimum Standards.

301.1.1 Approvals. All pipe, pipe fittings, traps, fixtures, material, and devices used in a plumbing system shall be listed or labeled (third-party certified) by a listing agency (accredited conformity assessment body) and shall conform to approved applicable recognized standards referenced in this code, and shall be free from defects. Unless otherwise provided for in this code, all materials, fixtures, or devices used or entering into the construction of plumbing systems, or parts thereof, shall be submitted to the Authority Having Jurisdiction for approval.

301.1.2 Marking. Each length of pipe and each pipe fitting, trap, fixture, material, and device used in a plumbing system shall have cast, stamped, or indelibly marked on it the manufacturer’s mark or name, which shall readily identify the manufacturer to the end user of the product. When required by the approved standard that applies, the product shall be marked with the weight and the quality of the product. Materials and devices used or entering into the construction of plumbing and drainage systems, or parts thereof, shall be marked and identified in a manner satisfactory to the Authority Having Jurisdiction. Such marking shall be done by the manufacturer. Field markings shall not be acceptable.

301.1.3 Standards. Standards listed or referred to in this chapter or other chapters cover materials that will conform to the requirements of this code, when used in accordance with the limitations imposed in this or other chapters thereof and their listing. Where a standard covers materials of various grades, weights, quality, or configurations, there may be only a portion of the listed standard that is applicable. Design and materials for special conditions or materials not provided for herein shall be permitted to be used only by special permission of the Authority Having Jurisdiction after the Authority Having Jurisdiction has been satisfied as to their adequacy. A list of accepted plumbing materials standards is included in Table 14-1. IAPMO Installation Standards are included in Appendix I for the convenience of the users of this code. They are not considered as a part of this code unless formally adopted as such by the Authority Having Jurisdiction.

301.1.4 Existing Buildings. In existing buildings or premises in which plumbing installations are to be altered, repaired, or renovated, the Authority Having Jurisdiction has discretionary powers to permit deviation from the provisions of this code, provided that such proposal to deviate is first submitted for proper determination in order that health and safety requirements, as they pertain to plumbing, shall be observed.

301.2 Alternate Materials and Methods of Construction Equivalency. Nothing in this code is intended to prevent the use of systems, methods, or devices of equivalent or superior quality, strength, fire resistance, effectiveness, durability, and safety over those prescribed by this code. Technical documentation shall be submitted to the Authority Having Jurisdiction to demonstrate equivalency. The Authority Having Jurisdiction shall have the authority to approve or disapprove the system, method or device for the intended purpose. [HCD 1 & HCD 2] (See Section 1.8.7).

However, the exercise of this discretionary approval by the Authority Having Jurisdiction shall have no effect beyond the jurisdictional boundaries of said Authority Having Jurisdiction. Any alternate material or method of construction so approved shall not be considered as conforming to the requirements and⁄or intent of this code for any purpose other than that granted by the Authority Having Jurisdiction when the submitted data does not prove equivalency.

301.2.1 Testing. The Authority Having Jurisdiction shall have the authority to require tests, as proof of equivalency.

301.2.1.1 Tests shall be made in accordance with approved or applicable standards, by an approved testing agency at the expense of the applicant. In the absence of such standards, the Authority Having Jurisdiction shall have the authority to specify the test procedure.

301.2.1.2 The Authority Having Jurisdiction shall have the authority to require tests to be made or repeated if, at any time, there is reason to believe that any material or device no longer conforms to the requirements on which its approval was based.

301.3 Flood Hazard Resistance.

301.3.1 General. Plumbing systems shall be located above the design flood elevation.

Exception: Plumbing systems are permitted to be located below the design flood elevation provided that the systems are designed and installed to prevent water from entering or accumulating within their components and the systems are constructed to resist hydrostatic and hydrodynamic loads and stresses, including the effects of buoyancy, during the occurrence of flooding to the design flood elevation.

301.3.2 Flood Hazard Areas Subject to High- Velocity Wave Action. Plumbing systems in buildings located in flood hazard areas subject to high-velocity wave action shall meet the requirements of Section 301.3.1, and plumbing systems, pipes, and fixtures shall not be mounted on or penetrate through walls that are intended to breakaway under flood loads as required by the Building Code.

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301.4 Alternative Engineered Design.

301.4.1 Design Criteria. An alternative engineered design shall conform to the intent of the provisions of this code and shall provide an equivalent level of quality, strength, effectiveness, fire resistance, durability, and safety. Material, equipment, or components shall be designed and installed in accordance with the manufacturer’s installation instructions.

301.4.2 Permit Application. The registered professional engineer shall indicate on the design documents that the plumbing system, or parts thereof, is an alternative engineered design so that it is noted on the construction permit application. The permit and permanent permit records shall indicate that an alternative engineered design was part of the approved installation.

301.4.3 Technical Data. The registered professional engineer shall submit sufficient technical data to substantiate the proposed alternative engineered design and to prove that the performance meets the intent of this code.

301.4.4 Design Documents. The registered professional engineer shall provide two (2) complete sets of signed and sealed design documents for the alternative engineered design for submittal to the Authority Having Jurisdiction. The design documents shall include floor plans and a riser diagram of the work. Where appropriate, the design documents shall indicate the direction of flow, pipe sizes, grade of horizontal piping, loading, and location of fixtures and appliances.

301.4.5 Design Approval. Any approval of an alternative engineered design shall be at the discretion of the Authority Having Jurisdiction. The exercise of this discretionary approval by the Authority Having Jurisdiction shall have no effect beyond the Jurisdictional boundaries of said Authority Having Jurisdiction. Any alternative engineered design so approved shall not be considered as conforming to the requirements and/or intent of this code for any purpose other than that granted by the Authority Having Jurisdiction.

301.4.6 Design Review. The Authority Having Jurisdiction shall have the authority to require testing of the alternative engineered design in accordance to Section 301.2.1, including the authority to require an independent review of the design documents by a registered professional engineer selected by the Authority Having Jurisdiction and at the expense of the applicant.

301.4.7 Inspection and Testing. The alternative engineered design shall be tested and inspected in accordance with the submitted testing and inspection plan and the requirements of this code.

301.5 One- and Two-Family Dwellings. [HCD 1 & HCD 2] The provisions contained in this code shall not apply to one and two-family dwelling private sewage disposal systems and minimum plumbing facilities when alternate facilities or installations have been approved by the local health authority, provided that such alternative facilities or installations provide substantially equivalent or greater protection to health and safety.

302.0 Iron Pipe Size (IPS) Pipe.

Iron, steel, brass, and copper pipe shall be standard- weight iron pipe size (IPS) pipe.

303.0 Disposal of Liquid Waste.

It shall be unlawful for any person to cause, suffer, or permit the disposal of sewage, human excrement, or other liquid wastes, in any place or manner, except through and by means of an approved drainage system, installed and maintained in accordance with the provisions of this code.

Exception: [HCD 1] Limited-density owner-built rural dwellings. A water closet shall not be required when an alternate system is provided and has been approved by the local health official. Where an alternative to the water closet is installed, a system for the disposal or treatment of graywater shall be provided to the dwelling. Graywater systems shall be designed according to water availability, use and discharge. The design, use and maintenance standards of such systems shall be the prerogative of the local health official.

304.0 Connections to Plumbing System Required.

Plumbing fixtures, drains, appurtenances, and appliances, used to receive or discharge liquid wastes or sewage, shall be connected properly to the drainage system of the building or premises, in accordance with the requirements of this code.

Exception: [HCD 1] Limited-density owner-built rural dwellings. Where conventional plumbing, in all or in part, is installed within the structure, it shall be installed in accordance with the provisions of this code. Alternative materials and methods shall be permitted provided that the design complies with the intent of the code, and that such alternatives shall perform to protect health and safety for the intended purpose.

305.0 Sewers Required.

305.1 Every building in which plumbing fixtures are installed shall have a connection to a public or private sewer except as provided in Section 305.2.

305.2 When a public sewer is not available for use, drainage piping from buildings and premises shall be connected to an approved private sewage disposal system.

305.3 In cities and/or counties where the installation of building sewers is under the jurisdiction of a department other than the Authority Having Jurisdiction, the provisions of this code relating to building sewers need not apply.

306.0 Damage to Drainage System or Public Sewer.

306.1 It shall be unlawful for any person to deposit, by any means whatsoever, into any plumbing fixture, floor drain, interceptor, sump, receptor, or device, which is connected to any drainage system, public sewer, private sewer, septic tank, or cesspool, any ashes; cinders; solids; rags; inflammable, poisonous, or explosive liquids or gases; oils; grease; or any other thing whatsoever that would, or could, cause damage to the drainage system or public sewer.

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306.2 Roofs, inner courts, vent shafts, light wells, or similar areas having rainwater drain, shall discharge to the outside of the building or to the gutter and shall not be connected to the sanitary drainage system unless first approved by the Authority Having Jurisdiction.

307.0 Industrial Wastes.

307.1 Wastes detrimental to the public sewer system or detrimental to the functioning of the sewage treatment plant shall be treated and disposed of as found necessary and directed by the Authority Having Jurisdiction.

307.2 Sewage or other waste from a plumbing system that may be deleterious to surface or subsurface waters shall not be discharged into the ground or into any waterway unless it has first been rendered safe by some acceptable form of treatment as required by the Authority Having Jurisdiction.

308.0 Location.

308.1 Except as otherwise provided in this code, no plumbing system, drainage system, building sewer, private sewage disposal system, or parts thereof shall be located in any lot other than the lot is the site of the building, structure, or premises served by such facilities.

308.2 No subdivision, sale, or transfer of ownership of existing property shall be made in such manner that the area, clearance, and access requirements of this code are decreased.

309.0 Improper Location.

Piping, fixtures, or equipment shall not be so located as to interface with the normal use thereof or with the normal operation and use of windows, doors, or other required facilities.

310.0 Workmanship.

310.1 Design, construction, and workmanship shall be in conformity with accepted engineering practices and shall be of such character as to secure the results sought to be obtained by this code.

310.2 It is unlawful to conceal cracks, holes, or other imperfections in materials by welding, brazing, or soldering or by using therein or thereon any paint, wax, tar, solvent cement, other leak-sealing or repair agent.

310.3 Burred ends of pipe and tubing shall be reamed to the full bore of the pipe or tube, and chips shall be removed.

310.4 Installation Practices. Plumbing systems shall be installed in a manner conforming to this code, applicable standards, and the manufacturer’s installation instructions. In instances where the code, applicable standards, or the manufacturer’s instructions conflict, the more stringent provisions shall prevail.

311.0 Prohibited Fittings and Practices.

311.1 No double hub fitting, single or double tee branch, single or double tapped tee branch, side inlet quarter bend, running thread, band, or saddle shall be used as a drainage fitting, except that a double hub sanitary tapped tee shall be permitted to be used on a vertical line as a fixture connection.

311.2 No drainage or vent piping shall be drilled and tapped for the purpose of making connections thereto, and no cast-iron soil pipe shall be threaded.

311.3 No waste connection shall be made to a closet bend or stub of a water closet bend or stub of a water closet or similar fixture.

311.4 Except as hereinafter provided in Sections 908.0, 909.0, and 910.0, no vent pipe shall be used as a soil or waste pipe, nor shall any soil or waste pipe be used as a vent. Also, single-stack drainage and venting systems with unvented branch lines are prohibited.

311.5 No fitting, fixture and piping connection, appliance, device, or method of installation that obstructs or retards the flow of water, wastes, sewage, or air in the drainage or venting systems, in an amount exceeding the normal frictional resistance to flow, shall be used unless it is indicated as acceptable in this code or is approved per Section 301.1 of this code. The enlargement of a three (3) inch (80 mm) closet bend or stub to four (4) inches (100 mm) shall not be considered an obstruction.

311.6 Except for necessary valves, where inter-membering or mixing of dissimilar metals occurs, the point of connection shall be confined to exposed or accessible locations.

311.7 Valves, pipes, and fittings shall be installed in correct relationship to the direction of flow.

311.8 Screwed Fittings. Screwed fittings shall be ABS, cast-iron, copper, copper alloy, malleable iron, PVC, steel, or other approved materials. Threads shall be tapped out of solid metal or molded in solid ABS or PVC.

311.9 [OSHPD 1, 2, 3 & 4] Drainage piping over operating and delivery rooms, nurseries, food preparation centers, food-serving facilities, food storage areas, and other sensitive areas shall be kept to a minimum and shall not be exposed. Special precautions shall be taken to protect these areas from possible leakage from necessary overhead drainage piping systems. Piping over switchboards, panel boards, and motor control centers are subject to restrictions of the California Electrical Code where applicable.

311.10 [OSHPD 1, 3 & 4] Floor drains shall not be installed in operating and delivery rooms. Floor drains with self-priming traps may be installed in cystoscopic rooms.

311.11 [SFM] For applications listed in Section 1.11.0 regulated by the Office of the State Fire Marshal, plastic piping shall not be exposed as a portion of the interior room finish in a building or structure if the piping has a flame-spread rating exceeding 75 when tested in accordance with ASTM E 84-77a,“Test for Surface Burning Characteristics of Building Materials.”

311.12 [OSHPD 1, 2 & 4] Services/Systems and Utilities. Refer to Section 1224.4.1, California Building Code.

312.0 Independent Systems.

The drainage system of each new building and of new work installed in any existing building shall be separate and independent from that of any other building, and, when available,

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every building shall have an independent connection with a public or private sewer.

Exception: Where one (1) building stands in the rear of another building on an interior lot, and no private sewer is available or can be constructed to the rear building through an adjoining court, yard, or driveway, the building drain from the front building shall be permitted to be extended to the rear building.

313.0 Protection of Piping, Materials, and Structures.

313.1 Piping passing under or through walls shall be protected from breakage. Piping passing through or under cinders or other corrosive materials shall be protected from external corrosion in an approved manner. Approved provisions shall be made for expansion of hot water piping. Voids around piping passing through concrete floors on the ground shall be appropriately sealed.

313.2 Piping in connection with a plumbing system shall be so installed that piping or connections will not be subject to undue strains or stresses, and provisions shall be made for expansion, contraction, and structural settlement. No plumbing piping shall be directly embedded in concrete or masonry. No structural member shall be seriously weakened or impaired by cutting, notching, or otherwise, as defined in the Building Code.

313.3 No building sewer or other drainage piping or part thereof, constructed of materials other than those approved for use under or within a building, shall be installed under or within two (2) feet (610 mm) of any building or structure, or less than one (1) foot (305 mm) below the surface of the ground.

313.4 Piping subject to corrosion, erosion, or mechanical damage shall be protected in an approved manner.

313.5 Protectively Coated Pipe. Protectively coated pipe shall be inspected and tested, and any visible void, damage, or imperfection to the pipe coating shall be repaired to comply with Section 313.0.

313.6 No water, soil, or waste pipe shall be installed or permitted outside of a building or in an exterior wall unless, where necessary, adequate provision is made to protect such pipe from freezing.

313.7 Piping penetrations of fire-resistance-rated walls, partitions, floors, floor/ceiling assemblies, roof/ceiling assemblies, or shaft enclosures shall be protected in accordance with the requirements of the Building Code.

313.8 Waterproofing of Openings. Joints at the roof around pipes, ducts, or other appurtenances shall be made water-tight by the use of lead, copper, galvanized iron, or other approved flashings or flashing material. Exterior wall openings shall be made water-tight. Counterflashing shall not restrict the required internal cross-sectional area of the vent.

313.9 Plastic and copper piping penetrating a framing members to within one (1) inch (25.4 mm) of the exposed framing shall be protected by steel nail plates not less than No. 18 gauge (0.0478 inches) (1.2 mm) in thickness. The steel nail plate shall extend along the framing member not less than one and one-half (1½) inches (38 mm) beyond the outside diameter of the pipe or tubing.

Exception: See Section 1211.3.4.

313.10 Sleeves.

313.10.1 Sleeves shall be provided to protect piping through concrete and masonry walls and concrete floors.

Exception: Sleeves shall not be required where openings are drilled or bored.

313.10.2 Piping through concrete or masonry walls shall not be subject to any load from building construction.

313.10.3 In exterior walls, annular space between sleeves and pipes shall be sealed and made water-tight, as approved by the Authority Having Jurisdiction. Any penetration through fire-resistive construction shall be in accordance with Section 313.7.

313.10.4 Any pipe sleeve through a firewall shall have the space around the pipe completely sealed with an approved fire-resistive material in accordance with other codes.

313.11 Any structural member weakened or impaired by cutting, notching, or otherwise shall be reinforced, repaired, or replaced so as to be left in a safe structural condition in accordance with the requirements of the Building Code.

313.12 Ratproofing.

313.12.1 Strainer plates on drain inlets shall be designed and installed so that no opening is exceeding one-half (½) inch (12.7 mm) in the least dimension.

313.12.2 Meter boxes shall be constructed in such a manner that rats cannot enter a building by following the service pipes from the box into the building.

313.12.3 In or on buildings where openings have been made in walls, floors, or ceilings for the passage of pipes, such openings shall be closed and protected by the installation of approved metal collars securely fastened to the adjoining structure.

313.12.4 Tub waste openings in framed construction to crawl spaces at or below the first floor shall be protected by the installation of approved metal collars or metal screen securely fastened to the adjoining structure with no opening exceeding one-half (½) inch (12.7 mm) in the least dimension.

314.0 Hangers and Supports.

314.1 Suspended piping shall be supported at intervals not to exceed those shown in Table 3-2.

314.2 Piping shall be supported in such a manner as to maintain its alignment and prevent sagging.

314.3 Piping in the ground shall be laid on a firm bed for its entire length; where other support is otherwise provided, it shall be approved per Section 301.0 of this code.

314.4 Hangers and anchors shall be of sufficient strength to support the weigth of the pipe and its contents. Piping shall be isolated from incompatible materials.

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314.5 Piping, fixtures, appliances, and appurtenances shall be adequately supported in accordance with this code, the manufacturer’s installation instructions, and as required by the Authority Having Jurisdiction.

314.6 Hanger rod sizes shall be no smaller than those shown in Table 3-1.

314.7 Gas piping shall be supported by metal straps or hooks at intervals not to exceed those shown in Table 12-3.

TABLE 3-1
HANGER ROD SIZES
PIPE AND TUBE SIZEROD SIZE
(inches)mm(inches)mm
½ – 415 – 1003⁄89.5
6 – 8150 – 200½12.7
10 – 12250 – 3005⁄815.9

315.0 Trenching, Excavation, and Backfill.

315.1 Trenches deeper than the footing of any building or structure and paralleling the same shall be not less than 45 degress (0.79 rad) therefrom, or as approved per Section 301.0 of this code.

315.2 Tunneling and driving shall be permitted to be done in yards, courts, or driveways of any building site. Where sufficient depth is available to permit, tunnels shall be permitted to be used between open-cut trenches. Tunnels shall have a clear height of two (2) feet (610 mm) above the pipe and shall be limited in length to one-half (½) the depth of the trench, with a maximum length of eight (8) feet (2438 mm). When pipes are driven, the drive pipe shall be not less than one (1) size larger than the pipe to be laid.

315.3 Open Trenches. Excavations required to be made for the installation of a building drainage system or any part thereof, within the walls of a building, shall be open trench work and shall be kept open until the piping has been inspected, tested, and accepted.

315.4 Excavations shall be completely backfilled as soon after inspection as practicable. Adequate precaution shall be taken to ensure proper compactness of backfill around piping without damage to such piping. Trenches shall be backfilled in thin layers to twelve (12) inches (305 mm) above the top of the piping with clean earth, which shall not contain stones, boulders, cinderfill, frozen earth, construction debris, or other materials that would damage or break the piping or cause corrosive action. Mechanical devices such as bulldozers, graders, etc., shall be permitted to then be used to complete backfill to grade. Fill shall be properly compacted. Suitable precautions shall be taken to ensure permanent stability for pipe laid in filled or made ground.

316.0 Joints and Connections.

316.1 Types of Joints.

316.1.1 Threaded Joints. Threads on iron pipe size (IPS) pipe and fittings shall be standard taper pipe threads in accordance with standards listed in Table 14-1. Threads on tubing shall be approved types. Threads on plastic pipe shall be factory cut or molded. Threaded plastic pipe shall be Schedule 80 minimum wall thickness. Tubing threads shall conform to fine tubing thread standards. When a pipe joint material is used, it shall be applied only on male threads, and such materials shall be approved types, insoluble in water and nontoxic. Cleanout plugs and caps shall be lubricated with water-insoluble, nonhardening material or tape. Thread tape or thread lubricants and sealants specifically intended for use with plastic shall be used on plastic threads. Conventional pipe thread compounds, putty, linseed-oil-based products, and unknown lubricants and sealants shall not be used on plastic threads.

316.1.2 Wiped Joints. Joints in lead pipe or fittings or between lead pipe or fittings and brass or copper pipe, ferrules, solder nipples, or traps shall be full-wiped joints. Wiped joints shall have an exposed surface on each side of a joint not less than three-fourths (¾) inch (19.1 mm) and not less than as thick as the material being joined. Wall or floor flange lead-wiped joints shall be made by using a lead ring or flange placed behind the joint at the wall or floor. Joints between lead pipe and cast-iron, steel, or wrought iron shall be made by means of a caulking ferrule or soldering nipple.

316.1.3 Soldered Joints. Joints in copper tubing shall be made by the appropriate use of approved copper or copper alloy fittings. Surfaces to be joined by soldering shall be cleaned bright by manual or mechanical means.

The joints shall be properly fluxed with an approved type flux and made up with approved solder. Solder and fluxes shall be manufactured to approved standards. Solders and fluxes with a lead content that exceeds two-tenths (0.02) of one (1) percent shall be prohibited in piping systems used to convey potable water.

316.1.4 Flared Joints. Flared joints for soft copper tubing shall be made with fittings meeting approved standards. The tubing shall be reamed to the full inside diameter, resized to round, and expanded with a proper flaring tool.

316.1.5 Flexible Compression Factory-Fabricated Joints. Where pipe is joined by means of flexible compression joints, such joints shall conform to approved standards and shall not be considered as slip joints.

316.1.6 Solvent Cement Plastic Pipe Joints. Plastic pipe and fittings designed to be joined by solvent cementing shall comply with applicable standards referenced in Table 14-1.

ABS pipe and fittings shall be cleaned and then joined with solvent cement(s).

CPVC pipe and fittings shall be cleaned and then joined with listed primer(s) and solvent cement(s).

Exceptions:

  1. Listed solvent cements that do not require the use of primer shall be permitted for use with CPVC pipe and fittings, manufactured in accordance with ASTM D 2846, Standard for Chlorinated Poly Plastic Hot- and Cold-Water Distribution Systems, one-half (½) inch (15 mm) through two (2) inches (50 mm) in diameter.45
  2. [HCD 1 & HCD 2] Low VOC One-Step Cement that does not require the use of primer shall be utilized with CPVC pipe and fittings, manufactured in accordance with ASTM D 2846, Standard for Chlorinated Poly Plastic Hot-and Cold-Water Distribution Systems, ½ inch through 2 inches in diameter.

PVC pipe and fittings shall be cleaned and joined with primer(s) and solvent cement(s).

A solvent cement transition joint between ABS and PVC building drain and building sewer shall be made using a listed transition solvent cement.

[HCD 1 & HCD 2] Plastic pipe and fittings joined with solvent cement shall utilize Low VOC primer(s), if a primer is required, and Low VOC solvent cement(s) as defined in Section 214.0.

316.1.7 Brazing and Welding. Brazing and welding shall conform to the applicable standard(s) in Table 14-1. Only brazing alloys having a liquid temperature above 1000°F (538°C) shall be used. Brazing on medical gas systems shall be performed by certified installers meeting the requirements of ASME Boiler and Pressure Vessel Code, Section IX, Welding and Brazing Qualifications, or AWS B2.2, Standard for Brazing Procedure and Performance Qualifications.

316.1.8 [Not permitted for OSHPD 1, 2, 3 & 4] Pressure-Lock-Type Connection. This is a mechanical connection that depends on an internal retention device to prevent pipe or tubing separation. Connection is made by inserting the pipe or tubing into the fitting to a prescribed depth.

316.1.9 [Not permitted for OSHPD 1, 2, 3 & 4] Pressed Fitting. This is a mechanical connection for joining copper tubing that uses a crimping tool to affix the O-ring seal copper or copper alloy fitting to the tubing. The tubing shall be inserted into the fitting, and the crimp shall be made using the tool recommended by the manufacturer.

316.1.10 Push-fit Fitting. A mechanical fitting where the connection is assembled by pushing the tube or pipe into the fitting and is sealed with an “O“ ring.

316.1.11 Heat Fusion Weld Joints. This type of joint is used in some thermoplastic systems to connect pipe to fittings or pipe lengths directly to one another (butt-fusion). This method of joining pipe to fittings includes socket-fusion, electro-fusion, and saddle-fusion. This method of welding involves the application of heat and pressure to the components, allowing them to fuse together forming a bond between the pipe and fitting.

316.2 Special Joints.

316.2.1 Copper Tubing to Screw Pipe Joints. Joints from copper tubing to threaded pipe shall be made by the use of brass adapter fittings. The joint between the copper tubing and the fitting shall be a soldered brazed flared, or pressed joint and the connection between the threaded pipe and the fitting shall be made with a standard pipe size screw joint. Solder shall conform to the requirements of Section 316.1.3. Brazed joints shall conform to the requirements of Section 316.1.7. Flared joints shall conform to the requirements of Section 316.1.4. Pressed joints shall conform to the requirements of Section 316.1.9.

316.2.2 Unions. Approved unions shall be permitted to be used in drainage piping when accessibly located in the trap seal or between a fixture and its trap in the vent system, except underground or in wet vents, at any point in the water supply system, and in gas piping as permitted by Section 1211.3.2(4).

316.2.3 Plastic Pipe to Other Materials. When connecting plastic pipe to other types of piping, only approved types of fittings and adapters designed for the specific transition intended shall be used.

316.2.4 Dielectric Unions. [HCD 1 & HCD 2, OSHPD 1, 2, 3 & 4] Dielectric unions shall be used at all points of connection where there is a dissimilarity of metals.

316.3 Flanged Fixture Connections.

316.3.1 Fixture connections between drainage pipes and water closets, floor outlet service sinks and urinals shall be made by means of approved brass, hard lead, ABS, PVC, or iron flanges caulked, soldered, solvent cemented; rubber compression gaskets; or screwed to the drainage pipe. The connection shall be bolted with an approved gasket, washer, or setting compound between the fixture and the connection. The bottom of the flange shall be set on an approved firm base.

316.3.2 Closet bends or stubs shall be cut off so as to present a smooth surface even with the top of the closet ring before rough inspection is called.

316.3.3 Wall-mounted water closet fixtures shall be securely bolted to an approved carrier fitting. The connecting pipe between the carrier fitting and the fixture shall be an approved material and designed to accommodate an adequately sized gasket. Gasket material shall be neoprene, felt, or similar approved types.

316.4 Prohibited Joints and Connections.

316.4.1 Drainage System. Any fitting or connection that has an enlargement, chamber, or recess with a ledge, shoulder, or reduction of pipe area that offers an obstruction to flow through the drain shall be prohibited.

316.4.2 No fitting or connection that offers abnormal obstruction to flow shall be used. The enlargement of a three (3) inch (80 mm) closet bend or stub to four (4) inches (100 mm) shall not be considered an obstruction.

317.0 Increasers and Reducers.

Where different sizes of pipes and fittings are to be connected, the proper size increasers or reducers or reducing fittings shall be used between the two sizes. Brass or cast-iron body cleanouts shall not be used as a reducer or adapter from castiron drainage pipe to iron pipe size (IPS) pipe.

318.0 Food-Handling Establishments.

Food or drink shall not be stored, prepared, or displayed beneath soil or drain pipes, unless those areas are protected

46

against leakage or condensation from such pipes reaching the food or drink as described below. Where building design requires that soil or drain pipes be located over such areas, the installation shall be made with the least possible number of joints and shall be installed so as to connect to the nearest adequately sized vertical stack with the provisions as follows:

318.1 Openings through floors over such areas shall be sealed water-tight to the floor construction.

318.2 Floor and shower drains installed above such areas shall be equipped with integral seepage pans.

318.3 Soil or drain pipes shall be of an approved material as listed in Table 14-1 and Section 701.0. Materials shall conform to established standards. Cleanouts shall be extended through the floor construction above.

318.4 Piping subject to operation at temperatures that will form condensation on the exterior of the pipe shall be thermally insulated.

318.5 Where pipes are installed in ceilings above such areas, the ceiling shall be of the removable type, or shall be provided with access panels in order to form a ready access for inspection of piping.

319.0 Test Gauges.

Tests required by this code, which are performed utilizing dial gauges, shall be limited to gauges having the following pressure graduations or incrementations.

319.1 Required pressure tests of ten (10) psi (69 kPa) or less shall be performed with gauges of one-tenth of a pound (0.10) (0.7 kPa) incrementation or less.

319.2 Required pressure tests exceeding ten (10) pounds (69 kPa) but less than or equal to one-hundred (100) psi (689 kPa) shall be performed with gauges of one (1) psi (6.9 kPa) incrementation or less.

319.3 Required pressure tests exceeding one-hundred (100) psi (689 kPa) shall be performed with gauges incremented for two (2) percent or less of the required test pressure.

319.4 Test gauges shall have a pressure range not exceeding twice the test pressure applied.

320.0 [Not permitted for OSHPD 1, 2, 3 & 4] Medical Gas and Vacuum Systems.

Such piping shall be installed, tested, and verified in compliance with the applicable standards referenced in Table 14-1 and the requirements of Chapter 13. The Authority Having Jurisdiction shall require evidence of the competency of the installers and verifiers.

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TABLE 3-2
HANGERS AND SUPPORT
MATERIALSTYPES OF JOINTSHORIZONTALVERTICAL
1 Support adjacent to joint, a maximum of eighteen (18) inches (457 mm).
2 Brace at a maximum of forty (40) feet (12 192 mm) intervals to prevent horizontal movement.
3 Support at each horizontal branch connection.
4 Hangers shall not be placed on the coupling.
5 Vertical water lines shall be permitted to be supported in accordance with recognized engineering principles with regard to expansion and contraction, when first approved by the Authority Having Jurisdiction.
6 See the appropriate IAPMO Installation Standard for expansion and other special requirements.
CastLead and Oakum5 feet (1524 mm), except 10 feet (3048 mm) where 10 foot lengths (3048 mm) are installed1,2,3Base and each floor not to exceed 15 feet (4572 mm)
Compression GasketEvery other joint, unless over 4 feet (1219 mm), then support each joint1,2,3Base and each floor a maximum of 15 feet (4572 mm)
Cast-Iron HublessShielded CouplingEvery other joint, unless over 4 feet (1219 mm), then support each joint1,2,3,4Base and each floor a maximum of 15 feet (4572 mm)
Copper Tube and PipeSoldered or Brazed1½ inches (40 mm) and smaller, 6 feet (1829 mm), 2 inches (50 mm) and larger, 10 feet (3048 mm)Each floor, a maximum of 10 feet (3048 mm)5
Steel and Brass Pipe for Water or DWVThreaded or Welded¾ inch (20 mm) and smaller, 10 feet (3048 mm), 1 inch (25 mm) and larger, 12 feet (3658 mm)Every other floor, a maximum of 25 feet (7620 mm)5
Steel, Brass, and Tinned Copper Pipe for GasThreaded or Welded½inch (15 mm), 6 feet (1829 mm), ¾ inch (20 mm) and 1 inch (25 mm), 8 feet (2438 mm), 1¼ inch (32 mm) and larger, 10 feet (3048 mm)½ inch (15 mm), 6 feet (1829 mm), ¾ inch (20 mm) and 1 inch (25 mm), 8 feet (2438 mm), 1¼ (32 mm) every floor level
Schedule 40 PVC and ABS DWVSolvent CementedAll sizes, 4 feet (1219 mm), Allow for expansion every 30 feet (9144 mm),3,6Base and each floor, Provide midstory guides. Provide for expansion every 30 feet (9144 mm).6
CPVCSolvent Cemented1 inch (25 mm) and smaller, 3 feet (914 mm), 1¼ inch (32 mm) and larger, 4 feet (1219 mm)Base and each floor Provide midstory guides.6
LeadWiped or BurnedContinuous SupportA maximum of 4 feet (1219 mm)
CopperMechanicalIn accordance with standards acceptable to the Authority Having Jurisdiction
Steel and BrassMechanicalIn accordance with standards acceptable to the Authority Having Jurisdiction
PEXMetal Insert and Metal Compression32 inches (813 mm)Base and each floor. Provide mid-story guides.
PEX-AL-PEXMetal Insert and Metal Compression½ inch (15 mm)
¾ inch (20 mm)
1 inch (25 mm) } All sizes 98 inches (2489 mm)
Base and each floor. Provide mid-story guides.
PE-AL-PEMetal Insert and Metal Compression½ inch (15 mm)
¾ inch (20 mm)
1 inch (25 mm) } All sizes 98 inches (2489 mm)
Base and each floor. Provide mid-story guides.
Polypropylene (PP)Fusion weld (socket, butt, saddle, electrofusion), threaded (metal threads only), or mechanical1 inch (25 mm) and smaller, 32 inches (813 mm); 1¼ inches (32 mm) and larger, 4 feet (1219 mm)Base and each floor. Provide mid-story guides.

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CALIFORNIA PLUMBING CODE - MATRIX ADOPTION TABLE
CHAPTER 4 - PLUMBING FIXTURES AND FIXTURE FITTINGS
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
The state agency does not adopt sections identified by the following sysmbol: †
Adopt Entire Chapter                 
Adopt Entire Chapter as amended (amended sections listed below)X XX  XXXXXX XX X
Adopt only those sections that are listed below    XX      X    
Chapter/Section
Note Under Title     X           
402.1 & subsections  XX             
402.2 & subsections  XX             
402.3 & subsections  XX             
402.3.4        XXXX     
406.5  XX             
406.5.1             X   
407.6    X            
411.6 Exception    X            
411.7 Exceptions 3    X            
412.1        XXXX     
412.1.1     X           
412.3               
412.3.1        XXXX     
412.5               
412.6               
412.7                X
412.8                X
412.9             X   
412.10             XX  
413.0    X            
Table 4-1X XXX XXXXXX    X
Table AX     XX         
Table 4-1 Footnote 18X XX XXXXXXX     
Table 4-2X       XXXX     
Table 4-3X             X  
Table 4-4X            X   

49

50

CHAPTER 4
PLUMBING FIXTURES AND FIXTURE FITTINGS

Note: In addition the requirements of this chapter, which provide access to, or egress from, buildings or facilities where accessibility is required for applications listed in Section 109, of the California Building Code, regulated by the Division of the State Architect-Access Compliance shall also comply with Chapter 11A for public housing and Chapter 11B for public accommodations under authority cited by Gov. Code §4450 and in reference cited by Gov. Code §4450 through 4461, 12955.1 and H&SC §18949.1, 19952 through 19959.

401.0 Materials–General Requirements.

401.1 Quality of Fixtures. Plumbing fixtures shall be constructed of dense, durable, non-absorbent materials and shall have smooth, impervious surfaces, free from unnecessary concealed fouling surfaces. Except as permitted elsewhere in this code, fixtures shall conform in quality and design to nationally recognized applicable standards included in Table 14-1.

401.2 Lead. Sheet lead shall be not less than the following: For safe pans not less than four (4) pounds per square foot (19.5 kg/m2) or one-sixteenth (1/16) of an inch (1.6 mm) thick (See Table 14-1).

401.3 Plumbing fixture fittings covered under the scope of NSF 61, Standard for Drinking Water System Components, shall comply with the requirements of NSF 61, Standard for Drinking Water System Components.

402.0 Water-Conserving Fixtures and Fittings.

402.1 Flush volumes for low-consumption and water-saver water closets and urinals shall be in accordance with applicable standards referenced in Table 14-1. [HCD 1 & HCD 2] Flow rates for shower heads and faucets shall meet the requirements of this section and applicable standards referenced in Table 14-1.

402.1.1 Shower Heads [HCD 1 & HCD 2] Shower heads shall be designed and installed so that they will not exceed a water supply flow rate of 2.5 gallons (9.4 liters) per minute measured at 80 psi.

402.1.2 Faucets [HCD 1 & HCD 2] Faucets at kitchens, lavatories, wetbars, laundry sinks, or other similar use fixtures shall be designed and manufactured so that they will not exceed a water supply flow rate of 2.2 gallons (8.3 liters) per minute measured at 60 psi.

402.2 Water Closets. Water closets, either flush tank, flushometer tank, or flushometer valve operated, shall have an average consumption of a maximum of 1.6 gallons (6.1 liters) of water per flush.

402.2.1 Water Closets after January 1, 1994 [HCD 1 & HCD 2] Water closets, either flush tank, flushometer tank, or flushometer valve operated sold or installed after January 1, 1994, shall use no more than an average of 1.6 gallons (6.1 liters) of water per flush. See Health and Safety Code Section 17921.3

402.2.2 Water Closets on or after July 1, 2011 [HCD 1 & HCD 2] Water closets, either flush tank, flushometer tank, or flushometer valve operated installed on or after July 1, 2011, shall have an effective flush volume in compliance with the following:

  1. Single Flush Toilets - The effective flush volume shall not exceed 1.28 gallons (4.8 liters) when tested in accordance with ASME A112.19.2, Standard for Vitreous China Plumbing Fixtures and Hydraulic Fixtures Requirements for Water Closets and Urinals.
  2. Dual Flush Toilets - The effective flush volume shall not exceed 1.28 gallons (4.8 liters) when tested in accordance with ASME A112.19.2, Standard for vitreous China Plumbing Fixtures and Hydraulic Fixtures Requirements for Water Closets and Urinals, and ASME A112.19.14, Standard for Six-Liter Water Closets Equipped with a Dual Flushing Device.

402.2.2.1 Performance [HCD 1 & HCD 2] Water closets installed on or after July 2, 2011, shall meet or exceed the minimum performance criteria developed for certification of high-efficiency toilets under the WaterSense program sponsored by the U.S. Environmental Protection Agency (EPA).

402.2.2.2 Availability [HCD 1 & HCD 2] Between July 1, 2011, and January 1, 2014, the requirements of Section 402.2.2 may be temporarily suspended on a case by case basis by action of the enforcing agency should such agency determine that an insufficient number of water closets are available.

402.3 Urinals. Urinals shall have an average water consumption of a maximum of 1 gallon (3.8 liters) of water per flush.

402.3.1 Urinals after January 1, 1994 [HCD 1 & HCD 2] Urinals and associated flushometer valves sold or installed after January 1, 1994, shall use no more than an average of one gallon (3.8 liters) per flush. See Health and Safety Code Section 17921.3

402.3.2 Urinals on or after July 1, 2011 [HCD 1 & HCD 2] Urinals and associated flushometer valves sold or installed on or after July 1, 2011, shall use no more than 0.5 gallons (1.9 liters) per flush and meet performance criteria as established in ASME A112.19.2, Standard for Vitreous China Plumbing Fixtures and Hydraulic Fixtures Requirements for Water Closets and Urinals.

402.3.3 Nonwater Supplied Urinals (Waterless Urinals) [HCD 1 & HCD 2] Waterless urinals sold or installed in this state shall comply with all of the following requirements:

51

  1. Meet performance, testing, and labeling requirements established by ASME A112.19.19-2006, Standard for Vitreous China Nonwater Urinals, for vitreous china non-water supplied urinals.
  2. Be listed by an ANSI accredited third-party certification agency to ASME A112.19.19-2006, Standard for Vitreous China Nonwater Urinals.
  3. Follow cleaning and maintenance procedures established by the manufacturer.
  4. Conform to reference standards in Table 14-1 for non-vitreous ceramic or plastic urinal fixtures.
  5. Provide water distribution and fixture supply piping, sized as required elsewhere in this code, roughed-in immediately adjacent to each waterless urinal fixture installed.

For additional information, see Health and Safety Code Section 17921.4.

402.3.4 Nonwater Urinals. [Not adopted by OSHPD 1, 2, 3, and 4] Nonwater urinals shall be listed and comply with the applicable standards referenced in Table 14-1. Nonwater urinals shall have a barrier liquid sealant to maintain a trap seal. Nonwater urinals shall permit the uninhibited flow of waste through the urinal to the sanitary drainage system. Nonwater urinals shall be cleaned and maintained in accordance with the manufacturer's instructions after installation. Where nonwater urinals are installed they shall have a water distribution line rough in to the urinal location to allow for the installation of an approved backflow prevention device in the event of a retrofit.

402.4 Metered Faucets. Self-closing or self-closing metering faucets shall be installed on lavatories intended to serve the transient public, such as those in, but not limited to, service stations, train stations, airports, restaurants, and convention halls. Metered faucets shall deliver a maximum of 0.26 gallons (1.0 liter) of water per use.

402.5 Emergency Safety Showers. Emergency safety showers shall not be limited in their water supply flow rates.

402.6 Installation. Water-conserving fixtures shall be installed in strict accordance with the manufacturer's instructions to maintain their rated performance.

403.0 Overflows.

When any fixture is provided with an overflow, the waste shall be so arranged that the standing water in the fixture cannot rise in the overflow when the stopper is closed or remain in the overflow when the fixture is empty. The overflow pipe from a fixture shall be connected on the house or inlet side of the fixture trap, except that overflow on flush tanks shall be permitted to discharge into the water closets or urinals served by them, but it shall be unlawful to connect such overflows with any other part of the drainage system.

404.0 Strainers and Connections.

404.1 Strainers. Plumbing fixtures, other than water closets and urinals, shall be equipped with approved strainers having an approved waterway area. Strainers serving shower drains shall have a waterway equivalent to the area of the tailpiece.

404.2 Connections. Fixtures having concealed slip joint connections shall be provided with an access panel or utility space not less than twelve (12) inches (305 mm) in its least dimension and so arranged without obstructions as to make such connections accessible for inspection and repair.

404.3 Continuous wastes and fixture tailpieces shall be constructed from the materials specified in Section 701.0 for drainage piping, provided, however, that such connections where exposed or accessible shall be permitted to be of seamless drawn brass not less than No. 20 B & S Gauge (0.032 inches) (0.8 mm). Each such tailpiece, continuous waste, or waste and overflow shall be not less than one and one-half (1½) inches (40 mm) O.D. for sinks, dishwashers, laundry tubs, bathtubs, urinals, and similar fixtures, and not less than one and one-quarter (1¼) inches (32 mm) for lavatories, drinking fountains, and similar small fixtures.

404.4 Approved wye or other directional-type branch fittings shall be installed in continuous wastes connecting or receiving the discharge from food waste disposal units, dishwashers, clothes washers, or other force discharge fixtures or appliances. No dishwasher drain shall be connected to a sink tailpiece, continuous waste, or trap on the discharge side of a food waste disposal unit.

405.0 Prohibited Fixtures.

405.1 Water closets having an invisible seal or an unventilated space or having walls which are not thoroughly washed at each discharge shall be prohibited. Any water closet that might permit siphonage of the contents of the bowl back into the tank shall be prohibited. Drinking fountains shall not be installed in public toilet rooms.

405.2 Prohibited Urinals. Trough urinals and urinals with an invisible seal shall be prohibited.

Exception: Non-water urinals.

405.3 Fixed wooden, or tile wash trays or sinks for domestic use shall not be installed in any building designed or used for human habitation. No sheet metal-lined wooden bathtub shall be installed or reconnected. No dry or chemical closet (toilet) shall be installed in any building used for human habitation, unless first approved by the Health Officer.

406.0 Special Fixtures and Specialties.

406.1 Water and Waste Connections. Baptisteries, ornamental and lily ponds, aquaria, ornamental fountain basins, and similar fixtures and specialties requiring water and/or waste connections shall be submitted for approval to the Authority Having Jurisdiction prior to installation.

406.2 Restaurant kitchen and other special use sinks shall be permitted to be made of approved-type bonderized and galvanized sheet steel of not less than No. 16 U.S. gauge (0.0625 inches) (1.6 mm). Sheet-metal plumbing fixtures shall be ade-

52

quately designed, constructed, and braced in an approved manner to satisfactorily accomplish their intended purpose.

406.3 Special Use Fixtures. Special use fixtures shall be made of one of the following:

  1. Soapstone
  2. Chemical stoneware
  3. Copper-based alloy
  4. Nickel-based alloy
  5. Corrosion-resistant steel
  6. Other materials suited for the intended use of the fixture.

406.4 Zinc Alloy Components. Zinc alloy components shall meet the applicable nationally recognized standards and shall be used in accordance with their listing.

406.5 Drinking Fountains. [HCD 1 & HCD 2] Drinking fountains shall be installed and so regulated that a jet of water extending at least 2 inches (51 mm) in height from the water orifice shall be constantly available. The orifice shall not be accessible to the mouth of the drinker nor subject to immersion.

406.5.1 [DPH] Drinking fountains shall be installed and so regulated that a jet of water extending at least 2 inches (51 mm) in height from the water orifice shall be available when turned on. The orifice shall not be accessible to the mouth of the drinker nor subject to immersion.

407.0 Installation.

407.1 Cleaning. Plumbing fixtures shall be installed in a manner to afford easy access for repairs and cleaning. Where practical, pipes from fixtures shall be run to the nearest wall.

407.2 Joints. Where a fixture comes in contact with the wall or floor, the joint between the fixture and the wall or floor shall be made water-tight.

407.3 Securing Fixtures. Floor-outlet or floor-mounted fixtures shall be rigidly secured to the drainage connection and to the floor, when so designed, by screws or bolts of copper, brass, or other equally corrosion-resistant material.

407.4 Wall-Hung Fixtures. Wall-hung fixtures shall be rigidly supported by metal supporting members so that no strain is transmitted to the connections. Flush tanks and similar appurtenances shall be secured by approved non-corrosive screws or bolts.

407.5 Setting. Fixtures shall be set level and in proper alignment with reference to adjacent walls. No water closet or bidet shall be set closer than fifteen (15) inches (381 mm) from its center to any side wall or obstruction nor closer than thirty (30) inches (762 mm) center to center to any similar fixture. The clear space in front of any water closet or bidet shall be not less than twenty-four (24) inches (610 mm). No urinal shall be set closer than twelve (12) inches (305 mm) from its center to any side wall or partition nor closer than twenty-four (24) inches (610 mm) center to center.

Exception: The installation of paper dispensers or accessibility grab bars shall not be considered obstructions.

407.6 Installations for Persons with Disabilities. Where facilities for persons with disabilities are required in applicable building regulations, the facilities shall be installed in accordance with those regulations. [HCD 1-AC] For specific requirements regarding accommodations for persons with disabilities, see California Code of Regulations, Title 24, Part 2, Chapter 11A and/or Chapter 11B as applicable.

407.7 Supply Fittings. The supply lines and fittings for every plumbing fixture shall be so installed as to prevent backflow as required in Chapter 6.

408.0 Water Closets.

408.1 Water closet bowls for public use shall be of the elongated type. In nurseries, schools, and other similar places where plumbing fixtures are provided for the use of children less than six (6) years of age, water closets shall be of a size and height suitable for children's use. Water closets shall be equipped with seats as required below.

408.2 Water Closet Seats.

408.2.1 Water closet seats shall be of smooth, non-ab-sorbent material. Seats for public use shall conform to the applicable standard referenced in Table 14-1.

408.2.2 Water closet seats, for public use, shall be of the elongated type and either of the open front type or have an automatic seat cover dispenser.

408.2.3 Water closet seats shall be properly sized for the water closet bowl type.

408.3 Securing Floor-Mounted, Back-Outlet Water Closet Bowls. Floor-mounted, back-outlet water closet bowls shall be set level with an angle of ninety (90) degrees (1.57 rad) between the floor and wall at the centerline of the fixture outlet. The floor and wall shall have a flat mounting surface not less than five (5) inches (127 mm) to the right and left of the fixture outlet centerline. The fixture shall be secured to the wall outlet flange or drainage connection and to the floor by corrosion-resistant screws or bolts. The closet flange shall be secured to a firm base.

Where floor-mounted, back-outlet water closets are used, the soil pipe shall be not less than three (3) inches (80 mm) in diameter. Offset, eccentric, or reducing floor flanges shall not be used.

408.4 Closet Rings (Closet Flanges).

408.4.1 Closet rings (closet flanges) for water closets or similar fixtures shall be of an approved type and shall be bronze, copper, hard lead, cast-iron, galvanized malleable iron, ABS, PVC, or other approved materials. Each such closet ring (closet flange) shall be approximately seven (7) inches (178 mm) in diameter and, when installed, shall, together with the soil pipe, present a one and one-half (1½) inch (38 mm) wide flange or face to receive the fixture gasket or closet seal.

408.4.2 Caulked-on closet rings (closet flanges) shall be not less than one-fourth (¼) inch (6.4 mm) thick and not less than two (2) inches (51 mm) in overall depth.

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408.4.3 Closet rings (closet flanges) shall be burned or soldered to lead bends or stubs, shall be caulked to castiron soil pipe, shall be solvent cemented to ABS and PVC, and shall be screwed or fastened in an approved manner to other materials.

408.4.4 Closet rings (closet flanges) shall be adequately designed and secured to support fixtures connected thereto.

408.4.5 Closet screws, bolts, washers, and similar fasteners shall be of brass, copper, or other listed, equally corrosion-resistant materials. Screws and bolts shall be of adequate size and number to properly support the fixture installed.

409.0 Urinals.

Every water supply to a urinal shall be protected by an approved-type vacuum breaker or other approved backflow prevention device as described in Section 603.4.

410.0 Flushing Devices for Water Closets and Urinals.

410.1 Flushing Devices Required. Each water closet, urinal, clinic sink, or other plumbing fixture that depends on trap siphonage to discharge its waste contents shall be provided with a flushometer valve, flushometer tank, or flush tank designed and installed so as to supply water in sufficient quantity and rate of flow to flush the contents of the fixture to which it is connected, to cleanse the fixture, and to refill the fixture trap, without excessive water use. Flushing devices shall meet anti-siphon requirements required in Chapter 6.

410.2 Automatic Flushing Tanks. Tanks flushing more than one (1) urinal shall be automatic in operation and of sufficient capacity to provide the necessary volume to flush and properly cleanse urinals simultaneously. Automatically controlled flushometer valves shall be permitted to be substituted for flush tanks.

410.3 Flushometer Valves. No manually controlled flushometer valve shall be used to flush more than one (1) urinal, and each such urinal flushometer valve shall be an approved, self closing type discharging a predetermined quantity of water. Flushometers shall be installed so that they will be accessible for repair. Flushometer valves shall not be used where the water pressure is insufficient to properly operate them. When the valve is operated, it shall complete the cycle of operation automatically, opening fully and closing positively under the line water pressure. Each flushometer shall be provided with a means for regulating the flow through it.

410.4 Water Supply for Flush Tanks. An adequate quantity of water shall be provided to flush and clean the fixture served. The water supply for flushing tanks and flushometer tanks equipped for manual flushing shall be controlled by a float valve or other automatic device designed to refill the tank after each discharge and to completely shut off the water flow to the tank when the tank is filled to operational capacity. Provision shall be made to automatically supply water to the fixture so as to refill the trap seal after each flushing. The water supply to flush tanks equipped for automatic flushing shall be controlled by a suitable timing device.

410.5 Overflows in Flush Tanks. Flush tanks shall be provided with overflows discharging into the water closet or urinal connected thereto. Overflows supplied as original parts with the fixture shall be of sufficient size to prevent tank flooding at the maximum rate at which the tank is supplied with water under normal operating conditions and when installed per manufacturer's instructions.

411.0 Floor Drains and Shower Stalls.

411.1 Floor drains shall be considered plumbing fixtures, and each such drain shall be provided with an approved-type strainer having a waterway equivalent to the area of the tailpiece. Floor drains, floor receptors, and shower drains shall be of an approved type, suitably flanged to provide a water-tight joint in the floor.

411.2 Location of Floor Drains. Floor drains shall be installed in the following areas:

411.2.1 Toilet rooms containing two (2) or more water closets or a combination of one (1) water closet and one (1) urinal, except in a dwelling unit.

411.2.2 Commercial kitchens and in accordance with Section 704.3.

411.2.3 Laundry rooms in commercial buildings and common laundry facilities in multi-family dwelling buildings.

411.3 Food Storage Areas. If drains are provided in storerooms, walk-in freezers, walk-in coolers, refrigerated equipment, or other locations where food is stored, such drains shall have indirect waste piping. Separate waste pipes shall be run from each food storage area, each with an indirect connection to the building sanitary drainage system. Traps shall be provided if required under Section 801.2.2 of this code and shall be vented.

Indirect drains shall be permitted to be located in freezers or other spaces where freezing temperatures are maintained, provided that traps, when supplied, are located where the seal will not freeze. Otherwise, the floor of the freezer shall be sloped to a floor drain located outside of the storage compartment.

411.4 Floor Slope. Floors shall be sloped to floor drains.

411.5 Shower receptors are plumbing fixtures and shall conform to the general requirements contained in Section 401.0. Each such shower receptor shall be constructed of vitrified china or earthenware, ceramic tile, porcelain-enameled metal, or of such other material acceptable to the Authority Having Jurisdiction. No shower receptor shall be installed unless it conforms to acceptable standards as referenced in Table 14-1 or until a specification or a prototype or both of such receptor has first been submitted to and approval obtained from the Authority Having Jurisdiction.

411.6 Each shower receptor shall be an approved type and be so constructed as to have a finished dam, curb, or threshold that is not less than one (1) inch (25.4 mm) lower than the sides and back of such receptor. In no case shall any dam or threshold be less than two (2) inches (51 mm) or exceeding nine (9) inches (229 mm) in depth when measured from the

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top of the dam or threshold to the top of the drain. Each such receptor shall be provided with an integral nailing flange to be located where the receptor meets the vertical surface of the finished interior of the shower compartment. The flange shall be water-tight and extend vertically not less than one (1) inch (25.4 mm) above the top of the sides of the receptor. The finished floor of the receptor shall slope uniformly from the sides toward the drain not less than one-quarter (¼) inch per foot (20.8 mm/m), nor more than one-half (½) inch per foot (41.8 mm/m). Thresholds shall be of sufficient width to accommodate a minimum twenty-two (22) inch (559 mm) door. Shower doors shall open so as to maintain not less than a twenty-two (22) inch (559 mm) unobstructed opening for egress.

Exception: Showers that are designed to comply with the accessibility standards listed in Table 14-1. [HCD 1-AC] Specific requirements regarding accommodations for persons with disabilities are contained in California Code of Regulations, Title 24, Part 2, Chapter 11A and/or Chapter 11B as applicable. Table 14-1 does not contain the correct accessibility standards for use in California.

411.7 Shower compartments, regardless of shape, shall have a minimum finished interior of one thousand and twenty-four (1,024) square inches (0.66 m2) and shall also be capable of encompassing a thirty (30) inch (762 mm) circle. The minimum required area and dimensions shall be measured at a height equal to the top of the threshold and at a point tangent to its centerline. The area and dimensions shall be maintained to a point of not less than seventy (70) inches (1,778 mm) above the shower drain outlet with no protrusions other than the fixture valve or valves, shower head, soap dishes, shelves, and safety grab bars or rails. Fold-down seats in accessible shower stalls shall be permitted to protrude into the thirty (30) inch (762 mm) circle.

Exceptions:

  1. Showers that are designed to comply with Chapter 11A or 11B of the California Building Code.
  2. The minimum required area and dimension shall not apply for a shower receptor having overall dimensions of not less than thirty (30) inches (762 mm) in width and sixty (60) inches (1,524 mm) in length.
  3. [HCD 1-AC] Specific requirements regarding accommodations for persons with disabilities are contained in California Code of Regulations, Title 24, Part 2, Chapter 11A and/or Chapter 11B as applicable. ICC/ANSI A117.1, Standard for Accessible and Usable Buildings and Facilities, does not contain the correct accessibility standards for use in California.

411.8 When the construction of on-site built-up shower receptors are permitted by the Authority Having Jurisdiction, receptors built directly on the ground shall be water-tight and shall be constructed from approved-type dense, nonabsorbent and noncorrosive materials. Each such receptor shall be adequately reinforced, shall be provided with an approved flanged floor drain designed to make a water-tight joint in the floor, and shall have smooth, impervious, and durable surfaces.

Shower receptors shall have the subfloor and rough side of walls to a height of not less than three (3) inches (76 mm) above the top of the finished dam or threshold shall be first lined with sheet plastic,* lead,* or copper,* or shall be lined with other durable and water-tight materials. Showers that are provided with a built in place, permanent seat or seating area that is located within the shower enclosure, shall be first lined with sheet plastic,* lead,* copper,* or shall be lined with other durable and water-tight materials that extend not less than three (3) inches (76 mm) above horizontal surfaces of the seat or the seating area.

Lining materials shall be pitched one-quarter (¼) inch per foot (20.8 mm/m) to weep holes in the subdrain of a smooth and solidly formed subbase. Such lining materials shall extend upward on the rough jambs of the shower opening to a point not less than three (3) inches (76 mm) above the horizontal surfaces of the seat or the seating area, the top of the finished dam or threshold and shall extend outward over the top of the permanent seat, permanent seating area, or rough threshold and be turned over and fastened on the outside face of both the permanent seat, permanent seating area, or rough threshold and the jambs.

Nonmetallic shower subpans or linings shall be permitted to be built up on the job site of not less than three (3) layers of standard, grade fifteen (15) pound (6.8 kg) asphalt-impregnated roofing felt. The bottom layer shall be fitted to the formed subbase and each succeeding layer thoroughly hot-mopped to that below. Corners shall be carefully fitted and shall be made strong and water-tight by folding or lapping, and each corner shall be reinforced with suitable webbing hot-mopped in place.

Folds, laps, and reinforcing webbing shall extend not less than four (4) inches (102 mm) in all directions from the corner, and webbing shall be of approved type and mesh, producing a tensile strength of not less than fifty (50) psi (344.7 kPa) in either direction. Nonmetallic shower subpans or linings shall be permitted to consist of multilayers of other approved equivalent materials suitably reinforced and carefully fitted in place on the job site as elsewhere required in this section.

Linings shall be properly recessed and fastened to approved backing so as not to occupy the space required for the wall covering and shall not be nailed or perforated at any point that is less than one (1) inch (25.4 mm) above the finished dam or threshold. An approved-type subdrain shall be installed with every shower subpan or lining. Each such subdrain shall be of the type that sets flush with the subbase and shall be equipped with a clamping ring or other device to make a tight connection between the lining and the drain. The subdrain shall have weep holes into the waste line. The weep holes located in the subdrain clamping ring shall be protected from clogging.

Shower lining materials shall conform to approved standards acceptable to the Authority Having Jurisdiction.

*Note: Lead and copper subpans or linings shall be insulated from conducting substances other than their connecting drain by fifteen (15) pound (6.8 kg) asphalt felt or its equivalent,

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and no lead pan or liner shall be constructed of material weighing less than four (4) pounds per square foot (19.5 kg/m2). Copper pans or liners shall be not less than No. 24 B & S Gauge (0.02 inches) (0.5 mm). Joints in lead pans or liners shall be burned. Joints in copper pans or liners shall be soldered or brazed. Plastic pans shall not be coated with asphalt-based materials.

411.8.1 Tests for Shower Receptors. Shower receptors shall be tested for water-tightness by filling with water to the level of the rough threshold. The test plug shall be so placed that both upper and under sides of the subpan shall be subjected to the test at the point where it is clamped to the drain.

411.9 Floors of public shower rooms shall have a nonskid surface and shall be drained in such a manner that wastewater from one bather shall not pass over areas occupied by other bathers. Gutters in public or gang shower rooms shall have rounded corners for easy cleaning and shall be sloped not less than two (2) percent toward drains. Drains in gutters shall be spaced at a maximum of eight (8) feet (2,438 mm) from sidewalls nor more than sixteen (16) feet (4,877 mm) apart.

411.10 Location of Valves and Heads. Control valves and showerheads shall be located on the sidewall of shower compartments or otherwise arranged so that the showerhead does not discharge directly at the entrance to the compartment and the bather can adjust the valves prior to stepping into the shower spray.

411.11 Water Supply Riser. Every water supply riser from the shower valve to the showerhead outlet, whether exposed or not, shall be securely attached to the structure.

412.0 Minimum Number of Required Fixtures.

412.1 Fixture Count. Plumbing fixtures shall be provided for the type of building occupancy and in the minimum number shown in Table 4-1 [OSHPD 1, 2, 3 & 4] and Table 4-2.

412.1.1 [DSA-AC] Effective January 1, 1990, in new construction and those existing facilities which occupancy type are listed in Tables 4-1 and 4-4 for public use, which apply for permit to undertake construction, structural alterations, repairs or improvement which exceed 50 percent of the square footage of the entire facility, shall install water closets, urinals, lavatories and drinking fountains as stipulated in Tables 4-1 and 4-4 for public use. Community and/or municipal parks with a bleacher capacity not exceeding 500 seats shall be exempt from the requirements of this section and Tables 4-1 and 4-4. Each bathroom shall comply with Part 2, Chapters 11A and 11B of the California Building Code.

412.2 Access to Fixtures.

412.2.1 In multi-story buildings, accessibility to the required fixtures shall not exceed one (1) vertical story.

412.2.2 Fixtures accessible only to private offices shall not be counted to determine compliance with this section.

412.3 Separate Facilities.

Separate toilet facilities shall be provided for each sex.

Exceptions:

  1. Residential installations.
  2. In occupancies serving ten (10) or fewer people, one (1) toilet facility, designed for use by no more than one (1) person at a time, shall be permitted for use by both sexes.
  3. In business and mercantile occupancies with a total floor area of fifteen-hundred (1,500) square feet (139.4 m2) or less, one (1) toilet facility, designed for use by no more than one (1) person at a time, shall satisfy the requirements for serving customers and employees of both sexes.

412.3.1 [OSHPD 1, 2, 3 & 4] Separate toilet facilities shall be provided for the use of patients, staff personnel and visitors.

412.4 Fixture Requirements for Special Occupancies.

412.4.1 Additional fixtures may be required when unusual environmental conditions or referenced activities are encountered.

412.4.2 In food preparation areas, fixture requirements may be dictated by health codes.

412.4.3 Types of occupancy not shown in Table 4-1 shall be considered individually by the Authority Having Jurisdiction.

412.5 Facilities in Mercantile and Business Occupancies Serving Customers.

412.5.1 Requirements for customers and employees shall be permitted to be met with a single set of restrooms accessible to both groups.

The required number of fixtures shall be the greater of the required number for employees or the required number for customers.

412.5.2 Fixtures for customer use shall be permitted to be met by providing a centrally located facility accessible to several stores. The maximum distance from entry to any store to this facility shall not exceed five-hundred (500) feet (152.4 m).

412.5.3 In stores with a floor area of one-hundred and fifty (150) square feet (13.9 m2) or less, the requirement to provide facilities for employees shall be permitted to be met by providing a centrally located facility accessible to several stores. The maximum distance from entry to any store to this facility shall not exceed three-hundred (300) feet (91.4 mm).

412.6 Toilet Facilities for Workers.

Suitable toilet facilities shall be provided and maintained in a sanitary condition for the use of workers during construction.

412.7 [CA] Cosmetology. Each school shall provide public toilet rooms for each sex on the licensed premises in accordance with the California Plumbing Code, Table 4-1.

412.8 [CA] Cosmetology Establishments. Each establishment where hairdressing services are performed shall provide at least one public toilet room located on the premises in accordance with the California Plumbing Code, Table 4-1.

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412.9 [DPH] Commissaries Serving Mobile Food Preparation Units. Commissaries serving mobile food preparation units shall have at least one hose bibb. The hose bibb shall be supplied with hot and cold water and be provided with a single spout, a backflow-preventer device and shall be located on the premises of the establishment.

412.10 [DPH] Employee Lavatories in Food Establishments. Employee lavatories installed in food establishments shall be equipped with an approved single spout capable of providing tempered (100°F - 115°F) (37.8°C - 46.1°C) running water.

Note: This requirement applies only to commissaries serving mobile food preparation units.

413.0 Fixtures and Fixture Fittings for Persons with Disabilities.

Plumbing fixtures and fixture fittings for persons with disabilities shall conform to the appropriate standards referenced in Table 14-1 of this code. [HCD 1-AC] Specific requirements regarding accommodations for persons with disabilities are contained in California Code of Regulations, Title 24, Part 2, Chapter 11A and/or Chapter 11B as applicable. Table 14-1 does not contain the correct accessibility standards for use in California.

413.1 Limitation of Hot Water Temperature for Public Lavatories. Hot water delivered from public-use lavatories shall be limited to a maximum temperature of 120°F (49°C) by a device that conforms to ASSE 1070, Standard for Water Temperature Limiting Devices, or CSA B125.3, Standard for Plumbing Fittings. The water heater thermostat shall not be considered a control for meeting this provision.

414.0 Bathtubs and Whirlpool Bathtubs.

Unless otherwise listed, bathtubs and whirlpool bathtubs shall comply with the following requirements:

414.1 A removable panel shall be provided to access and remove the pump. Whirlpool pump access located in the crawl space shall be located no more than twenty (20) feet (6,096 mm) from an access door, trap door, or crawl hole.

414.2 The circulation pump shall be located above the crown weir of the trap.

414.3 The pump and the circulation piping shall be self-draining to minimize water retention in accordance with standards referenced in Table 14-1.

414.4 Suction fittings on whirlpool bathtubs shall comply with the listed standards.

414.5 Limitation of Hot Water in Bathtubs and Whirlpool Bathtubs. The maximum hot water temperature discharging from the bathtub and whirlpool bathtub filler shall be limited to 120°F (49°C) by a device that conforms to ASSE 1070, Standard for Water Temperature Limiting Devices, or CSA B125.3, Standard for Plumbing Fittings. The water heater thermostat shall not be considered a control for meeting this provision.

415.0 Installation of Fixture Fittings.

Where two (2) separate handles control the hot and cold water, the left-hand control of the faucet when facing the fixture fitting outlet shall provide the means to alter the hot water temperature from the fixture fitting.

Single-handle mixing valves shall have the flow of hot water correspond to the markings on the fitting.

416.0 Bidets.

416.1 Materials. Bidets shall conform to the standards listed in Table 14-1.

416.2 Backflow Protection. The water supply to the bidet shall be protected according to Chapter 6, which allows for an airgap or vacuum breaker.

416.3 Limitation of Water Temperature in Bidets. The maximum hot water temperature discharging from a bidet shall be limited to 110°F (43°C) by a device that conforms to ASSE 1070, Standard for Water Temperature Limiting Devices, or CSA B125.3, Standard for Plumbing Fittings. The water heater thermostat shall not be considered a control for meeting this provision.

417.0 Future Fixtures.

When provisions are made for the future installation of fixtures, those provided for shall be considered in determining the required sizes of drain pipes. Construction for future installations shall be terminated with a plugged fitting or fittings. Where the plugged fitting is at the point where the trap of a fixture is installed, the plumbing system for such fixture shall be complete and conform with the plumbing requirements of this code.

418.0 Shower and Tub-Shower Combination Control Valves.

Showers and tub-shower combinations in buildings shall be provided with individual control valves of the pressure balance, thermostatic, or combination pressure balance/thermostatic mixing valve type that provide scald and thermal shock protection. These valves shall conform to ASSE 1016, Standard for Automatic Compensating Valves for Individual Showers and Tub/Shower Combinations, or ASME A112.18.1/CSA B125.1, Standard for Plumbing Supply Fittings. Gang showers, when supplied with a single temperature-controlled water supply pipe, shall be controlled by a mixing valve that conforms to ASSE 1069, Standard for Automatic Temperature Control Mixing Valves. Handle position stops shall be provided on such valves and shall be adjusted per the manufacturer’s instructions to deliver a maximum mixed water setting of 120°F (49°C). The water heater thermostat shall not be considered a suitable control for meeting this provision.

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TABLE 4-1
MINIMUM PLUMBING FACILITIES1
Each building shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Department Having Jurisdiction18. Table 4-1 applies to new buildings, additions to a building, and changes of occupancy or type in an existing building resulting in increased occupant load. Exception: New cafeterias used only by employees.
For requirements for persons with disabilities, Chapter 11A or 11B of the California Building Code, shall be used.
The total occupant load shall be determined in accordance with the [BSC, DSA-SS & DSA-SS/CC] Occupant Load Factor Table A. The type of building or occupancy shall be determined based on the actual use of the various spaces within the building. Building categories not shown in Table 4-1 shall be considered separately by the Authority Having Jurisdiction. The minimum number of fixtures shall be calculated at 50 percent male and 50 percent female based on the total occupant load.
Once the occupant load and uses are determined, the requirements of Section 412.0 and Table 4-1 shall be applied to determine the minimum number of plumbing fixtures required.
Exceptions:
  1. [HCD 1-AC & HCD 2] For applications listed in Sections 1.8.2.1.2 and 1.8.2.1.3 regulated by the Department of Housing and Community Development, each building shall be provided with sanitary facilities, including provisions for persons with disabilities as prescribed by the Department. Covered multi-family dwellings required to be accessible to persons with disabilities shall comply with California Code of Regulations, Title 24, Part 2, Chapter 11A. Permanent buildings in mobilehome parks and special occupancy parks required to be accessible by persons with disabilities, shall comply with California Code of Regulations, Title 24, Part 2, Chapter 11B.
  2. [HCD 1] For limited density owner-built rural dwelling sanitary facilities, the type, design and number of facilities as required and approved by the local health official shall be provided to the dwelling sites. It shall not be required that such facilities be located within the dwelling.
TYPE OF BUILDING2 OR OCCUPANCYWATER CLOSETS14 (FIXTURES PER PERSON)URINALS5,10 (FIXTURES PER PERSON)LAVATORIES (FIXTURES PER PERSON)BATHTUBS OR SHOWERS (FIXTURES PER PERSON)DRINKING FOUNTAINS3, 13, 17 (FIXTURES PER PERSON)
Assembly places theatres, auditoriums, convention halls, etc.– for permanent employee useMaleFemaleMaleMaleFemale  
1: 1-151: 1-150: 1-91 per 401 per 40
2: 16-353: 36-551: 10-50
3: 36-554: 36-55Add one fixture for each additional 50 males.
Over 55, add 1 fixture for each additional 40 persons.
Assembly places–theatres, auditoriums, convention Halls, etc. – for public useMaleFemaleMaleMaleFemale  
1: 1-1003: 1-501: 1-1002: 101-2002: 101-2001: 1-150
2: 101-2004: 51-1002: 101-2002: 201-4002: 201-4002: 151-400
3: 201-4008: 101-2003: 201-4003: 401-7503: 401-7503: 401-750
 11: 201-4004: 401-600Over 750, add one fixture for each additional 500 persons.Over 750, add one fixture for each additional 500 persons.
Over 400, add one fixture for each additional 500 males and 1 for each additional 125 females.Over 600, add 1 fixture for each additional 300 males.
Dormitories9– School or labor16MaleFemaleMaleMaleFemale1 per 81 per 15012
1 per 101 per 81 per 251 per 121 per 12For females, add 1 bathtub per 30. Over 150, add 1 fixture for each additional 50 males.
Add 1 fixture for each additional 25 males (over 10) and 1 for each additional 20 females (over 8).Over 150, add 1 fixture for each additional 50 males.Over 12, add one fixture for each additional 20 males and 1 for each 15 additional females.
Dormitories – for staff use16MaleFemaleMaleMaleFemale1 per 8 
1: 1-151: 1-151 per 501 per 401 per 40
2: 16-353: 16-35
3: 36-554: 36-55
Over 55, add 1 fixture for each additional 40 persons.
Dwellings4     
Single dwelling1 per dwelling1 per dwelling1 per dwelling
Multiple dwelling or apartment house161 per dwelling or apartment unit1 per dwelling1 per dwelling or apartment unit
Hospital waiting rooms1 per room 1 per room 1 per 15012
Hospitals – for employee useMaleFemaleMaleMaleFemale  
1: 1-151: 1-150: 1-91 per 401 per 40
2: 16-353: 16-351: 10-50
3: 36-554: 36-55Add one fixture for each additional 50 males.
Over 55, add 1 fixture for each additional 40 persons.58
Hospitals  1 per room1 per room1 per 15012
Individual room1 per room1 per 10 patients1 per 20 patients 
Ward room1 per 8 patients  
Industrial6 warehouses, workshops, foundries, and similar establishments – for employee useMaleFemale Up to 100, 1 per 10 persons1 shower for each 15 persons exposed to excessive heat or to skin contamination with poisonous, infectious, or irritating material1 per 15012
1: 1-101: 1-10
2: 11-252: 11-25
3: 26-503: 26-50Over 100, 1 per 15 persons7,8
4: 51-754: 51-75
5: 76-1005: 76-100
Over 100, add 1 fixture for each additional 30 persons.
Institutional – other than hospitals or penal institutions (on each occupied floor)MaleFemaleMaleMaleFemale1 per 81 per 15012
1 per 251 per 200: 1-91 per 101 per 10
 1: 10-50 
Add one fixture for each additional 50 males.
Institutional – other than hospitals or penal institutions (on each occupied floor) – for employee useMaleFemaleMaleMaleFemale1 per 81 per 15012
1: 1-151: 1-150: 1-91 per 401 per 40
2: 16-353: 16-351: 10-50  
3: 36-554: 36-55Add one fixture for each additional 50 males.
Over 55, add 1 fixture for each additional 40 persons.
Office or public buildingsMaleFemaleMaleMaleFemale 1 per 15012
1: 1-1003: 1-501: 1-1001: 1-2001: 1-200
2: 101-2004: 51-1002: 101-2002: 201-4002: 201-400
3: 201-4008: 101-2003: 201-4003: 401-7503: 401-750
 11: 201-4004: 401-600Over 750, add one fixture for each additional 500 persons.
Over 400, add one fixture for each additional 500 males and 1 for each additional 150 females.Over 600, add 1 fixture for each additional 300 males.
Office or public buildings – for employee useMaleFemaleMaleMaleFemale  
1: 1-151: 1-150: 1-91 per 401 per 40
2: 16-353: 16-351: 10-50  
3: 36-554: 36-55Add one fixture for each additional 50 males.
Over 55, add 1 fixture for each additional 40 persons.
Penal institutions – for employee useMaleFemaleMaleMaleFemale 1 per 15012
1: 1-151: 1-150: 1-91 per 401 per 40
2: 16-353: 16-351: 10-50 
3: 36-554: 36-55Add one fixture for each additional 50 males.
Over 55, add 1 fixture for each additional 40 persons.
Penal institutions – for prison use   1 per 16 
Cell1 per cellMale1 per cell 1 per cell block floor
Exercise room1 per exercise room1 per exercise room1 per exercise room
Exercise Area1 per 201 per 201 per exercise room
    Access to drinking fountain
Agriculture BuildingsAt least 1 At least 1  
Milking BarnsMaleFemale
Meat and Poultry1: 1-151: 1-15
Inspection Bldgs2: 16-352: 16-35
3: 36-553: 36-55
4: 56-804: 56-80
1 for each additional 30 persons in excess of 80
Schools of CosmetologyMaleFemale At least 1  
At least 1At least 2
*Per installation
Cosmetological Establishments*At least 1*At least 1    
*Per installation59
Corrections Standards Authority     
Juvenile Halls1 per 61 per 101 per 6Access to drinking fountain
Camp1 per 101 per 101 per 7Access to drinking fountain
Corrections Standards     
Authority1 per 81 per 81 per 20
Local Detention Facilites11
Locked Sleeping Rooms19
Public or professional offices15Same as Office or Public Buildings for employee use15Same as Office or Public Buildings for employee use15Same as Office or Public Buildings for employee use15 Same as Office or Public Buildings for employee use17
Restaurants, pubs, and lounges11,15MaleFemaleMaleMaleFemale  
1: 1-501: 1-501: 1-1501: 1-1501: 1-150
2: 51-1502: 51-150Over 150, add 1 fixture for each additional 150 males.2: 151-2002: 151-200
3: 151-3004: 151-3003: 201-4003: 201-400
Over 300, add 1 fixture for each additional 200 persons.Over 400, add 1 fixture for each additional 400 persons.
Retail or Wholesale StoresMaleFemaleMaleOne for each two water closets 0: 1-3017
1:1-1001:1-250:0-251:31-150
2:101-2002:26-1001:26-100One additional drinking fountain for each 150 persons thereafter
3: 201-4004: 101-2002:101-200
6: 201-3003:201-400
8: 301-4004:401-600
Over 400, add one fixture for each additional 500 males and one for each 150 femalesOver 600, add one fixture for each additional 300 males
Schools – for staff useMaleFemaleMaleMaleFemale  
1: 1-151: 1-151 per 501 per 401 per 40
All schools2: 16-352: 16-35
3: 36-553: 36-55
Over 55, add 1 fixture for each additional 40 persons.
Schools – for student useMaleFemale MaleFemale 1 per 15012
1:1-201:1-201:1-251:1-25
Nursery2: 21-502: 21-502: 26-502: 26-50
Over 50, add 1 fixture for each additional 50 persons.Over 50, add 1 fixture for each additional 50 persons.
ElementaryMaleFemaleMaleMaleFemale 1 per 15012
1 per 301 per 251 per 751 per 351 per 35
SecondaryMaleFemaleMaleMaleFemale 1 per 15012
1 per 401 per 301 per 351 per 401 per 40
Others (colleges, universities, adult centers, etc.)MaleFemaleMaleMaleFemale 1 per 15012
1 per 401 per 301 per 351 per 401 per 40
Worship places educational and activities UnitMaleFemaleMale1 per 2 water closets 1 per 15012
1 per 1501 per 751 per 150
Worship places principal assembly placeMaleFemaleMale1 per 2 water closets 1 per 15012
1 per 1501 per 751 per 15060
1 The figures shown are based upon one (1) fixture being the minimum required for the number of persons indicated or any fraction thereof.
2 Building categories not shown on this table shall be considered separately by the Authority Having Jurisdiction.
3 Drinking fountains shall not be installed in toilet rooms.
4 Laundry trays. One (1) laundry tray or one (1) automatic washer standpipe for each dwelling unit or one (1) laundry tray or one (1) automatic washer standpipe, or combination thereof, for each twelve (12) apartments. Kitchen sinks, one (1) for each dwelling or apartment unit.
5 For each urinal added in excess of the minimum required, one water closet shall be permitted to be deducted. The number of water closets shall not be reduced to less than two-thirds (2/3) of the minimum requirement.
6 As required by PSAI Z4.1, Sanitation in Places of Employment.
7 Where there is exposure to skin contamination with poisonous, infectious, or irritating materials, provide one (1) lavatory for each five (5) persons.
8 Twenty-four (24) lineal inches (610 mm) of wash sink or eighteen (18) inches (457 mm) of a circular basin, when provided with water outlets for such space, shall be considered equivalent to one (1) lavatory.
9 Laundry trays, one (1) for each fifty (50) persons. Service sinks, one (1) for each hundred (100) persons.
10 General, In applying this schedule of facilities, consideration shall be given to the accessibility of the fixtures. Conformity purely on a numerical basis may not result in an installation suited to the needs of the individual establishment. For example, schools should be provided with toilet facilities on each floor having classrooms.
a. Surrounding materials, wall, and floor space to a point two (2) feet (610 mm) in front of urinal lip and four (4) feet (1,219 mm) above the floor, and not less than two (2) feet (610 mm) to each side of the urinal shall be lined with non-absorbent materials.
Trough urinals shall be prohibited.
11 A restaurant is defined as a business that sells food to be consumed on the premises.
The number of occupants for a drive-in restaurant shall be considered as equal to the number of parking stalls.
Hand-washing facilities shall be available in the kitchen for employees.
12 Where food is consumed indoors, water stations shall be permitted to be substituted for drinking fountains. Offices, or public buildings for use by more than six (6) persons shall have one (1) drinking fountain for the first one-hundred fifty (150) persons and one (1) additional fountain for each three-hundred (300) persons thereafter.
13 There shall be at least one (1) drinking fountain per occupied floor in schools, theatres, auditoriums, dormitories, offices, or public buildings.
14 The total number of water closets for females shall be equal to the total number of water closets and urinals required for males. This requirement shall not apply to Retail or Wholesale Stores.
15 For smaller-type Public and Professional Offices such as banks, dental offices, law offices, real estate offices, architectural offices, engineering offices, and similar uses. A public area in these offices shall use the requirements for Retail or Wholesale Stores.
16 Recreation or community room in multiple dwellings or apartment buildings, regardless or their occupant load, shall be permitted to have separate single accommodation facilities in common-use areas within tracts or multi-family residential occupancies where the use of these areas is limited exclusively to owners, residents, and their guests. Examples are community recreation or multi-purpose areas in apartments, condos, townhouses, or tracts.
17 A drinking fountain shall not be required in occupancies of 30 or less. When a drinking fountain is not required, then footnotes 3, 12, and 13 are not applicable.
18 [BSC, DSA-AC, DSA-SS, DSA-SS/CC, HCD 1 & HCD 2 & OSHPD 1, 2, 3 & 4] In accordance with Sections 1.8.7 and 301.2, the Authority Having Jurisdiction may approve alternative design criteria when determining the minimum number of plumbing fixtures.
19 Fixtures need to not be located within the locked room provided a communication system or procedure is in effect to give the minor immediate access to a lavatory, toilet and drinking fountain.

61

TABLE A.
OCCUPANT LOAD FACTOR:[BSC, DSA-SS & DSA-SS/CC]
OCCUPANCY*,**OCCUPANT LOAD FACTOR (square feet) (CBC 2001, Table A-29A)
Group A
1. Auditoriums, convention halls, dance floors, lodge rooms, stadiums, and casinos (where no fixed seating is provided) (use ½ “one-half” the number of fixed seating)
15
2. Conference rooms, dining rooms, drinking establishments, exhibit rooms, gymnasiums, lounges, stages, and similar uses, including restaurants classified as Group B occupancies30
3. Worship places; principal assembly area, educational and activity unit (where no fixed seating is provided) (use ½ “one-half” the number of fixed seating)30
Group B
Office or public buildings (area accessible to the public)
200
Group E
Schools for day care, elementary, secondary
50
Educational Facilities Other than Group E
Colleges, universities, adult centers, etc.
50
Group F
Workshops, foundries and similar establishments
2,000
Group H
Hazardous materials fabrication and storage
2,000
Group I
Hospital general use area, health care facilities
200
Group M
Retail or wholesale stores
200
Group R
Congregate residence, Group R-1
200
Group S
Warehouse
5,000
* Any uses not specifically listed shall be based on similar uses listed in this table.
* * For building or space with mixed occupancies, use appropriate occupancy group for each area (for example, a school may have an “A” occupancy for the gymnasium, a “B” occupancy for the office, an “E” occupancy for the classrooms, etc.). Accessory areas may be excluded (for example: hallway, restroom, stair enclosure).

62

TABLE 4-2
[OSHPD 1, 2, 3 & 4] MINIMUM PLUMBING FACILITIES
SPACEHANDWASHING FIXTURESCRUB SINKSTOILETSBATHTUBS OR SHOWERSSERVICE SINKS1CLINIC SINKS
OSHPD 1      
General Acute Care Hospitals1,20and Acute Psychiatric Hospitals1,20      
Administration Space      
Lobby      
Male12 1   
Female12 1   
Airborne infection isolation rooms25 1515  
Cardiac Catheterization      
Procedure room 14  1 
Staff clothing changing areas1 11 shower  
Central Sterile Supply115     
Cesarean/Delivery Service Space      
Labor Rooms1 1919  
Recovery Room1    1
Drug distribution station1     
Cesarean operating room 210    
Delivery room 110    
Staff clothing changing areas      
Male1 11  
Female1 11  
Staff lounge toilet1 1   
LDR or LDRP room1 11  
Waiting room12 126   
Clinical Laboratory Service Space111     
Dietetic Service Space1     
Toilets and lockers  1   
Emergency Service      
Standby emergency medical service      
Lobby - public toilets1 1   
Treatment room1     
Open plan1:4 cubicles     
Patient toilet1 1   
Administrative center/nurses’ station1     
Basic emergency medical service      
Public waiting  1   
Treatment areas, more than 81 2   
Treatment room1     
Open plan1:4 cubicles     
Observation units1:4 cubicles 1:8 cubicles   
Emergency surgery, Cystoscopy, or Special procedure room117  1 
Employee Dressing Rooms      
Male12 1   
Female12 1   
Exam and treatment rooms1     
Housekeeping room1    1 63
Intensive Care Units7     1
Open plan1:3 beds     
Patient rooms281     
Staff lounge12 1   
Newborn Intensive Care Unit (NICU)1.4 bassinets17    1
Control station1     
Staff lounge12 1   
Laboratories115   1 
Laundry      
Soiled linen1     
Medicine preparation rooms or station1     
Morgue and Autopsy1   1 
Nourishment area12   1 
Nuclear Medicine      
Procedure room1     
Mold room1     
Radiotherapy      
Reception/waiting area12 1   
Nursing Service Space      
Administrative center or nurse station1 1   
Examination or treatment room1     
Patient room1     
Patient toilet and bath facilities1312 1:4 beds1:1216  
Multi-purpose rooms  12   
Central bathing facility  1   
Staff toilet room12 1   
Medicine preparation room1     
Nourishment area12   1 
Nurses' Stations27 or Administration Center1     
Nurseries      
Well Newborn1:6 bassinets     
Exam/Workrooms1     
Outpatient service space  1   
Outpatient surgery 1    
Endoscopy examination room1     
Pediatric and Adolescent Unit      
Patient room1 1   
Play areas toilet room1 1   
Central bathing toilet room1 1   
Pharmacy125 1   
Postanesthesia care units (PACU)1    1
Protective environment room25 1515  
Psychiatric Nursing Unit      
Patient room1     
Patient toilet and bath facilities1312 11:1216  
Radiological/Imaging Services Space1     
Computerized tomography (CT)1 129   
Ultrasound1 129, 30   
Angiography114, 31129   64
Fluoroscopy81 1   
Patient toilet12 1   
Staff toilets12 118   
Rehabilitation Therapy Space      
Patient Waiting area      
Male toilet room12 1   
Female toilet room12 1   
Training toilet  1   
Physical therapy service space1     
Occupational therapy service space1     
Speech pathology1     
Renal Dialysis Service Space1:4 stations    1
Bloodborne Infection Isolation Room1     
Nurses' station1     
Medication dispensing1     
Home training room1     
Repair room1   1 
Patient toilet1 1   
Staff lounge1 11 shower  
Waiting room toilet1 1   
Surgical Service Space 23    
Staff clothing change areas      
Male12 11 shower  
Female12 11 shower  
Clean-up rooms1     
Substerile area1     
Anesthesia workroom18     
Soiled workroom or soiled holding1     
Utility Room      
Clean211     
Soiled221    114
OSHPD 2      
Skilled Nursing or Intermediate Care Facilities      
Nurses' Station1     
Utility room1     
Clean121     
Soiled122    114
Patient beds1:832 1:61:20  
Administration space - public toilets  1   
Employee lockers      
Male12 1   
Female12 1   
Outpatient waiting room toilet room12 1   
Laundry1     
Dietetic service space      
Kitchen1     
Food serving area1     
Employee washroom1     
Airborne infection isolation room51 1515  65
Protective environment room515 1515  
Medicine rooms1915     
Optional services15     
Physical therapy1 1   
Occupational therapy1 1   
Speech pathology/Audiology1     
Housekeeping room1   1 
OSHPD 3      
Licensed Clinics and any freestanding building under a hospital license where outpatient clinical services are provided      
Examination and treatment rooms1     
Primary care clinic    1 
Utility room115     
Birthing Clinic1   1 
Clean-up room1     
Birthing room toilet room12 1   
Shower   1  
Housekeeping room    1 
Surgery Clinic 23  1 
Clean-up room1     
Outpatient changing12 1   
Postanesthesia recovery1     
Housekeeping room    1 
Nurses’ control area1     
Staff clothing area      
Male1 1   
Female1 1   
Chronic Dialysis    1 
Nurse station1:8 patients     
Patient toilet room12 123   
Staff lockers12 1   
Bloodborne infection isolation room25 1515  
Utility room1  1  
Home training1     
Rehabilitation Clinics      
Physical therapy space1     
Occupational therapy1     
Speech pathology/Audiology11   1 
Housekeeping room    1 
OSHPD 424      
Correctional Treatment Centers1      
Nurses’ station1     
Utility Room1     
Clean121     
Soiled122     
Patient beds1:82 1:61:12  
Employee dressing rooms      
Male12 1   
Female12 1   66
Outpatient services  1   
Airborne infection isolation room616 1616  
Protective environment room616 1616  
Medicine rooms19115     
Treatment and Exam Rooms1     
Toilets      
Patient131:82 1:61:12  
Staff12 1   
Employee dressing rooms and lockers      
Male12 1   
Female12 1   
Outpatient services      
Waiting area12 1   
Housekeeping room     1
Soiled utility room1     
Pharmacy1     
1 Each department or nursing unit shall be served by a housekeeping room equipped with a service sink. Departments may share service closets provided the departmental services are compatible. A dedicated housekeeping room shall be provided for the following services: ICU, NICU, nursery, dietary, renal dialysis and outpatient surgery.
2 Conventional spouts and controls on hot-and cold-water supplies are acceptable. Aerators are not permitted. Non-aerating laminar flow devices are permitted. Nourishment areas shall have a hand washing fixture in or immediately accessible from the nourishment area.
3 A minimum of two scrub sinks shall be provided in a surgical unit containing one operating room. Four scrub sinks shall be provided in surgical units containing two operating rooms. One additional scrub sink shall be provided per each additional operating room.
4 The scrub sink is in addition to the required number for surgeries.
5 The following fixtures shall be provided in airborne infection or protective environment rooms of hospitals only:
a. Within an adjoining toilet room, a lavatory, a shower containing a seat or a space for a shower chair, and toilet equipped with bedpan flushing attachment with a vacuum breaker.
b. A handwashing fixture within a separate anteroom.
Exceptions:1. Chemical dependency recovery hospitals. 2. In emergency department, separate toilet/shower not required.
6 The following fixtures shall be provided in isolation rooms of correctional treatment centers only:
a. Within an adjoining toilet area, a handwashing fixture, a shower containing a seat or a space for a shower chair, and water closet equipped with bedpan flushing attachment with a vacuum breaker.
b. A handwashing fixture within a separate anteroom.
7 Includes burn center spaces, acute respiratory-care service spaces, and coronary-care service space.
8 A toilet room with handwashing fixture shall adjoin each fluoroscopy room.
9 One toilet with lavatory and one shower may serve two labor rooms.
10 One additional scrub sink per cesarean or delivery operating room.
11 Provide emergency eye-wash and shower.
12 Handwashing fixtures shall be located in convenient locations throughout the space.
13 Fixtures serving individual patient rooms shall not be considered as meeting the required ratios for bedrooms not served by individual adjoining toilet or bathrooms.
14 The clinic sink may be deleted if all bedrooms in the nursing unit are provided with adjoining toilets with bedpan flushing devices.
15 Conventional controls on hot-and cold-water supplies are acceptable. The water discharge points shall be 5 inches (127 millimeters) above the fixture rim. Aerators are not permitted. Non-aerating laminar flow devices are permitted.
16 A minimum of one bathtub is required on each floor of an acute care or acute psychiatric hospital providing skilled nursing or intermediate care services.
17 In a multiple-bed room, every bed position shall be within 20 feet (6 meters) of a hands-free handwashing fixture. Where an individual room concept is used, a handwashing fixture shall be provided within each infant care room.
18 When three or more procedure rooms are provided.
19 If a separate medicine room is provided, the room shall be equipped with a sink in addition to the nurses' station handwashing fixture. Hot-water supplies are optional.
20 Chemical dependency recovery hospitals are only required to provide handwashing fixtures for exam rooms and kitchens. All other fixtures may be equipped per Footnote 2.
21 Handwashing fixtures may be deleted if room is storage and holding only.
22 Handwashing fixtures may be deleted if room is temporary holding of soiled materials.
23 Toilet shall be equipped with a bedpan flushing attachment.
24 Optional services approved by the licensing agency shall comply with the applicable space requirements of OSHPD 1 and 2.
25 Shall be provided in each separate room where open medication is handled.
26 Conveniently accessible throughout the unit.
27 Includes rooms or areas within coronary and intensive-care units and postanethesia recovery rooms.
28 Modular toilet/sink combination units located within a privacy curtain may be used within each patient space or private room. The toilet fixture shall be completely contained within cabinetry when not in use.
29 Toilet room facilities located adjacent to or in the immediate vicinity are adequate.
30 Toilet room shall be accessible from the procedure room.
31 Scrub sink shall be located outside the staff entrance to the procedure room.
32 Lavatories shall be equipped with gooseneck spouts without aerators and may have conventional controls.

67

TABLE 4-3
TYPE OF BUILDING OR OCCUPANCYWATER CLOSETS (FIXTURES PER PERSON)URINALS (TROUGH URINAL TO INDIVIDUAL URINAL EQUIVALENCE)MALELAVATORIES (FIXTURES PER PERSON)BATHTUBS OR SHOWERS FIXTURES PER PERSON)7DRINKING FOUNTAINS (FIXTURES PER PERSON)3
MALEFEMALE
Nonindustrial—office buildings, public buildings and similar establishments1 1-15
2 16-35
3 36-55
4 56-80
5 81-110
6 111-150
1 1-15
2 16-35
3 36-55
4 56-80
5 81-110
6 111-150
Length of trough urinalNumber of individual urinals1 1-15
2 16-35
3 36-60
4 61-90
5 91-125
1:10 persons per shift required to shower
1 additional for each additional 40 employees or fraction thereof24"(610 mm)
36"(914 mm)
48"(1219 mm)
60"(1524 mm)
1
2
2
3
1 additional for each additional 4 employees or fraction thereof
Industrial–factories, warehouse, loft buildings and similar establishments1 1-15
2 16-35
3 36-55
4 56-80
5 81-110
6 111-150
1 1-15
2 16-35
3 36-55
4 56-80
5 81-110
6 111-150
24"(610 mm)
36"(914 mm)
48"(1219 mm)
60"(1524 mm)
72"(1829 mm)
1
2
2
3
4
1 to 100 employees 1 per 101:10 persons per shift required to shower
1 additional for each additional 40 employees or fraction thereof Over 100 employees 1 additional for each additional 15 employees or fraction thereof
1 The figures shown are based on one fixture being the minimum required for the number of persons indicated or any fraction thereof.
2 Each water closet shall occupy a separate compartment which shall be equipped with a door, door latch and clothes hook. The door and the walls or partitions between fixtures shall be sufficient to assure privacy.
3 Drinking fountains shall not be located in toilet rooms.
4 Washing facilities shall be reasonably accessible to all employees.
5 Toilet facilities shall be accessible to the employees at all times. Where practicable, toilet facilities should be within 200 feet (61 m) of locations at which workers are regularly employed and should not be more than one floor-to-floor flight of stairs from working areas.
6 Urinals may be installed instead of water closets in toilet rooms to be used only be men provided that the number of water closets shall not be less than two thirds of the minimum number of toilet facilities specified. The length of trough urinals to the equivalent number of individual urinals shall be based on the above table.
7 When there are less than five employees, separate toilet rooms for each sex are not required provided toilet rooms can be locked from the inside and contain at least one water closet.
8 Twenty-four linear inches of wash sink or 18 inches of circular basin, when provided with water outlets for such space, shall be considered equivalent to one lavatory.
Exception: The requirements of Table 4-3 do not apply to mobile crews or to normally unattended work locations provided employees at these locations have immediately available transportation to nearby toilet facilities which meet the requirements of Table 4-3.
TABLE 4-4
TYPE OF BUILDING OR OCCUPANCY2WATER CLOSETS (FIXTURES PER PERSON)URINALS (FIXTURES PER MALE)LAVATORIES (FIXTURES PER PERSON)BATHTUBS OR SHOWERS (FIXTURES PER PERSON)DRINKING FOUNTAINS (FIXTURES PER PERSON)
Day Use Public Beaches1,2Male
1 1-100
Female
1 1-100
May be substituted for up to two-thirds of the water closets required   
No sex designated
1 1-500
Minimum of 2
Picnic AreasMale
1 1-50
Female
1 1-50
    
Overnight Use Public Beaches21 1-7.5 campsites3
1 1-7.5 campsites3
May be substituted for up to one-third of the water closets required3 1 1-12.5 composites4 
Organized Camps1 1-153 1 1-151 1-156Minimum 1 per camp
1 Toilets shall be located in accordance with actual use patterns on the beach. The reasonable intent of the toilet requirements is that it should apply on the basis of average daily use during periods of peak use. The health officer may determine how many days the population standard may be exceeded.
2 Laundry facilities are not required, but if they are provided, must be a minimum of two laundry trays or a washing machine.
3 Toilet facilities shall not be farther than 400 feet from any lot or campsite.
4 Showers are not required, but it provided, they shall be provided on the indicated ratio. Outdoor rinse-off showers may be cold water only.
5 Toilets shall be located within 300 feet from the living accommodations they serve.
6 Showers shall be provided in the living area or in a centrally located structure.
Exception: Intermittent short-term organized camps are not required to provide shower facilities, but it provided, they shall comply with this part.

68

CALIFORNIA PLUMBING CODE – MATRIX ADOPTION TABLE
CHAPTER 5 – WATER HEATERS
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
Adopt Entire ChapterX    XXXXXX       
Adopt Entire Chapter as amended (amended sections listed below) XXX             
Adopt only those sections that are listed below                 
Chapter/Section                 
508.2 XXX             

69

70

CHAPTER 5
WATER HEATERS

Part I

501.0 General.

The regulations of this chapter shall govern the construction, location, and installation of fuel-burning and other water heaters heating potable water, together with chimneys, vents, and their connectors. The minimum capacity for water heaters shall be in accordance with the first hour rating listed in Table 5-1. Design, construction, and workmanship shall be in conformity with accepted engineering practices, manufacturer's installation instructions, and applicable standards and shall be of such character as to secure the results sought to be obtained by this code. No water heater shall be hereinafter installed that does not comply in all respects with the type and model of each size thereof approved by the Authority Having Jurisdiction. A list of accepted gas appliance standards are included in Table 14-1.

502.0 Definitions.

502.1 Appliance Categorized Vent Diameter/Area. The minimum vent area/diameter permissible for Category I appliances to maintain a nonpositive vent static pressure when tested in accordance with nationally recognized standards. [NFPA 54:3.3.7]

502.2 Chimney (See also Gas Vent, and Venting System). One (1) or more passageways, vertical or nearly so, for conveying flue or vent gases to the outside atmosphere. [NFPA 54:3.3.17]

502.3 Chimney, Factory-Built. A chimney composed of listed factory-built components assembled in accordance with the terms of listing to form the complete chimney. [NFPA 54:3.3.17.2]

502.4 Chimney, Masonry. A field-constructed chimney of solid masonry units, bricks, stones, listed masonry chimney units, or reinforced portland cement concrete, lined with suitable chimney flue liners. [NFPA 54:3.3.17.3]

502.5 Chimney, Metal. A field-constructed chimney of metal. [NFPA 54:3.3.17.4]

502.6 Combustible Material. As pertaining to materials adjacent to or in contact with heat-producing appliances, vent connectors, gas vents, chimneys, steam and hot water pipes, and warm air ducts, shall mean materials made of or surfaced with wood, compressed paper, plant fibers, or other materials that are capable of being ignited and burned. Such material shall be considered combustible even though flame-proofed, fire-retardant treated, or plastered. [NFPA 54:3.3.65.1]

502.7 Direct-Vent Appliances. Appliances that are constructed and installed so that air for combustion is derived directly from the outside atmosphere and all flue gases are discharged to the outside atmosphere. [NFPA 54:3.3.6.3]

502.8 Flue Collar. That portion of an appliance designed for the attachment of a draft hood, vent connector, or venting system. [NFPA 54:3.3.45]

502.9 Gas Vent, Type B. A vent for venting-listed gas appliances with draft hoods and other Category I appliances listed for use with Type B gas vents. [NFPA 54:3.3.105.2.2]

502.10 Gas Vent, Type L. A vent for venting appliances listed for use with Type L vents and appliances listed for use with Type B gas vents. [NFPA 54:3.3.105.2.4]

502.11 Indirect-Fired Water Heater. A water heater consisting of a storage tank equipped with an internal or external heat exchanger used to transfer heat from an external source to heat potable water. The storage tank either contains heated potable water or water supplied from an external source, such as a boiler.

502.12 Vent. A passageway used to convey flue gases from the gas utilization appliances or their vent connectors to the outside atmosphere. [NFPA 54:3.3.103]

502.13 Vent Connector. The pipe or duct that connects a fuel-gas-burning appliance to a vent or chimney. [NFPA 54:3.3.106]

502.14 Venting System. A continuous open passageway from the flue collar or draft hood of a gas-burning appliance to the outside atmosphere for the purpose of removing flue or vent gases. [NFPA 54:3.3.96.6]

502.15 Water Heater. An appliance for supplying hot water for domestic or commercial purposes. [NFPA 54:3.3.55.7]

503.0 Permits.

It shall be unlawful for any person to install, remove, or replace or cause to be installed, removed, or replaced any water heater without first obtaining a permit from the Authority Having Jurisdiction to do so.

TABLE 5-11
FIRST HOUR RATING
Number of Bathrooms 1 to 1.52to2.53 to 3.5
Note:
1 The first hour rating is found on the “Energy Guide” label.
2Non-storage and solar water heaters shall be sized to meet the appropriate first hour rating as shown in the table.
Number of Bedrooms12323453456
First Hour Rating,2 Gallons4254545467678067808080

71

504.0 Inspection.

504.1 Inspection of Chimneys or Vents. This inspection shall be made after all chimneys, vents, or parts thereof, authorized by the permit, have been installed and before any such vent or part thereof has been covered or concealed.

504.2 Final Water Heater Inspection. This inspection shall be made after all work authorized by the permit has been installed. The Authority Having Jurisdiction will make such inspection as deemed necessary to be assured that the work has been installed in accordance with the intent of this code. No appliance or part thereof shall be covered or concealed until the same has been inspected and approved by the Authority Having Jurisdiction.

505.0 Water Heater Requirements.

505.1 Location. Water heater installations in bedrooms and bathrooms shall comply with one of the following [NFPA 54:10.28.1]:

  1. Fuel-burning water heaters may be installed in a closet located in the bedroom or bathroom provided the closet is equipped with a listed, gasketed door assembly and a listed self-closing device. The self-closing door assembly shall meet the requirement of Section 505.1.1. The door assembly shall be installed with a threshold and bottom door seal and shall meet the requirements of Section 505.1.2. All combustion air for such installations shall be obtained from the outdoors in accordance with Section 507.4 The closet shall be for the exclusive use of the water heater.
  2. Water heater shall be of the direct vent type. [NFPA 54:10.28.1(2)]

505.1.1 Self-Closing Doors. Self-closing doors shall swing easily and freely and shall be equipped with a self closing device to cause the door to close and latch each time it is opened. The closing mechanism shall not have a hold-open feature. [NFPA 80:6.1.4.2]

505.1.2 Gasketing. Gasketing on gasketed doors or frames shall be furnished only in accordance with the published listings of the door, frame, or gasketing material manufacturer. [NFPA 80:6.4.8]

Exception: Where acceptable to the Authority Having Jurisdiction, gasketing of non-combustible or limited-combustible material (See NFPA 220, Standard on Types of Building Construction) shall be permitted to be applied to the frame, provided closing and latching of the door are not inhibited.

505.2 Water heaters of other than the direct-vent type shall be located as close as practical to the chimney or gas vent. [NFPA 54:9.28.1.2]

505.3 Clearance.

505.3.1 The clearances shall not be such as to interfere with combustion air, draft hood clearance and relief, and accessibility for servicing. Listed water heaters shall be installed in accordance with their listings and the manufacturer's instructions. [NFPA 54:10.28.2.1]

505.3.2 Unlisted water heaters shall be installed with a clearance of twelve (12) inches (300 mm) on all sides and rear. Combustible floors under unlisted water heaters shall be protected in an approved manner. [NFPA 54:10.28.2.2]

505.4 Pressure-Limiting Devices. A water heater installation shall be provided with overpressure protection by means of an approved, listed device, installed in accordance with the terms of its listing and the manufacturer's instructions. [NFPA 54:10.28.3]

505.5 Temperature-Limiting Devices. A water heater installation or a hot water storage vessel installation shall be provided with over temperature protection by means of an approved, listed device installed in accordance with the terms of its listing and the manufacturer's instructions. [NFPA 54:10.28.4]

505.6 Temperature, Pressure, and Vacum Relief Devices. The installation of temperature, pressure, and vacuum relief devices or combinations thereof, and automatic gas shutoff devices, shall be installed in accordance with the terms of their listings and the manufacturer's instructions. A shutoff valve shall not be placed between the relief valve and the water heater or on discharge pipes between such valves and the atmosphere. The hourly Btu discharge capacity or the rated steam relief capacity of the device shall be not less than the input rating of the water heater. [NFPA 54:10.28.5]

506.0 Oil-Burning and Other Water Heaters.

506.1 Water heaters deriving heat from fuels or types of energy other than gas shall be constructed and installed in accordance with approved standards. Vents or chimneys for such appliances shall be approved types. An adequate supply of air for combustion and for adequate ventilation of heater rooms or compartments shall be provided. Each such appliance shall be installed in a location approved by the Authority Having Jurisdiction and local and state fire-prevention agencies.

506.2 Storage-type water heaters and hot water boilers deriving heat from fuels or types of energy other than gas, shall be provided with, in addition to the primary temperature controls, and over temperature safety protection device constructed, listed, and installed in accordance with nationally recognized applicable standards for such devices and a combination temperature and pressure-relief valve.

506.3 Oil-fired water heaters shall be installed in accordance with NFPA 31, Standard for the Installation of Oil-Burning Equipment.

506.4 Indirect-Fired Water Heaters.

506.4.1 Indirect-fired water heaters shall conform to applicable sections of the ASME (d=i)Boiler and Pressure Vessel Code, or to one (1) of the other applicable standards shown in Table 14-1. Each water heater shall bear a label in accordance with ASME requirements, or an approved testing agency, certifying and attesting that such an appliance has been tested, inspected and meets the requirements of the applicable standards or code.

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506.4.2 indirect-fired water heater that incorporate a single-wall heat exchanger shall meet all of the following requirements:

  1. Connected to a low-pressure hot water boiler limited to a maximum of thirty (30) psig by an approved safety or relief valve.
  2. Heater transfer medium is either potable water or contains fluids having a toxicity rating or Class of 1.
  3. Bear a label with the word “Caution,” followed by the following statements:
    1. The heat-transfer medium must be water or other nontoxic fluid having a toxic rating or class of 1 as listed in Clinical Toxicology of Commercial Products, 5th edition.
    2. The pressure of the heat-transfer medium must be limited to a maximum of thirty (30) psig (207 kPa) by an approved safety or relief valve.

    Note: The word “Caution” and the statements in letters having an uppercase height of not less than 0.120 of an inch (3.0 mm). The vertical spacing between lines of type shall be not less than 0.046 of an inch (1.2 mm). Lowercase letters shall be compatible with the uppercase letter size specification.

507.0 Air for Combustion and Ventilation.

507.1 General.

507.1.1 Air for combustion, ventilation, and dilution of flue gases for gas utilization appliances installed in buildings shall be obtained by application of one (1) of the methods covered in Sections 507.2.1 through 507.7. Gas utilization appliances of other than natural draft and Category I vented appliances shall be provided with combustion, ventilation, and dilution air in accordance with the appliance manufacturer's instruction. Where infiltration does not provide the necessary air, outdoor air shall be introduced in accordance with methods covered in Sections 507.4 through 507.7. [NFPA 54:9.3.1.1]

Exceptions:

  1. This provision shall not apply to direct-vent appliances.
  2. Type 1 clothes dryers that are provided with makeup air in accordance with section NFPA 54:10.4.3.

507.1.1.1 Clothes Dryer. A device used to dry welt laundry by means of heat derived from the combustion of fuel gases. [NFPA 54:3.3.18]

507.1.1.2 Clothes Dryer, Type 1. Primarily used in family living environment. May or may not be coinoperated for public use. [NFPA 54:3.3.18.1]

507.1.1.3 Exhausting to the Outdoors. Type 1 and Type 2 clothes dryers shall be exhausted to the outside air. [NFPA 54:10.4.2]

507.1.1.4 Provision for Make-Up Air. Make-up air shall be provided for Type 1 Clothes dryers in accordance with the manufacturer's installation instructions. [NFPA 54:10.4.3.1]

507.1.2 Gas appliances of other than natural draft design and other than Category I vented appliances shall be provided with combustion, ventilation, and dilution air in accordance with the appliance manufacturer' instructions. [NFPA 54:9.3.1.2]

507.1.3 Where used, a draft hood or a barometric draft regulator shall be installed in the same room or enclosure as the appliance served so as to prevent any difference in pressure between the hood or regulator and the combustion air supply. [NFPA 54:9.3.1.4]

507.1.4 Makeup air requirements for the operation of exhaust fans, kitchen ventilation systems, clothes dryers, and fireplaces shall be considered in determining the adequacy of a space to provide combustion air requirements. [NFPA 54:9.3.1.5]

507.2 Indoor Combustion Air. The required volume of indoor air shall be determined in accordance with Sections 507.2.1 or 507.2.2 except that where the air infiltration rate is known to be less than 0.40 ACH, Section 507.2.2 shall be used. The total required volume shall be the sum of the required volume calculated for all appliances located within the space. Rooms communicating directly with the space in which the appliances are installed through openings not furnished with doors, and through combustion air openings sized and located in accordance with Section 507.3 are considered a part of the required volume. [NFPA 54:9.3.2]

507.2.1 Standard Method. The required volume shall be not less than fifty (50) cubic feet per 1,000 Btu/hour (4.8 m3/kW). [NFPA 54:9.3.2.1]

507.2.2 Known Air Infiltration Rate Method. Where the air infiltration rate of a structure is known, the minimum required volume shall be determined as follows [NFPA 54:9.3.2.2]:

  1. For appliances having other than fan-assisted, combustion systems: calculate using Equation 5-1 but not less than thirty-five (35) cubic feet per 1,000 Btu/hour (3.4 m3/kW). [NFPA 54:9.3.2.2(1)]
  2. For fan-assisted combustion system appliances, calculate using Equation 5-2 but not less than twentyfive (25) cubic feet per 1,000 Btu/hour (2.4 m3/kW). [NFPA 54:9.3.2.2(2)]

Image

Image

where:

Iother=All appliance other than fan-assisted input in Btu/hour

Ifan = Fan-assisted appliance input in Btu/hour

ACH = Air change per hour (Percent of volume of space exchanged per hour, expressed as a decimal)

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507.3 Indoor Opening Size and Location. Openings used to connect indoor spaces shall be sized and located in accordance with the following [NFPA 54:9.3.2.3]:

  1. Combining spaces on the same story. Each opening shall have a free area of not less than one (1) square inch/1,000 Btu/h (2,200 mm2/kW) of the total input rating of all gas utilization appliances in the space, but not less than one-hundred (100) square inches (0.06 m2). One (1) opening shall commence within twelve (12) inches (300 mm) of the top, and one (1) opening shall commence within twelve (12) inches (300 mm) of the bottom of the enclosure [see Figure 5-7]. The dimension of air openings shall be not less than three (3) inches (80 mm). [NFPA 54:9.3.2.3(1)]
  2. Combining spaces in different stories. The volumes of spaces in different stories shall be considered as communicating spaces where such spaces are connected by one (1) or more openings in doors or floor having a total free area of not less than two (2) square inches/1,000 Btu/h (4,400 mm2/KW) of total input rating of all gas utilization appliances. [NFPA 54:9.3.2.3(2)]

507.4 Outdoor Combustion Air. Outdoor combustion air shall be provided through opening(s) to the outdoors in accordance with methods Sections 507.4.1 or 507.4.2. The dimension of air openings shall be not less than three (3) inches (80 mm). [NFPA 54:9.3.3]

507.4.1 Two Permanent Opening Method. Two (2) permanent openings, one (1) commencing within twelve (12) inches (300 mm) of the top and one (1) commencing within twelve (12) inches (300 mm) of the bottom of the enclosure shall be provided. The openings shall communicate directly, or by ducts, with the outdoors or spaces that freely or by ducts, with the outdoors or spaces that freely communicate with outdoors as follows [NFPA 54:9.3.3.1]:

  1. Where directly communicating with the outdoors or where communicating to the outdoors through vertical ducts, each opening shall have a free area of not less than one (1) square inch/4000 Btu/h (550 mm2/kW) of total input rating of all appliances in the enclosure (See Figures 5-8 and 5-9). [NFPA 54:9.3.3.1(1)]
  2. Where communicating with the outdoors through horizontal ducts, each opening shall have a free area of not less than one (1) square inch/2,000 Btu/h (1,000 mm2/kW) of total input rating of all appliances in the enclosure (See Figure 5-10). [NFPA 54:9.3.3.1(2)]

507.4.2 One Permanent Opening Method. One (1) permanent opening, commencing within twelve (12) inches (30 mm) of the top of the enclosure, shall be provided. The appliance shall have clearances of not less than one (1) inch (25 mm) from the sides and back and six (6) inches (160 mm) from the front of the appliance. The opening shall directly communicate with the outdoors or shall communicate through a vertical or horizontal duct to the outdoors or spaces that freely communicate with the outdoors [see Figure 5-11] and shall have a minimum free area of the following [NFPA 54:9.3.3.2]:

  1. One (1) square inch/3,000 Btu/h (700 mm3/kW) of the total input rating of all appliances located in the enclosure, and [NFPA 54:9.3.3.2(1)]
  2. Not less than the sum of the areas of all vent connectors in the space. [NFPA 54:9.3.3.2(2)]

507.5 Combination Indoor and Outdoor Combustion Air. The use of a combination of indoor and outdoor combustion air shall be in accordance with Section 507.5.1, 507.5.2 and 507.5.3 (See example calculation in NFPA 54, National Fuel Gas Code, Annex J and this chapter— Part II). [NFPA 54:9.3.4]

507.5.1 Indoor Openings. Where used, openings connecting the interior spaces shall comply with Section 507.3. [NFPA 54:9.3.4(1)]

507.5.2 Outdoor openings shall be located in accordance with Sections 507.4.1 or 507.4.2. [NFPA 54:9.3.4(2)]

507.5.3 Outdoor Openings Size. The outdoor openings size shall be calculated in accordance with the following [NFPA 54:9.3.4(3)]:

  1. The ratio of interior spaces shall be the available volume of communicating spaces divided by the required volume.
  2. The outdoor size reduction factor shall be one (1) minus the ratio of interior spaces.
  3. The Minimum size of outdoor openings shall be the full size of outdoor openings calculated in accordance with Sections 507.4.1 or 507.4.2, multiplied by the reduction factor. The dimension of air openings shall be not less than three (3) inches (80 mm). [NFPA 54:9.3.4(3)(c)]

507.6 Engineered Installations. Engineered combustion air installation shall provide an adequate supply of combustion, ventilation, and dilution air and shall be approved by the Authority Having Jurisdiction. [NFPA 54:9.3.5]

507.7 Mechanical Combustion Air Supply. Where combustion air is provided by a mechanical air supply system, the combustion air shall be supplied from outdoors at the minimum rate of 0.35 cubic feet/min per 1,000 Btu/h (0.034 m3/min per kW) for appliance located within the space.[NFPA 54:9.3.6]

507.7.1 Where exhaust fans are installed, additional air shall be provided to replace the exhausted air. [NFPA 54:9.3.6.1]

507.7.2 Each of the appliances served shall be interlocked to the mechanical air supply system to prevent main burner operation where the mechanical air supply system is not in operation. [NFPA 54:9.3.6.2]

507.7.3 Where combustion air is provided by the building's mechanical ventilation system, the system shall provide the specified combustion air rate in addition to the required ventilation air. [NFPA 54:9.3.6.3]

507.8 Louvers, Grilles, and Screens.

  1. Louvers and Grilles. The required size of openings for combustion, ventilation, and dilution air shall be based 74on the net free area of each opening. Where the free area through a design of louver or grille is known, it shall be used in calculating the size opening required to provide the free area specified. Where the design and free area are not known, it shall be assumed that wood louvers will have 25 percent free area and metal louvers and grilles will have 75 percent free area. Nonmotorized louvers and grilles shall be fixed in the open position. [NFPA 54:9.3.7.1]
  2. Minimum Screen Mesh Size. Screens shall be not less than one-fourth (¼) inch mesh. [NFPA 54:9.3.7.2]
  3. Motorized louvers shall be interlocked with the appliance so they are proven in the full open position prior to main burner ignition and during main burner operation. Means shall be provided to prevent the main burner from igniting should the louver fail to open during burner startup and to shut down the main burner if the louvers close during burner operation. [NFPA 54:9.3.7.3]

507.9 Combustion Air Ducts. Combustion air ducts shall comply with the following:

  1. Ducts shall be of galvanized steel or a material having equivalent corrosion resistance, strength, and rigidity. [NFPA 54:9.3.8.1]

    Exception: Within dwelling units, unobstructed stud and joist spaces shall not be prohibited from conveying combustion air, provided that not more than one (1) fireblock is removed.

  2. Ducts shall terminate in an unobstructed space, allowing free movement of combustion air to the appliances. [NFPA 54:9.3.8.2]
  3. Ducts shall serve a single space. [NFPA 54:9.3.8.3]
  4. Ducts shall not service both upper and lower combustion air openings where both such openings are used. The separation between ducts serving upper and lower combustion air openings shall be maintained to the source of combustion air. [NFPA 54:9.3.8.4]
  5. Ducts shall not be screened where terminating in an attic space. [NFPA 54:9.3.8.5]
  6. Intakes for combustion air ducts located exterior to the building shall have the lowest side of the combustion air intake openings located at least twelve (12) inches (300 mm) vertically from the adjoining finished grade level.
  7. Horizontal upper combustion air ducts shall not slope downward toward the source of combustion air. [NFPA 54:9.3.8.6]
  8. The remaining space surrounding a chimney liner, gas vent, special gas vent, or plastic piping installed within a masonry chimney flue, metal or factory-built chimney, shall not be used to supply combustion air [NFPA 54:9.3.8.7], unless it is listed and shown in the manufacturer's installation instructions.

508.0 Other Water Heater Installation Requirements.

508.1 The Authority Having Jurisdiction shall have the authority to require the use of an approved dielectric insulator on the water piping connections of water heaters and related water heating appliances.

508.2 Protection from Seismic Damage. Water heaters shall be anchored or strapped or resist horizontal displacement due to earthquake motion. Strapping shall be at points within the upper one third (1/3) and lower one-third (/) of its vertical dimension. At the lower point, a minimum distance of four (4) inches (102 mm) shall be maintained above the controls with the strapping.

Note: [HCD 1 & HCD 2] Reference Health and Safety Code Section 19211(a) which addresses new, replacement, and existing water heaters.

Note: The applicable subsection of Health and Safety Code Section 19211(a) which addresses new, replacement, and existing water heaters is repeated here for clarity and reads as follows:

Section 19211(a) Notwithstanding Section 19100, all new and replacement water heaters, and all existing residential water heaters shall be braced, anchored, or strapped to resist falling or horizontal displacement due to earthquake motion. At a minimum, any water heater shall be secured in accordance with the California Plumbing Code, or modifications made thereto by a city, county, or city and county pursuant to Section 17958.5.

508.3 A water heater supported from the ground shall rest on level concrete or other approved base extending not less than three (3) inches (76 mm) above the adjoining ground level.

508.4 When a water heater is located in an attic, attic-ceiling assembly, floor-ceiling assembly, or floor-subfloor assembly where damage results from a leaking water heater, a watertight pan of corrosion-resistant materials shall be installed be neath the water heater with not less than three-quarters (¾) of an inch (20 mm) diameter drain to an approved location.

508.5 Relief Valve Discharge. Discharge from a relief valve into a water heater pan shall be prohibited.

508.6 Added or Converted Appliances. When an additional or replacement appliance is installed or an appliance is converted to gas from another fuel, the location in which the appliance is to be operated shall be checked to verify the following [NFPA 54:9.1.2]:

508.6.1 Air for combustion and ventilation is provided where required, in accordance with the provisions of Section 507.0. Where existing facilities are not adequate, they shall be upgraded to Section 507.0 specifications. [NFPA 54:9.1.2(1)]

508.6.2 The installation components and appliances meet the clearances to combustible material provisions of NFPA 54:9.2.2. It shall be determined that the installation and operation of the additional or replacement appliance does not render the remaining appliance unsafe for continued operation. [NFPA 54:9.1.2(2)]

(The following reference was extracted from NFPA 54, National Fuel Gas Code).

9.2.2 Clearance to Combustible Materials. Appliances and their vent connectors shall be installed with clearances from combustible material so their operation will

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not create a hazard to persons or property. Minimum clearances between combustible walls and the back and sides of various conventional types of appliances and their vent connectors are specified in Chapters 10 and 12. (Reference can also be made to NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances.)

508.6.3 The venting system is constructed and sized in accordance with the provisions of this chapter. Where the existing venting system is not adequate, it shall be upgraded to comply with this chapter. [NFPA 54:9.1.2(3)]

508.7 Types of Gases. It shall be determined whether the gasutilization appliance has been designed for use with the gas to which it will be connected. No attempt shall be made to convert the appliance from the gas specified on the rating plate for use with a different gas without consulting the installation instructions, the serving gas supplier, or the appliance manufacturer for complete instructions. [NFPA 54:9.1.3]

508.8 Safety Shutoff Devices for Unlisted LP-Gas Appliance Used Indoors. Unlisted gas utilization appliances for use with undiluted liquefied petroleum gases and installed indoors shall be equipped with safety shutoff devices of the complete shutoff type. [NFPA 54:9.1.4]

508.9 Use of Air or Oxygen Under Pressure. Where air or oxygen under pressure is used in connection with the gas supply, effective means such as a back-pressure regulator and relief valve shall be provided to prevent air or oxygen from passing back into the gas piping. Where oxygen is used, installation shall be in accordance with NFPA 51, Standard for the Design and Installation of Oxygen-Fuel Gas Systems for Welding, Cutting, and Allied Processes. [NFPA 54:9.1.5]

508.10 Protection of Gas Appliances from Fumes or Gases Other than Products of Combustion. Non-direct vent-type gas appliances installed in beauty shops, barbershops, or other facilities where chemicals that generate corrosive or flammable products such as aerosol sprays are routinely used shall be located in an equipment room separate or partitioned off from other areas with provisions for combustion and dilution air from outdoors. Direct vent appliances shall be installed in accordance with the appliance manufacturer’s installation instructions. [NFPA 54:9.1.6.2]

508.11 Process Air. In addition to air needed for combustion in commercial or industrial processes, process air shall be provided as required for cooling of equipment or material, controlling dew point, heating, drying, oxidation, dilution, safety exhaust, odor control, air for compressors, and for comfort and proper working conditions for personnel. [NFPA 54:9.1.7]

508.12 Building Structural Members.

508.12.1 Structural members of a building shall not pass through gas utilization appliances having an operating temperature exceeding 500°F (260°C). [NFPA 54:9.1.8.1]

508.12.2 Structural members passing through gas utilization appliances having an operating temperature of 500°F (260°C) or less shall be of noncombustible material. Building columns, girders, beams, or trusses shall not be installed within appliances, unless insulation and ventilation are provided to avoid deterioration in strength and ventilation are provided to avoid deterioration in strength and linear expansion of the building structure in either a vertical or a horizontal direction. [NFPA 54:9.1.8.2]

508.12.3 Gas utilization appliances shall be furnished either with load-distributing bases or with a sufficient number of supports to prevent damage to either the building structure or appliance. [NFPA 54:9.1.8.3]

508.12.4 At the locations selected for installation of the gas utilization appliance, the dynamic and static load carrying capacities of the building structure shall be checked to determine whether they are adequate to carry the additional loads. The appliance shall be supported and shall be connected to the piping so as not to exert undue stress on the connections. [NFPA 54:9.1.8.4]

508.13 Flammable Vapors. Gas appliances shall not be installed in areas where the open use, handling, or dispensing of flammable liquids occurs, unless the design, operation, or installation reduces the potential of ignition of the flammable vapors. Gas utilization appliances installed in compliance with Sections 508.14, 508.15, or 508.16 shall be considered to comply with the intent of this provision. [NFPA 54:9.1.9]

508.14 Installation in Residential Garages.

  1. Gas utilization appliances in residential garages and in adjacent spaces that open to the garage and are not part of the living space of a dwelling unit shall be installed so that burners and burner-ignition devices are located not less than eighteen (18) inches (450 mm) above the floor unless listed as flammable vapor ignition resistant. [NFPA 54:9.1.10.1]
  2. Such appliances shall be located or protected so it is not subject to physical damage by a moving vehicle. [NFPA 54:9.1.10.2]
  3. When appliances are installed in a separate enclosed space having access only from outside of the garage, such appliances shall be permitted to be installed at floor level, providing the required combustion air is taken from the exterior of the garage. [NFPA 54:9.1.10.3]

508.15 Installation in Commercial Garages.

508.15.1 Parking Structures. Gas utilization appliances installed in enclosed, basement, and underground parking structures shall be installed in accordance with NFPA 88A, Standard for Parking Structures. [NFPA 54:9.1.11.1]

508.15.2 Repair Garages. Gas utilization appliances installed in repair garages shall be installed in a detached building or room, separated from repair areas by walls or partitions, floors, or floor-ceiling assemblies that are constructed so as to prohibit the transmission of vapors and having a fire-resistance rating of not less than one (1) hour, and that have no openings in the wall separating the repair area within eight (8) feet (2.5 m) of the floor. Wall penetrations shall be fire-stopped. Air for combustion purposes shall be obtained from outside the building. The heating room shall not be used for the storage of combustible materials. [NFPA 54:9.1.11.2]

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Exceptions:

  1. Overhead heaters where installed not less than eight (8) ft (2.5 m) above the floor shall be permitted.
  2. Heating appliances for vehicle repair areas where there is no dispensing or transferring of Class I or Class II flammable or combustible liquids or liquefied petroleum gas shall be installed in accordance with NFPA 30A, Code for Motor Fuel Dispensing Facilities and Repair Garages. [NFPA 54:9.1.11.2]

508.16 Installation in Aircraft Hangars. Heaters in aircraft hangars shall be installed in accordance with NFPA 409, Standard on Aircraft Hangars. [NFPA 54:9.1.12]

508.17 Gas Appliance Physical Protection. Where it is necessary to locate gas utilization appliances close to a passageway traveled by vehicles or equipment, guardrails or bumper plates shall be installed to protect the appliance from damage. [NFPA 54:9.1.13]

508.18 Venting of Flue Gases. Gas utilization appliances shall be vented in accordance with the provisions of this chapter and NFPA 54, National Fuel Gas Code, Chapter 12. [NFPA 54:9.1.14]

508.19 Extra Device or Attachment. No device or attachment shall be installed on any gas utilization appliance that could in any way impair the combustion of gas. [NFPA 54:9.1.15]

508.20 Adequate Capacity of Piping. When additional gas utilization appliances are being connected to a gas piping system, the existing piping shall be checked to determine if it has adequate capacity (See Section 1209.4.3). Where inadequate, the existing system shall be enlarged as necessary, or separate gas piping of adequate capacity shall be run from the point of delivery to the appliance. [NFPA 54:9.1.16]

508.21 Avoiding Strain on Gas Piping. Gas utilization appliances shall be supported and so connected to the piping as not to exert undue strain on the connections. [NFPA 54:9.1.17]

508.22 Gas Appliance Pressure Regulators. Where the gas supply pressure exceeds that at which the gas utilization appliance is designed to operate or varies beyond the design pressure limits of the appliance, a gas appliance pressure regulator shall be installed. [NFPA 54:9.1.18]

508.23 Venting of Gas Appliance Pressure Regulators. Venting of gas appliance pressure regulators shall comply with the following requirements [NFPA 54:9.1.19]:

508.23.1 Gas appliance pressure regulators requiring access to the atmosphere for successful operation shall be equipped with vent piping leading outdoors or, if the regulator vent is an integral part of the appliance, into the combustion chamber adjacent to a continuous pilot, unless constructed or equipped with a vent limiting means to limit the escape of gas from the vent opening in the event of diaphragm failure. [NFPA 54:9.1.19(1)]

508.23.2 Vent limiting means shall be employed on listed gas appliance pressure regulators only. [NFPA 54:9.1.19(2)]

508.23.3 In the case of vents leading outdoors, means shall be employed to prevent water from entering this piping and also to prevent blockage of vents by insects and foreign matter. [NFPA 54:9.1.19(3)]

508.23.4 Under no circumstances shall a regulator be vented to the gas utilization appliance flue or exhaust system. [NFPA 54:9.1.19(4)]

508.23.5 In the case of vents entering the combustion chamber, the vent shall be located so the escaping a gas will be readily ignited by the pilot and the heat liberated thereby will not adversely affect the normal operation of the safety shutoff system. The terminus of the vent shall be securely held in a fixed position relative to the pilot. For manufactured gas, the need for a flame arrester in the vent piping shall be determined. [NFPA 54:9.1.19(5)]

508.23.6 Vent lines from a gas appliance pressure regulator and bleed lines from a diaphragm-type valve shall not be connected to a common manifold terminating in a combustion chamber. Vent lines shall not terminate in positive-pressure-type combustion chambers. [NFPA 54:9.1.19(6)]

508.24 Bleed Lines for Diaphragm-Type Valves. Bleed lines shall comply with the following requirements [NFPA 54:9.1.20]:

508.24.1 Diaphragm-type valves shall be equipped to convey bleed gas to the outside atmosphere or into the combustion chamber adjacent to a continuous pilot. [NFPA 54:9.1.20(1)]

508.24.2 In the case of bleed lines leading outdoors, means shall be employed to prevent water from entering this piping and also to prevent blockage of vents by insects and foreign matter. [NFPA 54:9.1.20(2)]

508.24.3 Bleed lines shall not terminate in the gas utilization appliance flue or exhaust system. [NFPA 54:9.1.20(3)]

508.24.4 In the case of bleed lines entering the combustion chamber, the bleed line shall be located so the bleed gas will be readily ignited by the pilot and the heat liberated thereby will not adversely affect the normal operation of the safety shutoff system. The terminus of the bleed line shall be securely held in a fixed position relative to the pilot. For manufactured gas, the need for a flame arrester in the bleed line piping shall be determined. [NFPA 54:9.1.20(4)]

508.24.5 Bleed lines from a diaphragm-type valve and vent lines from a gas appliance pressure regulator shall not be connected to a common manifold terminating in a combustion chamber. Bleed lines shall not terminate in positive-pressure-type combustion chambers. [NFPA 54:9.1.20(5)]

508.25 Combination of Appliances. Any combination of gas utilization appliances, attachments, or devices used together in any manner shall comply with the standard that apply to the individual appliance. [NFPA 54:9.1.21]

508.26 Installation Instructions. The installing agency shall conform with the appliance manufacturer’s recommendations

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in completing an installation. The installing agency shall leave the manufacturer’s installation, operating, and maintenance instructions in a location on the premises where they will be readily available for reference and guidance for the Authority Having Jurisdiction, service personnel, and the owner or operator. [NFPA 54:9.1.22]

508.27 Protection of Outdoor Appliances. Gas utilization appliances not listed for outdoor installation but installed outdoors shall be provided with protection to the degree that the environment requires. Appliances listed for outdoor installation shall be permitted to be installed without protection in accordance with the provisions of its listing (See NFPA 54:9.2.1). [NFPA 54:9.1.23]

(The following references were extracted from NFPA 54, National Fuel Gas Code.)

9.2 Accessibility and Clearance.

9.2.1 Accessibility for Service. Gas utilization appliances shall be located with respect to building construction and other equipment so as to permit access to the gas utilization appliance. Sufficient clearance shall be maintained to permit cleaning of heating surfaces; the replacement of filters, blowers, motors, burners, controls, and vent connections; the lubrication of moving parts where necessary; the adjustment and cleaning of burners and pilots; and the proper functioning of explosion vents, if provided. For attic installation, the passageway and servicing area adjacent to the appliance shall be floored.

509.0 Appliances on Roofs.

509.1 General.

  1. Gas utilization appliances on roofs shall be designed or enclosed so as to withstand climactic conditions in the area in which they are installed. Where enclosures are provided, each enclosure shall permit easy entry and movement, shall be of reasonable height, and shall have not less than a thirty (30) inch (760 mm) clearance between the entire service access panel(s) of the appliance and the wall of the enclosure. [NFPA 54:9.4.1.1]
  2. Roofs on which an appliance is to be installed shall be capable of supporting the additional load or shall be reinforced to support the additional load. [NFPA 54:9.4.1.2]
  3. All access locks, screws, and bolts shall be of corrosion resistant material. [NFPA 54:9.4.1.3]

509.2 Installation of Appliances on Roofs.

  1. Gas utilization appliances shall be installed in accordance with its listing and the manufacturer’s installation instructions. [NFPA 54:9.4.2.1]
  2. Appliances shall be installed on a well-drained surface of the roof. Not less than six (6) feet (1.8 m) of clearance shall be available between any part of the appliance and the edge of a roof or similar hazard, or rigidly fixed rails, guards, parapets, or other building structures not less than forty-two (42) inches (1.1 m) in height shall be provided on the exposed side. [NFPA 54:9.4.2.2]
  3. Appliances requiring an external source of electrical power for its operation shall be provided with (1) a readily accessible electrical disconnecting means within sight of the appliance that will completely de-energize the appliance, and (2) a 120-VAC grounding-type receptacle outlet on the roof adjacent to the appliance. The receptacle outlet shall be on the supply side of the disconnect switch. [NFPA 54:9.4.2.3]
  4. Where water stands on the roof of the appliance or in the passageways to the appliance, or where the roof is of a design having a water seal, a suitable platform, walkway, or both shall be provided above the waterline. Such platforms or walkways shall be located adjacent to the appliance and control panels so that the appliance can be safely serviced where water stands on the roof. [NFPA 54:9.4.2.4]

509.3 Access to Appliances on Roofs.

509.3.1 Gas utilization appliances located on roofs or other elevated locations shall be accessible. [NFPA 54:9.4.3.1]

509.3.2 Buildings exceeding fifteen (15) feet (4.6 m) in height shall have an inside means of access to the roof, unless other means acceptable to the Authority Having Jurisdiction are used. [NFPA 54:9.4.3.2]

509.3.3 The inside means of access shall be a permanent, or fold-away inside stairway or ladder, terminating in an enclosure, scuttle, or trap door. Such scuttles or trap doors shall be not less than twenty-two (22) inches x twenty-four (24) inches (560 mm x 610 mm) in size, shall open easily and safely under all conditions, especially snow; and shall be constructed so as to permit access from the roof side unless deliberately locked on the inside.

Not less than six (6) feet (1.8 m) of clearance shall be available between the access opening and the edge of the roof or similar hazard, or rigidly fixed rails or guards not less than forty-two (42) inches (1.1 m) in height shall be provided on the exposed side. Where parapets or other building structures are utilized in lieu of guards or rails, they shall be not less than forty-two (42) inches (1.1 m) in height.[NFPA 54:9.4.3.3]

509.3.4 Permanent lighting shall be provided at the roof access. The switch for such lighting shall be located inside the building near the access means leading to the roof. [NFPA 54:9.4.3.4]

509.4 Appliances in Attics.

509.4.1 Attic Access. An attic in which an appliance is installed shall be accessible through an opening and passageway not less than as large as the largest component of the appliance, and not less than twenty-two (22) inches x thirty (30) inches (560 mm x 760 mm). [NFPA 54:9.5.1]

509.4.2 Where the height of the passageway is less than six (6) feet (1.8 m), the distance from the passageway access to the appliance shall not exceed twenty (20) feet (6.1 m) measured along the centerline of the passageway. [NFPA 54:9.5.1.1]

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509.4.3 The passageway shall be unobstructed and shall have solid flooring not less than twenty-four (24) inches (610 mm) wide from the entrance opening to the appliance. [NFPA 54:9.5.1.2]

509.4.4 Work Platform. A level working platform not less than thirty (30) inches (760 mm) by thirty (30) inches (760 mm) shall be provided in front of the service side of the appliance. [NFPA 54:9.5.2]

509.4.5 Lighting and Convenience Outlet. A permanent 120-volt receptacle outlet and a lighting fixture shall be installed near the appliance. The switch controlling the lighting fixture shall be located at the entrance to the passageway. [NFPA 54:9.5.3]

510.0 Venting of Appliances.

510.1 General. This section recognizes that the choice of venting materials and the methods of installation of venting systems are dependent on the operating characteristics of the appliance. [NFPA 54:12.2.1]

510.1.1 Categories. The operating characteristics of vented gas utilization appliances can be categorized with respect to (1) positive or negative pressure within the venting system, and (2) whether or not the appliance generates flue or vent gases that can condense in the venting system. See NFPA 54, National Fuel Gas Code, Section 3.3 for the definition of these vented appliance categories. [NFPA 54:12.2.2]

510.1.2 Installation. Listed vents shall be installed in accordance with Chapter 5 and the manufacturer’s installation instructions. [NFPA 54:12.2.3]

510.1.3 Appliance vents shall not discharge into any space enclosed by screens having openings less than one-fourth (¼) inch (6.4 mm) mesh.

510.2 Specification for Venting.

510.2.1 Connection to Venting Systems. Except as permitted in Sections 510.2.2 through 510.2.6, gas utilization appliances shall be connected to venting systems. [NFPA 54:12.3.1]

510.2.2 Appliances Not Required to Be Vented. The following appliances shall not be required to be vented [NFPA 54:12.3.2]:

510.2.2.1 Listed ranges. [NFPA 54:12.3.2(1)]

510.2.2.2 Built-in domestic cooking units listed and marked for optional venting. [NFPA 54:12.3.2(2)]

510.2.2.3 Listed hot plates and listed laundry stoves. [NFPA 54:12.3.2(3)]

510.2.2.4 Listed Type 1 clothes dryers shall be exhausted to the outside air. [NFPA 54:12.3.2(4)]

510.2.2.5 A single listed booster-type (automatic instantaneous) water heater, when designed and used solely for the sanitizing rinse requirements of a dishwashing machine, provided that the appliance is installed with the draft hood in place and unaltered if a draft hood is required, in a commercial kitchen having a mechanical exhaust system; where installed in this manner, the draft hood outlet shall be not less than thirty-six (36) inches (910 mm) vertically and six (6) inches (150 mm) horizontally from any surface other than the appliance. [NFPA 54:12.3.2(5)]

510.2.2.6 Listed refrigerators. [NFPA 54:12.3.2(6)]

510.2.2.7 Counter appliances. [NFPA 54:12.3.2(7)]

510.2.2.8 Direct gas-fired makeup air heaters. [NFPA 54:12.3.2(9)]

510.2.2.9 Other appliances listed for unvented use and not provided with flue collars. [NFPA 54:12.3.2(10)]

510.2.2.10 Specialized appliance of limited input such as laboratory burners or gas lights. [NFPA 54:12.3.2(11)]

Where appliances in Sections 510.2.2.5 through 510.2.2.10 are installed so the aggregate input rating exceeds 20 Btu/h/ft.3 (207 W/m3) of room or space in which it is installed, one (1) or more shall be provided with venting systems or other approved means for removing the vent gases to the outside atmosphere so the aggregate input rating of the remaining unvented appliance does not exceed 20 Btu/h/ft.3 (207W/m3). Where the calculation includes the volume of an adjacent room or space, the room or space in which the appliance is installed shall be directly connected to the adjacent room or space by a doorway, archway, or other opening of comparable size that cannot be closed. [NFPA 54:12.3.2]

510.2.3 Ventilating Hoods. Ventilating hoods and exhaust system shall be permitted to be used to vent gas utilization appliances installed in commercial applications (See Section 510.3.5) and to vent industrial appliances, particularly where the process itself requires fume disposal. [NFPA 54:12.3.3]

510.2.4 Well-Ventilated Spaces. The operation of industrial appliances such that its flue gases are discharged directly into a large and well-ventilated space shall be permitted. [NFPA 54:12.3.4]

510.2.5 Direct-Vent Appliances. Listed direct-vent gas utilization appliances shall be considered properly vented where installed in accordance with the terms of its listing, the manufacturer’s instructions, and Section 510.8.3 of this code. [NFPA 54:12.3.5]

510.2.6 Appliances with Integral Vents. Gas utilization appliances incorporating integral venting means shall be considered properly vented where installed in accordance with its listing, the manufacturer’s instructions, and Sections 510.8.1 and 510.8.2 of this code. [NFPA 54:12.3.6]

510.3 Design and Construction.

510.3.1 Minimum Safe Performance. A venting system shall be designed and constructed so as to develop a positive flow adequate to remove flue or vent gases to the outside atmosphere. [NFPA 54:12.1]

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510.3.2 Appliance Draft Requirements. A venting system shall satisfy the draft requirements of the appliance in accordance with the manufacturer’s instructions. [NFPA 54:12.4.1]

510.3.3 Design and Construction. Gas utilization appliances required to be vented shall be connected to a venting system designed and installed in accordance with the provisions of Sections 510.4 through 510.15 of this code. [NFPA 54:12.4.2]

510.3.4 Mechanical Draft Systems.

510.3.4.1 Mechanical draft systems shall be listed and shall be installed in accordance with the terms of their listing and both the appliance and the mechanical draft system manufacturer’s instructions. [NFPA 54:12.4.3.1]

510.3.4.2 Gas utilization appliances requiring venting shall be permitted to be vented by means of mechanical draft systems of either forced or induced draft design. [NFPA 54:12.4.3.2]

Exception: Incinerators.

510.3.4.3 Forced draft systems and portions of induced draft systems under positive pressure during operation shall be designed and installed so as to prevent leakage of flue or vent gases into a building. [NFPA 54:12.4.3.3]

510.3.4.4 Vent connectors serving appliances vented by natural draft shall not be connected into any portion of mechanical draft systems operating under positive pressure. [NFPA 54:12.4.3.4]

510.3.4.5 Where a mechanical draft system is employed, provision shall be made to prevent the flow of gas to the main burners when the draft system is not performing so as to satisfy the operating requirements of the appliance for safe performance. [NFPA 54:12.4.3.5]

510.3.4.6 The exit terminals of mechanical draft systems shall be not less than seven (7) feet (2.1 m) above finished grade where located adjacent to public walkways and shall be located as specified in Sections 510.8.1 and 510.8.2 of this code. [NFPA 54:12.4.3.6]

510.3.5 Ventilating Hoods and Exhaust Systems.

510.3.5.1 Ventilating hoods and exhaust systems shall be permitted to be used to vent gas utilization appliances installed in commercial appliances. [NFPA 54:12.4.4.1]

510.3.5.2 Where automatically operated appliances, other than commercial cooking appliances, are vented through a ventilating hood or exhaust system equipped with a damper or with a power means of exhaust, provisions shall be made to allow the flow of gas to the main burners only when the damper is open to a position to properly vent the appliance and when the power means of exhaust is in operation. [NFPA 54:12.4.4.2]

510.3.6 Circulating Air Ducts and Furnace Plenums. Venting systems shall not extend into or pass through any fabricated air duct or furnace plenum. [NFPA 54-09:12.4.5.1]

510.4 Type of Venting System to Be Used.

510.4.1 The type of venting system to be used shall be in accordance with Table 5-2. [NFPA 54:12.5.1]

510.4.2 Plastic Piping. Plastic piping used for venting appliances listed for use with such venting materials shall be approved. [NFPA 54:12.5.2]

510.4.3 Plastic Vent Joints. Plastic pipe and fittings used to vent appliances shall be installed in accordance with the appliance manufacturer’s installation instructions. Where primer is required, it shall be of a contrasting color. [NFPA 54-09:12.5.3]

510.4.4 Special Gas Vent. Special gas vent shall be listed and installed in accordance with the terms of the special gas vent listing and the manufacturer’s instructions. [NFPA 54:12.5.3]

510.5 Masonry, Metal, and Factory-Built Chimneys.

510.5.1 Listing or Construction.

510.5.1.1 Factory-built chimneys shall be installed in accordance with their listing and the manufacturer’s instructions. Factory-built chimneys used to vent appliances that operate at positive vent pressure shall be listed for such application. [NFPA 54:12.6.1.1]

510.5.1.2 Metal Chimneys shall be built and installed in accordance with NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances. [NFPA 54:12.6.1.2]

510.5.1.3 Masonry chimneys shall be built and installed in accordance with NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid Fuel-Burning Appliances, and lined with approved clay fluelining, a listed chimney lining system, or other approved material that will resist corrosion, erosion, softening, or cracking from vent gases at temperatures up to 1,800°F (982°C). [NFPA 54:12.6.1.3]

Exception: Masonry chimney flues lined with a chimney lining system specifically listed for use with listed gas appliances with draft hoods, Category I appliances, and other gas appliances listed for use with Type B vents shall be permitted. The liner shall be installed in accordance with the liner manufacturer’s instructions and the terms of the listing. A permanent identifying label shall be attached at the point where the connection is to be made to the line. The label shall read: “This chimney liner is for appliances that burn gas only. Do not connect to solid- or liquid-fuel-burning appliances or incinerators.” [NFPA 54:12.6.1.3]

510.5.2 Termination.

510.5.2.1 A chimney for a residential-type or low-heat gas utilization appliance shall extend at least three (3) feet (0.9 m) above the highest point where it passes through the roof of a building and at least two (2) feet (0.6 m) exceeding any portion of a

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building within a horizontal distance of ten (10) feet (3.0 m) (See Figure 5-1). [NFPA 54: 12.6.2.1]

510.5.2.2 A chimney for a medium-heat appliance shall extend at least ten (10) feet (3.0 m) exceeding any portion of any building within twenty-five (25) feet (7.6 m). [NFPA 54: 12.6.2.2]

510.5.2.3 A chimney shall extend at least five (5) feet (1.5 m) above the highest connected appliance draft hood outlet or flue collar. [NFPA 54: 12.6.2.3]

510.5.2.4 Decorative shrouds shall not be installed at the termination of factory-built chimneys except where such shrouds are listed and labeled for use with the specific factory-built chimney system and are installed in accordance with manufacturer’s installation instructions. [NFPA 54: 12.6.2.4]

510.5.3 Size of Chimneys. The effective area of a chimney venting system serving listed gas appliances with draft hoods, Category I appliances, and other appliances listed for use with Type B vents shall be in accordance with one of the following methods [NFPA 54: 12.6.3.1]:

  1. This chapter and NFPA 54, National Fuel Gas Code: Chapter 13. [NFPA 54: 12.6.3.1 (1)]
  2. For sizing an individual chimney venting system for a single appliance with a draft hood, the effective areas of the vent connector and chimney flue shall be not less than the area of the appliance flue collar or draft hood outlet or exceeding seven (7) times the draft hood outlet area. [NFPA 54: 12.6.3.1 (2)]
  3. For sizing a chimney venting system connected to two (2) appliances with draft hoods, the effective area of the chimney flue shall be not less than the area of the larger draft hood outlet plus 50 percent of the area of the smaller draft hood outlet, or exceeding seven (7) times the smallest draft hood outlet area. [NFPA 54:12.6.3.1(3)]
  4. Other approved engineering methods. [NFPA 54:12.6.3.1(5)]
  5. Chimney venting systems using mechanical draft shall be sized in accordance with approved engineering methods. [NFPA 54:12.6.3.1(4)]

510.5.4 Inspection of Chimneys.

  1. Before replacing an existing appliance or connecting a vent connector to a chimney, the chimney passageway shall be examined to ascertain that it is clear and free of obstructions and shall be cleaned if previously used for venting solid- or liquid-fuel-burning appliances or fireplaces. [NFPA 54:12.6.4.1]
  2. Chimneys shall be lined in accordance with NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid-Fuel Burning Appliances. [NFPA 54-09:12.6.4.2]

    Exception: Existing chimneys shall be permitted to have their use continued where an appliance is re-placed by an appliance of similar type, input rating, and efficiency, where the chimney complies with Section 510.5.4, and the sizing of the chimney is in accordance with Section 510.5.3.

    FIGURE 5-1 TYPICAL TERMINATION LOCATIONS FOR CHIMNEYS AND SINGLE-WALL METAL PIPES SERVING RESIDENTIAL-TYPE AND LOW-HEAT APPLIANCE [NFPA 54: FIGURE 12.6.2.1]

    FIGURE 5-1 TYPICAL TERMINATION LOCATIONS FOR CHIMNEYS AND SINGLE-WALL METAL PIPES SERVING RESIDENTIAL-TYPE AND LOW-HEAT APPLIANCE [NFPA 54: FIGURE 12.6.2.1]

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  3. Cleanouts shall be examined to determine that they will remain tightly closed when not in use. [NFPA 54:12.6.4.3]
  4. When inspection reveals that an existing chimney is not safe for the intended application, it shall be repaired, rebuilt, lined, relined, or replaced with a vent or chimney to conform to NFPA 211, Standard for Chimneys, Fireplaces, Vents, and Solid-Fuel-Burning Appliances, and shall be suitable for the appliances to be attached. [NFPA 54:12.6.4.4]

510.5.5 Chimney Serving Appliances Burning Other Fuels.

510.5.5.1 Gas utilization appliances shall not be connected to a chimney flue serving a separate appliance designed to burn solid fuel. [NFPA 54:12.6.5.1]

510.5.5.2 Where one (1) chimney serves gas utilization appliances and liquid fuel-burning appliances, the appliance shall be connected through separate openings or shall be connected through a single opening where joined by a suitable fitting located as close as practical to the chimney. Where two (2) or more openings are provided into one (1) chimney flue, they shall be at different levels. Where the gas utilization appliance is automatically controlled, it shall be equipped with a safety shutoff device. [NFPA 54:12.6.5.2]

FIGURE 5-2 GAS VENT TERMINATION LOCATIONS FOR LISTED CAPS 12 INCH (300 MM) OR LESS IN SIZE NOT LESS THAN 8 FEET (2.4m) FROM A VERTICAL WALL [NFPA 54: FIGURE 12.7.2 AND TABLE 12.7.2]

FIGURE 5-2 GAS VENT TERMINATION LOCATIONS FOR LISTED CAPS 12 INCH (300 MM) OR LESS IN SIZE NOT LESS THAN 8 FEET (2.4m) FROM A VERTICAL WALL [NFPA 54: FIGURE 12.7.2 AND TABLE 12.7.2]

FIGURE 5-3 PLAN VIEW OF PRACTICAL SEPARATION METHOD FOR MULTISTORY GAS VENTING.[NFPA 54: FIGURE 12.7.4.2]

FIGURE 5-3 PLAN VIEW OF PRACTICAL SEPARATION METHOD FOR MULTISTORY GAS VENTING.[NFPA 54: FIGURE 12.7.4.2]

TABLE 5-2
TYPE OF VENTING SYSTEM TO BE USED [NFPA 54: Table 12.5.1]
GAS UTILIZATION APPLIANCESTYPE OF VENTING SYSTEM
Listed Category 1 appliancesType B gas vent (510.6)
Listed appliances equipped with draft hoodChimney (510.5)
 Single-wall metal pipe (510.7)
Appliance listed for Type B gas ventListed chimney lining system for gas venting (510.5.1.3)
 Special gas vent listed for this appliance (510.4.4)
Listed vented wall furnacesType B-W gas vent (510.6, 510.6.2.2)
Category II appliancesAs specified or furnished
Category III appliancesBy manufacturers of listed appliance (510.4.2, 510.4.4)
Category IV appliances 
Incinerators, outdoorsSingle-wall metal pipe (510.7, 510.7.3)
Incinerators, indoorsChimney (510.5)
Appliances that can be converted to use of solid fuel 
Unlisted combination gas- and oil-burning appliances 
Combination gas- and solid-fuel-burning appliances 
Appliances listed for use with chimneys only 
Unlisted appliances 
Listed combination gas- and oil-burning appliancesType L vent (510.6) or chimney (510.5)
Decorative appliance in vented fireplaceChimney [UMC 907.2(3)]
Gas-fired toiletsSingle-wall metal pipe (510.7, NFPA 54: 10.25.3)
Direct-vent appliancesSee 510.2.5
Appliances with integral ventSee 510.2.6

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510.5.5.3 A listed combination gas- and solid-fuel-burning appliance connected to a single chimney flue shall be equipped with a manual reset device to shut off gas to the main burner in the event of sustained backdraft or flue gas spillage. The chimney flue shall be sized to properly vent the appliance. [NFPA 54: 12.6.5.3]

510.5.5.4 A single chimney flue serving a listed combination gas- and oil-burning appliance shall be sized to properly vent the appliance. [NFPA 54: 12.6.5.4]

510.5.6 Support of Chimneys. Portions of chimneys shall be supported for the design and weight of the materials employed. Listed factory-built chimneys shall be supported and spaced in accordance with their listings and the manufacturer’s instructions. [NFPA 54:12.6.6]

510.5.7 Cleanouts. Where a chimney that formerly carried flue products from liquid- or solid-fuel-burning appliances is used with an appliance using fuel gas, an accessible cleanout shall be provided. The cleanout shall have a tight-fitting cover and be installed so its upper edge is at least six (6) inches (150 mm) below the lower edge of the lowest chimney inlet opening. [NFPA 54: 12.6.7]

510.5.8 Space Surrounding Lining or Vent.

510.5.8.1 The remaining space surrounding a chimney liner, gas vent, special gas vent, or plastic piping installed within a masonry chimney flue shall not be used to vent another appliance. [NFPA 54: 12.6.8.1]

Exception: The insertion of another liner or vent within the chimney as provided in this code and the liner or vent manufacturer’s instructions.

510.5.8.2 The remaining space surrounding a chimney liner, gas vent, special gas vent, or plastic piping installed within a masonry chimney flue shall not be used to supply combustion air. [NFPA 54: 12.6.8.2]

Exception: Direct-vent gas-fired appliances designed for installation in a solid-fuel-burning fire-place where installed in accordance with the listing and the manufacturer’s instruction.

510.6 Gas Vents.

510.6.1 A gas vent passing through a roof shall extend through the entire roof flashing, roof jack, or roof thimble and be terminated with a listed termination cap. [NFPA 54: 12.7.2(6)]

510.6.1.1 Type B or Type L vents shall extend in a generally vertical direction with offsets not exceeding 45 degrees, except that a vent system having not more than one 60 degree offset shall be permitted. Any angle greater than 45 degrees from the vertical is considered horizontal. The total horizontal distance of a vent plus the horizontal vent connector serving draft-hood-equipped appliances shall not exceed 75 percent of the vertical height of the vent. [NFPA 54: 12.7.3.2]

Exception: Systems designed and sized as provided in this chapter or in accordance with other approved engineering methods.

510.6.1.2 Screws, rivets and other fasteners shall not penetrate the inner wall of double wall gas vents.

510.6.2 A gas vent shall terminate in accordance with one of the following [NFPA 54: 12.7.2(1)]:

  1. Above the roof surface with a listed cap or listed roof assembly. Gas vents twelve (12) inches (300 mm) in size or smaller with listed caps shall be permitted to be terminated in accordance with Figure 5-2, provided they are at least eight (8) feet (2.4 m) from a vertical wall or similar obstruction. Other gas vents shall terminate not less than two (2) feet (0.6 m) above the highest point where they pass through the roof and at least two (2) feet (0.6 m) exceeding any portion of a building within ten (10) feet (3.1 m). [NFPA 54: 12.7.2(1)(a) and (b)]
  2. Industrial gas utilization appliances as provided in Section 510.2.4. [NFPA 54:12.7.2(1)(c)]
  3. Direct-vent systems as provided in Section 510.2.5. [NFPA 54: 12.7.2(1)(d)]
  4. Appliances with integral vents as provided in Section 510.2.6. [NFPA 54: 12.7.2(1)(e)]
  5. Mechanical draft systems as provided in Section 510.3.4. [NFPA 54: 12.7.2(1)(f)]
  6. Ventilating hoods and exhaust systems as provided in Section 510.3.5. [NFPA 54: 12.7.2(1)(g)]

510.6.2.1 A Type B or a Type L gas vent shall terminate at least five (5) feet (1.5 m) in vertical height above the highest connected appliance draft hood or flue collar.[NFPA 54:12.7.2(2)]

510.6.2.2 A Type B-W gas vent shall terminate at least twelve (12) feet (3.7 m) in vertical height above the bottom of the wall furnace. [NFPA 54:12.7.2(3)]

510.6.2.3 A gas vent extending through an exterior wall shall not terminate adjacent to the wall or below eaves or parapets, except as provided in Sections 510.2.5 and 510.3.4. [NFPA 54: 12.7.2(4)]

510.6.2.4 Decorative shrouds shall not be installed at the termination of gas vents except where such shrouds are listed for use with the specific gas venting system and are installed in accordance with manufacturer’s installation instructions. [NFPA 54: 12.7.2(5)]

510.6.2.5 Gas vents shall extend through the roof flashing, roof jack, or roof thimble and terminate with a listed cap or listed roof assembly. [NFPA 54: 12.7.2(6)]

510.6.2.6 A gas vent shall terminate at least three (3) feet (0.9 m) above a forced air inlet located within ten (10) feet (3.0 m). [NFPA 54: 12.7.2(7)]

510.6.3 Size of Gas Vents. Venting systems shall be sized and constructed in accordance with NFPA 54, National Fuel Gas Code, Chapter 13 or other approved engineering methods and the gas vent and gas appliance manufacturer’s instructions. [NFPA 54: 12.7.3]

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510.6.3.1 Category I Appliances. The sizing of natural draft venting systems serving one (1) or more listed appliances equipped with a draft hood or appliances listed for use with Type B gas vent, installed in a single story of a building, shall be in accordance with one of the following methods [NFPA 54: 12.7.3.1]:

  1. The provisions of this chapter. [NFPA 54: 12.7.3.1(1)]
  2. Vents serving fan-assisted combustion system appliances, or combinations of fan-assisted combustion systems and draft hood-equipped appliances, shall be sized in accordance with this chapter or other approved engineering methods. [NFPA 54: 12.7.3.1(2)]
  3. For sizing an individual gas vent for a single, draft-hood-equipped appliance, the effective area of the vent connector and the gas vent shall be at least the area of the appliance draft hood outlet or exceeding seven (7) times the draft hood outlet area. [NFPA 54: 12.7.3.1(3)]
  4. For sizing a gas vent connected to two (2) appliances with draft hoods, the effective area of the vent shall be at least the area of the larger draft hood outlet plus 50 percent of the area of the smaller draft hood outlet or exceeding seven (7) times the smaller draft hood outlet area. [NFPA 54: 12.7.3.1(4)]
  5. Approved engineering practices. [NFPA 54: 12.7.3.1(5)]

510.6.3.2 Category II, Category III, and Category IV Appliances. The sizing of gas vents for Category II, Category III, and Category IV gas utilization appliances shall be in accordance with the equipment manufacturer’s instructions. [NFPA 54: 12.7.3.3]

510.6.3.3 Sizing. Chimney venting systems using mechanical draft shall be sized in accordance with approved engineering methods. [NFPA 54: 12.7.3.4]

510.6.4 Gas Vents Serving Appliances on More Than One Floor.

510.6.4.1 A common gas vent shall be permitted in multistory installations to vent Category I gas utilization appliances located on more than one (1) floor level, provided the venting system is designed and installed in accordance with approved engineering methods.

For the purpose of this section, crawl spaces, basements, and attics shall be considered as floor levels. [NFPA 54:12.7.4.1]

510.6.4.2 Gas utilization appliances connected to the common vent shall be located in rooms separated from a habitable space. Each of these rooms shall have provisions for an adequate supply of combustion, ventilation, and dilution air that is not supplied from a habitable space (See Figure 5-3). [NFPA 54:12.7.4.2]

The size of the connectors and common segments of multistory venting systems for gas utilization appliances listed for use with Type B double-wall gas vent shall be in accordance with Table 5-14, provided [NFPA 54:12.7.4.3]:

  1. The available total height (H) for each segment of a multistory venting system is the vertical distance between the level of the highest draft hood outlet or flue collar on that floor and the centerline of the next highest interconnection tee (See Figure G.1(K)). [NFPA 54:12.7.4.3(1)]
  2. The size of the connector for a segment is determined from its gas utilization appliance heat input and available connector rise, and shall not be smaller than the draft hood outlet or flue collar size. [NFPA 54:12.7.4.3(2)]
  3. The size of the common vertical vent segment, and of the interconnection tee at the base of that segment, shall be based on the total gas utilization appliance heat input entering that segment and its available total height. [NFPA 54:12.7.4.3(3)]

510.6.5 Support of Gas Vents. Gas vents shall be supported and spaced in accordance with their listings and the manufacturer’s instructions. [NFPA 54:12.7.5]

510.6.6 Marking. In those localities where solid and liquid fuels are used extensively, gas vents shall be permanently identified by a label attached to the wall or ceiling at a point where the vent connector enters the gas vent. The label shall read: “This gas vent is for appliances that burn gas. Do not connect to solid- or liquid-fuel-burning appliances or incinerators. ” The Authority Having Jurisdiction shall determine whether its area constitutes such a locality. [NFPA 54:12.7.6]

510.7 Single-Wall Metal Pipe.

510.7.1 Construction. Single-wall metal pipe shall be constructed of galvanized sheet steel not less than 0.0304 inch (0.7 mm) thick or of other approved, noncombustible, corrosion-resistant material. [NFPA 54:12.8.1]

510.7.2 Cold Climate. Uninsulated single-wall metal pipe shall not be used outdoors in cold climates for venting gas utilization appliances. For venting appliances in regions where the 99 percent winter design temperature is below 32°F (0°C). [NFPA 54:12.8.2]

510.7.3 Termination. The termination of single-wall metal pipe shall comply with the following requirements [NFPA 54:12.8.3]:

510.7.3.1 Single-wall metal pipe shall terminate at least five (5) feet (1.5 m) in vertical height above the highest connected appliance draft hood outlet or flue collar. [NFPA 54:12.8.3(1)]

510.7.3.2 Single-wall metal pipe shall extend at least two (2) feet (0.6 m) above the highest point where it passes through the roof of a building and at least (2) feet (0.6 m) exceeding any portion of a building within a horizontal distance of ten (10) feet (3.1 m) (See Figure 5-1). [NFPA 54:12.8.3(2)]

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510.7.3.3 An approved cap or roof assembly shall be attached to the terminus of a single-wall metal pipe [Also see Section 510.7.4.4]. [NFPA 54:12.8.3(3)]

510.7.4 Installation with Appliances Permitted by 510.4.1.

510.7.4.1 Prohibited Use. Single-wall metal pipe shall not be used as a vent in dwellings and residential occupancies. [NFPA 54-09: 12.8.4.1]

510.7.4.2 Single-wall metal pipe shall be used only for runs directly from the space in which the gas utilization appliance is located through the roof or exterior wall to the outer air. A pipe passing through a roof shall extend without interruption through the roof flashing, roof jacket, or roof thimble. [NFPA 54:12.8.4.1]

510.7.4.3 Single-wall metal pipe shall not originate in any unoccupied attic or concealed space and shall not pass through any attic, inside wall, concealed space, or floor. For the installation of a single-wall metal pipe through an exterior combustible wall, see Section 510.10.14.3. [NFPA 54:12.8.4.2]

510.7.4.4 Single-wall metal pipe used for venting an incinerator shall be exposed and readily examinable for its full length and shall have suitable clearances maintained. [NFPA 54:12.8.4.3]

510.7.4.5 Minimum clearances from single-wall metal pipe to combustible material shall be in accordance with Table 5-3. Reduced clearances from single-wall metal pipe to combustible material shall be as specified for vent connectors in Table 5-4. [NFPA 54:12.8.4.4]

510.7.4.6 Single-wall metal pipe shall not pass through a combustible exterior wall unless guarded at the point of passage by a ventilated metal thimble not smaller than the following [NFPA 54:12.11.14.2]:

  1. For listed appliances equipped with draft hoods and appliances listed for use with Type B gas vents, the thimble shall be at a minimum four (4) inches (100 mm) larger in diameter than the metal pipe. Where there is a run of at least six (6) feet (1.8 m) of metal pipe in the opening between the draft hood outlet and the thimble, the thimble shall be a minimum two (2) inches (50 mm) larger in diameter than the metal pipe.
  2. For unlisted appliances having draft hoods, the thimble shall be a minimum six (6) inches (150 mm) larger in diameter than the metal pipe.
  3. For residential and low-heat appliances, the thimble shall be a minimum twelve (12) inches (300 mm) larger in diameter than the metal pipe.

    Exception: In lieu of thimblc protection, combustible material in the wall shall be removed a sufficient distance from the metal pipe to provide the specified clearance from such metal pipe to combustible material. Any material used to close up such opening shall be noncombustible.

510.7.4.7 Where a single-wall metal pipe passes through a roof constructed of combustible material, a noncombustible, nonventilating thimble shall be used at the point of passage. The thimble shall extend not less than eighteen (18) inches (460 mm) above and six (6) inches (150 mm) below the roof with the annular space open at the bottom and closed only at the top. The thimble shall be sized in accordance with Section 510.7.4.6. [NFPA 54:12.8.4.5]

510.7.5 Size of Single-Wall Metal Pipe. Single-wall metal piping shall comply with the following requirements [NFPA 54:12.8.5]:

510.7.5.1 A venting system of a single-wall metal pipe shall be sized in accordance with one of the following methods and the gas appliance manufacturer’s instructions [NFPA 54:12.8.5(1)]:

  1. For a draft-hood-equipped appliance, in accordance with this chapter. [NFPA 54:12.8.5(1)(a)]
TABLE 5-3
CLEARANCE FOR CONNECTORS [NFPA 54: TABLE 12.8.4.4]
MINIMUM DISTANCE FROM COMBUSTIBLE MATERIAL
APPLIANCELISTED TYPE B GAS VENT MATERIALLISTED TYPE L VENT MATERIALSINGLE-WALL METAL PIPEFACTORY-BUILT CHIMNEY SECTIONS
Listed appliances with draft hoods and appliances listed for use with Type B gas ventsAs listedAs listed6 in.As listed
Residential boilers and furnaces with listed gas conversion burner and with draft hood6 in.6 in.9 in.As listed
Residential appliances listed for use with Type L ventsNot permittedAs listed9 in.As listed
Listed gas-fired toiletsNot permittedAs listedAs listedAs listed
Unlisted residential appliances with draft hoodNot permitted6 in.9 in.As listed
Residential and low-heat appliances other than those aboveNot permitted9 in.18 in.As listed
Medium-heat appliancesNot permittedNot permitted36 in.As listed
For SI units, 1 in.= 25.4 mm.
Note: These clearances shall apply unless the listing of an appliance or connector specifics clearances, in which case the listed clearances shall apply.

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TABLE 5-4
REDUCTION OF CLEARANCES WITH SPECIFIED FORMS OF PROTECTION [NFPA 54: TABLE 10.2.3 (b)]
WHERE THE REQUIRED CLEARANCE WITH NO PROTECTION FROM APPLIANCE, VENT CONNECTOR, OR SINGLE-WALL METAL PIPE IS:
36 in.18 in.12 in.9 in.6 in.
ALLOWABLE CLEARANCES WITH SPECIFIED PROTECTION (in.)
TYPE OF PROTECTION APPLIED TO AND COVERING SURFACES OF COMBUSTIBLE MATERIAL WITHIN THE DISTANCE SPECIFIED AS THE REQUIRED CLEARANCE WITH NO PROTECTION [SEE FIGURES 5-4 THROUGH 5-6]USE COLUMN 1 FOR CLEARANCE ABOVE APPLIANCE OR HORIZONTAL CONNECTOR. COLUMN 2 FOR CLEARANCES FROM APPLIANCES, VERTICAL CONNECTOR, AND SINGLE-WALL METAL PIPE
ABOVE COLUMN 1SIDES AND REAR COLUMN 2ABOVE COLUMN 1SIDES AND REAR COLUMN 2ABOVE COLUMN 1SIDES AND REAR COLUMN 2ABOVE COLUMN 1SIDES AND REAR COLUMN 2ABOVE COLUMN 1SIDES AND REAR COLUMN 2
(1) 3½ in. thick masonry wall without ventilated air space--24--12--9--6--5
(2) ½ in. insulation board over 1 in. glass fiber or mineral wool batts2418129966543
(3) 0.024 sheet metal over 1 in. glass fiber or mineral wool batts reinforced with wire on rear face with ventilated air space181296645333
(4) 3½ in. thick masonry wall with ventilated air space--12--6--6--6--6
(5) 0.024 sheet metal with ventilated air space181296645332
(6) ½ in. thick insulation board with ventilated air space181296645333
(7) 0.024 sheet metal with ventilated air space over 0.024 sheet metal with 0.024 sheet metal with ventilated air space181296645333
(8) 1 in. glass fiber or mineral wool batts sandwiched between two sheets 0.024 sheet metal with ventilated air space181296645333
For SI units, 1 in. = 25.4 mm.
Notes:
1 Reduction of clearances from combustible materials shall not interfere with combustion air, draft hood clearance and relief, and accessibility of servicing.
2 Clearances shall be measured from the outer surface of the combustible material to the nearest point on the surface of the appliance, disregarding any intervening protection applied to the combustible material.
3 Spacers and ties shall be of noncombustible material. No spacer or tie shall be used directly opposite the appliance or connector.
4 Where clearance reduction systems use a ventilated air space, adequate provision for air circulation shall be provided as described. [See Figure 5-5 and Figure 5-6.]
5 There shall be at least one (1) in. (25 mm) between clearance reduction systems and combustible walls and ceilings for reduction systems using a ventilated air space.
6 Where a wall protector is mounted on a single flat wall away from corners, it shall have a minimum one (1) inch (25 mm) air gap. To provide adequate air circulation, the bottom and top edges, or only the side and top edges, or edges shall be left open.
7 Mineral wool batts (blanket or board) shall have a minimum density of eight (8) Ib/ft.3 (128 kg/m 3) and a minimum melting point of 1500° F (816°C).
8 Insulation material used as part of a clearance reduction system shall have a thermal conductivity of 1.0 Btu in./ft2 h-°F (0.144 W/m-K) or less.
9 There shall be at least (1) inch (25 mm) between the appliance and the protector. In no case shall the clearance between the appliance and the combustible surface be reduced below that allowed in this table.
10 Clearances and thicknesses are minimum; larger clearances and thicknesses are acceptable.
11 Listed single-wall connectors shall be installed in accordance with the terms of their listing and the manufacturer's instructions.

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FIGURE 5-4 EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM GAS APPLIANCES OR VENT CONNECTORS [NFPA 54: FIGURE 10.3.2.2(1)]

FIGURE 5-4 EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM GAS APPLIANCES OR VENT CONNECTORS [NFPA 54: FIGURE 10.3.2.2(1)]

FIGURE 5-5 WALL PROTECTION REDUCTION SYSTEM.[NFPA 54: FIGURE 10.3.2.2(2)]

FIGURE 5-4 EXTENT OF PROTECTION NECESSARY TO REDUCE CLEARANCES FROM GAS APPLIANCES OR VENT CONNECTORS [NFPA 54: FIGURE 10.3.2.2(1)]

FIGURE 5-5 WALL PROTECTION REDUCTION SYSTEM.[NFPA 54: FIGURE 10.3.2.2(2)]

FIGURE 5-6 MASONRY CLEARANCE REDUCTION SYSTEM.[NFPA 54: FIGURE 10.3.2.2(3)]

FIGURE 5-6 MASONRY CLEARANCE REDUCTION SYSTEM.[NFPA 54: FIGURE 10.3.2.2(3)]

  1. For a venting system for a single appliance with a draft hood, the areas of the connector and the pipe each shall be at least the area of the appliance flue collar or draft hood outlet, whichever is smaller. The vent area shall not exceed seven (7) times the draft hood outlet area. [NFPA 54:12.8.5(1)(b)]
  2. Other approved engineering methods. [NFPA 54:12.8.5(1)(c)]

510.7.5.2 Where a single wall metal pipe is used and has a shape other than round, it shall have an equivalent effective area equal to the effective area of the round pipe for which it is substituted, and the internal dimension of the pipe shall be atleast two (2) inches (50 mm). [NFPA 54:12.8.5(2)].

510.7.5.3 The vent cap or a roof assembly shall have a venting capacity at least that of the pipe to which it is attached. [NFPA 54:12.8.5(3)]

510.7.6 Support of Single-Wall Metal Pipe. portions of single wall metal pipe shall be supported for the design and weight of the material employed. [NFPA 54:12.8.6]

510.7.7 Marking. Single-wall metal pipe shall comply with the marking provisions of Section 510.6.6. [NFPA 54:12.8.7]

510.8 Through-the -Wall Vent Termination (See Figure 5-12).

510.8.1 A mechanical draft venting system shall terminate at least three (3) feet (0.9 m) above any forced air inlet located within ten (10) feet (3.1 m). [NFPA 54:12.9.1]

Exceptions:

  1. This provision shall not apply to the combustion air intake of a direct-vent appliance.87
  2. This provision shall not apply to the separation of the integral outdoor air inlet and flue gas discharge of listed outdoor appliances.

510.8.2 A mechanical draft venting system of other than direct-vent type shall terminate at least four (4) feet (1.2 m) below, four (4) feet (1.2 m). horizontally from, or one (1) foot (300 mm) above any door, operable window, or gravity air inlet into any building. The bottom of the vent terminal shall be located at least twelve (12) inches (300 mm) above finished grade. [NFPA 54:12.9.2]

510.8.3 The vent terminal of a direct-vent appliance with an input of 10,000 Btu/h (3 k W) or less shall be located at least (6) inches (150 mm) from any air opening into a building, and such an appliance with an input over 10,000 Btu/h (3 kW) but not over 50,000 Btu/h (14.7 kW) shall be installed with a nine (9) inch (230 mm) vent termination clearance, and an appliance with an input over 50,000 Btu/h (14.7 kW) shall have at least a twelve (12) inch (300 mm) vent termination clearance. The bottom of the vent terminal and the air intake shall be located at least twelve (12) inches (300 mm) above finished grade. [NFPA 54:12.9.3]

510.8.4 Through-the-wall vents for Category II and Category IV appliances and noncategorized condensing appliances shall not terminate over public walkways or over an area where condensate or vapor could create a nuisance or hazard or could be detrimental to the operation of regulators, relief valves, or other equipment. Where local experience indicates that condensate is a problem with Category I and Category III appliances, this provision shall also apply.

Drains for condensate shall be installed in accordance with the manufacturer’s installation instructions. [NFPA 54-09:12.9.4]

510.8.5 Where vents, including those for direct-vent appliances or combustion air intake pipes, penetrate outside walls of buildings, the annular spaces around such penetrations shall be permanently sealed using approved materials to prevent entry of combustion products into the building. [NFPA 54-09:12.9.5]

510.9 Condensation Drain.

510.9.1 Provision shall be made to collect and dispose of condensate from venting systems serving Category II and Category IV gas utilization appliances and noncategorized condensing appliances in accordance with Section 510.8.4. [NFPA 54:12.10.1]

510.9.2 Where local experience indicates that condensation is a problem, provision shall be made to drain off and dispose of condensate from venting systems serving Category I and Category III gas utilization appliances in accordance with Section 510.8.4. [NFPA 54:12.10.2]

510.10 Vent Connectors for Category I Gas Utilization Appliances.

510.10.1 Where Required. A vent connector shall be used to connect gas utilization appliances to a gas vent, chimney, or single-wall metal pipe, except where the gas vent, chimney, or single-wall metal pipe is directly connected to the appliance. [NFPA 54:12.11.1]

510.10.2 Materials.

510.10.2.1 A vent connector shall be made of noncombustible, corrosion resistant material capable of withstanding the vent gas temperature produced by the gas utilization appliance and of sufficient thickness to withstand physical damage. [NFPA 54:12.11.2.1]

510.10.2.2 Where the vent connector used for gas utilization appliances having a draft hood or a Category I appliance is located in or passes through an unconditioned area, that portion of the vent connector shall be listed Type B, Type L, or listed vent material having equivalent insulation qualities. [NFPA 54:12.11.2.2]

Exception:

Single-wall metal pipe located within the exterior walls of the building and located in areas having a local 99 percent winter design temperature of 5°F (-15°C) or higher.

510.10.2.3 Where the vent connector used for gas utilization appliances having a draft hood or a Category I appliance is located in or passes through attics and crawl spaces, that portion of the vent connector shall be listed Type B, Type L, or listed vent material having equivalent insulation qualities. [NFPA 54:12.11.2.3]

510.10.2.4 Vent connectors for residential-type appliances shall comply with the following [NFPA 54:12.11.2.4]:

  1. Vent connectors for listed gas appliances having draft hoods and for appliances having draft hoods and equipped with listed conversion burners that are not installed in attics, crawl spaces, or other unconditioned areas shall be one of the following [NFPA 54:12.11.2.4(1)]:
    1. Type B or Type L vent material.
    2. Galvanized sheet steel at least 0.018 inches (0.46 mm) thick.
    3. Aluminum (1100 or 3003 alloy or equivalent) sheet at least 0.027 inches (0.69 mm) thick.
    4. Stainless steel sheet at least 0.012 inches (0.31 mm) thick.
    5. Smooth interior wall metal pipe having resistance to heat and corrosion equal to or exceeding that of b, c, or d above.
    6. A listed vent connector.
  2. Vent connectors shall not be covered with insulation.

    Exception: Listed insulated vent connectors shall be installed in accordance with the manufacturer’s installation instructions. [NFPA 54:12.11.2.4(2)]

510.10.2.5 A vent connector for non-residential lowheat appliance shall be a factory-built chimney section or steel pipe having resistance to heat and corrosion equivalent to that for the appropriate galvanized pipe as specified in Table 5-5. Factory-built

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chimney sections shall be joined together in accordance with the chimney manufacturer’s instructions. [NFPA 54:12.11.2.5]

TABLE 5-5
MINIMUM THICKNESS FOR GALVANIZED STEEL VENT CONNECTOR FOR LOW-HEAT APPLIANCES [NFPA 54:TABLE 12.11.2.5]
DIAMETER OF CONNECTOR
(in.)
MINIMUM THICKNESS
(in.)*
*For SI units, 1 in. = 25.4 mm; 1 in.2 = 645 mm2.
Less than 60.019
6 to less than 100.023
10 to 12 inclusive0.029
14 to 16 inclusive0.034
Over 160.056

510.10.2.6 Vent connectors for medium-heat appliances and commercial and industrial incinerators shall be constructed of factory-built, medium-heat chimney sections or steel of a thickness at least that specified in Table 5-6 and shall comply with the following [NFPA 54:12.11.2.6]:

  1. A steel vent connector for appliances with a vent gas temperature exceeding 1,000°F (538°C) measured at the entrance to the connector shall be lined with medium-duty fire brick (ASTM C 64, Specification for Refractories for Incinerators and Boilers, Type F) or the equivalent.
  2. The lining shall be at least two and one-half (2½) inches (64 mm) thick for a vent connector having a diameter or greatest cross-sectional dimension of eighteen (18) inches (460 mm) or less.
  3. The lining shall be at least four and one-half (4½) inches (110 mm) thick laid on the four and one-half (4½) inch (110 mm) bed for a vent connector having a diameter or cross-sectional dimension exceeding eighteen (18) inches (460 mm).
  4. Factory-built chimney sections, if employed, shall be joined together in accordance with the chimney manufacturer's instructions.
TABLE 5-6
MINIMUM THICKNESS FOR STEEL VENT CONNECTORS FOR
MEDIUM -HEAT APPLIANCES AND
COMMERCIAL AND
INDUSTRIAL
INCINERATORS [NFPA 54: TABLE 12.11.2.6]
VENT CONNECTOR SIZE
DIAMETER (in.)AREA (in.2)MINIMUM THICKNESS (in.)
For SI units, 1 in. = 25.4 mm; 1 in.2 = 645 mm2.
Up to 14Up to 1540.053
Over 14 to 16154 to 2010.067
Over 16 to 18201 to 2540.093
Over 18Exceeding 2540.123

510.10.3 Size of Vent Connector.

510.10.3.1 A vent connector for gas utilization appliances with a single draft hood or for a Category I fan-assisted combustion system appliance shall be sized and installed in accordance with this chapter or other approved engineering methods. [NFPA 54:12.11.3.1]

510.10.3.2 For a single appliance having more than one (1) draft hood outlet or flue collar, the manifold shall be constructed according to the instructions of the appliance manufacturer. Where there are no instructions, the manifold shall be designed and constructed in accordance with approved engineering practices. As an alternate method, the effective area of the manifold shall equal the combined area of the flue collars or draft hood outlets, and the vent connectors shall have a minimum one (1) foot (0.3 m) rise. [NFPA 54:12.11.3.2]

510.10.3.3 Where two (2) or more gas appliances are connected to a common vent or chimney, each vent connector shall be sized in accordance with this chapter or other approved engineering methods. [NFPA 54:12.11.3.3] As an alternative method applicable only when the appliances are draft-hood-equipped, each vent connector shall have an effective area at least the area of the draft hood outlet of the appliance to which it is connected. [NFPA 54:12.11.3.4]

510.10.3.4 Where two (2) or more gas appliances are vented through a common vent connector or vent manifold, the common vent connector or vent manifold shall be located at the highest level consistent with available head-room and clearance to combustible material and shall be sized in accordance with this chapter or other approved engineering methods. [NFPA 54:12.11.3.5]

As an alternate method applicable only where there are two (2) draft-hood-equipped appliances, the effective area of the common vent connector or vent manifold and junction fittings shall be at least the area of the larger vent connector plus 50 percent of the areas of smaller flue collar outlets. [NFPA 54:12.11.3.6]

510.10.3.5 Where the size of a vent connector is increased to overcome installation limitations and obtain connector capacity equal to the appliance input, the size increase shall be made at the appliance draft hood outlet. [NFPA 54:12.11.3.7]

510.10.4 Two or More Appliances Connected to a Single Vent.

510.10.4.1 Where two (2) or more openings are provided into one (1) chimney flue or vent, the openings shall either be at different levels, or the connectors shall be attached to the vertical portion of the chimney or vent at an angle of 45 degrees or less relative to the vertical. [NFPA 54-09:12.11.4.1]

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510.10.4.2 Where two (2) or more vent connectors enter a common gas vent, chimney flue, or single-wall metal pipe, the smaller connector shall enter at the highest level consistent with the available head-room or clearance to combustible material. [NFPA 54:12.11.4.1]

510.10.4.3 Vent connectors serving Category I appliances shall not be connected to any portion of a mechanical draft system operating under positive static pressure, such as those serving Category III or Category IV appliances. [NFPA 54:12.11.4.2]

510.10.5 Clearance. Minimum clearances from vent connectors to combustible material shall be in accordance with Table 5-3. [NFPA 54:12.11.5]

Exception:

The clearance between a vent connector and combustible material shall be permitted to be reduced where the combustible material is protected as specified for vent connectors in Table 5-4.

510.10.6 Avoid Unnecessary Bends. A vent connector shall be installed so as to avoid turns or other construction features that create excessive resistance to flow of vent gases. [NFPA 54:12.11.6]

510.10.7 Joints. Joints between sections of connector piping and connections to flue collars or draft hood outlets shall be fastened in accordance with one of the following methods [NFPA 54:12.11.7]:

  1. By sheet metal screws.
  2. Vent connectors of listed vent material shall be assembled and connected to flue collars or draft hood outlets in accordance with the manufacturer’s instructions.
  3. Other approved means.

510.10.8 Slope. A vent connector shall be installed with out any dips or sags and shall slope upward toward the vent or chimney not less than one-quarter (¼) inch/foot (20 mm/m). [NFPA 54:12.11.8]

Exception:

Vent connectors attached to a mechanical draft system installed in accordance with the appliance and draft system manufacturer’s instructions.

510.10.9 Length of Vent Connector.

510.10.9.1 A vent connector shall be as short as practical and the gas utilization appliance located as close as practical to the chimney or vent. [NFPA 54:12.11.9.1]

510.10.9.2 The maximum horizontal length of a single-wall connector shall be 75 percent of the height of the chimney or vent except for engineered systems. [NFPA 54-09:12.11.9.2]

510.10.9.3 The maximum horizontal length of a Type B double-wall connector shall be 100 percent of the height of the chimney or vent, except for engineered systems. The maximum length of an individual connector for a chimney or vent system serving multiple appliances, from the appliance out let to the junction with the common vent or another connector, shall be 100 percent of the height of the chimney or vent. [NFPA 54:12.11.9.3]

510.10.10 Support. A vent connector shall be supported for the design and weight of the material employed to maintain clearances and prevent physical damage and separation of joints. [NFPA 54:12.11.10]

510.10.11 Chimney Connection. Where entering a flue in a masonry or metal chimney, the vent connector shall be installed above the extreme bottom to avoid stoppage. Where a thimble or slip joint is used to facilitate removal of the connector, the connector shall be firmly attached to or inserted into the thimble or slip joint to prevent the connector from falling out. Means shall be employed to prevent the connector from entering so far as to restrict the space between its end and the opposite wall of the chimney flue. [NFPA 54:12.11.11]

510.10.12 Inspection. The entire length of a vent connector shall be readily accessible for inspection, cleaning, and replacement. [NFPA 54:12.11.12]

510.10.13 Fireplaces. A vent connector shall not be connected to a chimney flue serving a fireplace unless the fireplace flue opening is permanently sealed. [NFPA 54:12.11.13]

510.10.14 Passage through Ceilings, Floors, or Walls.

510.10.14.1 A vent connector shall not pass through any ceiling, floor or fire-resistance-rated wall. A single-wall metal pipe connector shall not pass through any interior wall.

Exception:

Vent connectors made of listed Type B or Type L vent material and serving listed appliances with draft hoods and other appliances listed for use with Type B gas vents that pass through walls or partitions constructed of combustible material shall be installed with not less than the listed clearance to combustible material.

510.10.14.2 Vent connectors for medium-heat appliances shall not pass through walls or partitions constructed of combustible material. [NFPA 54:12.11.14.3]

510.11 Vent Connectors for Category II, Category III, and Category IV Gas Utilization Appliances (See Section 510.4). [NFPA 54:12.12]

510.12 Draft Hoods and Draft Controls.

510.12.1 Appliances Requiring Draft Hoods. Vented gas utilization appliances shall be installed with draft hoods. [NFPA 54:12.13.1]

Exception:

Dual oven-type combination ranges; incinerators; direct-vent appliances; fan- assisted combustion system appliances; appliances requiring chimney draft for operation; single firebox boilers equipped with conversion burners with inputs exceeding 400,000 Btu/h (117 kW); appliances equipped with blast, power, or pressure burners that are not listed for use with draft hoods; and appliances designed for forced venting.

510.12.2 Installation. A draft hood supplied with or forming a part of listed vented gas utilization appliances

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shall be installed without alteration, exactly as furnished and specified by the appliance manufacturer. [NFPA 54:12.13.2]

If a draft hood is not supplied by the appliance manufacturer where one (1) is required, a draft hood shall be installed, be of a listed or approved type, and, in the absence of other instructions, be of the same size as the appliance flue collar. Where a draft hood is required with a conversion burner, it shall be of a listed or approved type. [NFPA 54:12.13.2.1]

Where it is determined that a draft hood of special design is needed or preferable for a particular installation, the installation shall be in accordance with the recommendations of the appliance manufacturer and shall be approved by the Authority Having Jurisdiction. [NFPA 54:12.13.2.2]

510.12.3 Draft-Control Devices. Where a draft-control device is part of the gas utilization appliance or is supplied by the appliance manufacturer, it shall be installed in accordance with the manufacturer, it shall be installed in accordance with the manufacturer's instructions. In the absence of manufacturer's instructions, the device shall be attached to the flue collar of the appliance or as near to the appliance as practical. [NFPA 54:12.13.3]

510.12.4 Additional Devices. Gas utilization appliances (except incinerators) requiring controlled chimney draft shall be permitted to be equipped with a listed double-acting barometric draft regulator installed and adjusted in accordance with the manufacturer's instructions. [NFPA 54:12.13.4]

510.12.5 Location. Draft hoods and barometric draft regulators shall be installed in the same room or enclosure as the appliance in such a manner as to prevent any difference in pressure between the hood or regulator and the combustion air supply. [NFPA 54:12.13.5]

510.12.6 Positioning. Draft hoods and draft regulators shall be installed in the position for which they were designed with reference to the horizontal and vertical planes and shall be located so that the relief opening is not obstructed by any part of the appliance or adjacent construction. The appliance and its draft hood shall be located so that the relief opening is accessible for checking vent operation. [NFPA 54:12.13.6]

510.12.7 Clearance. A draft hood shall be located so that its relief opening is at least six (6) inches (150 mm) from any surface except that of the appliance it serves and the venting system to which the draft hood is connected. Where a greater or lesser clearance is indicated on the appliance label, the clearance shall not be less than that specified on the label. Such clearances shall not be reduced. [NFPA 54:12.13.7]

510.13 Manually Operated Dampers. A manually operated damper shall not be placed in any appliance vent connector. Fixed baffles shall not be classified as manually operated dampers. [NFPA 54:12.14]

510.14 Automatically Operated Vent Dampers. An automatically operated vent damper shall be of a listed type. [NFPA 54:12.15]

510.15 Obstructions. Devices that retard the flow of vent gases shall not be installed in a vent connector, chimney, or vent. The following shall not be considered as obstructions [NFPA 54:12.16]:

  1. Draft regulators and safety controls specifically listed for installation in venting systems and installed in accordance with the terms of their listing.
  2. Approved draft regulators and safety controls designed and installed in accordance with approved engineering methods.
  3. Listed heat reclaimers and automatically operated vent dampers installed in accordance with the terms of their listing.
  4. Vent dampers serving listed appliances installed in accordance with this chapter or other approved engineering methods.
  5. Approved economizers, heat reclaimers, and recuperators installed in venting systems of appliances not required to be equipped with draft hoods, provided the gas utilization appliance manufacturer's instructions cover the installation of such a device in the venting system and performance in accordance with Sections 510.3.1 and 510.3.2 is obtained.

511.0 Sizing of Category I Venting Systems.

511.1 These venting tables shall not be used where obstructions (See Section 510.15) are installed in the venting system. The installation of vents serving listed appliances with vent dampers shall be in accordance with the appliance manufacturer's instructions or in accordance with the following [NFPA 54:13.1.1]:

  1. The maximum capacity of the vent system shall be determined using the NAT Max column.
  2. The minimum capacity shall be determined as though the appliance were a fan-assisted appliance, using the FAN Min column to determine the minimum capacity of the vent system. Where the corresponding “FAN Min” is “NA” the vent configuration shall not be permitted and an alternative venting configuration shall be utilized.

511.1.1 Where the vent size determined from the tables is smaller than the appliance draft hood outlet or flue collar, the use of the smaller size shall be permitted provided that the installation complies with the following requirements [NFPA 54:13.1.2]:

  1. The total vent height (H) is at least ten (10) feet (3 m).
  2. Vents for appliance draft hood outlets or flue collars twelve (12) inches (300 mm) in diameter or smaller are not reduced more than one (1) table size.
  3. Vents for appliance draft hood outlets or flue collars exceeding twelve (12) inches (300 mm) in diameter are not reduced more than two (2) table sizes.
  4. The maximum capacity listed in the tables for a fan-assisted appliance is reduced by 10 percent (0.90 maximum table capacity).91
  5. The draft hood outlet exceeds four (4) inches (100 mm) in diameter. Do not connect a three (3) inch (80 mm) diameter vent to a four (4) inch (100 mm) diameter draft hood outlet. This provision shall not apply to fan-assisted appliances.

511.1.2 Elbows. Single-appliance venting configurations with zero (0) lateral lengths in Tables 5-8, 5-9, and 5-12 shall have no elbows in the venting system. Single-appliance venting with lateral lengths, include allowance for two (2) 90 degree elbows. For each additional elbow up to and including 45 degrees, the maximum capacity listed in the venting tables shall be reduced by 5 percent. For each additional elbow exceeding 45 degrees up to and including 90 degrees, the maximum capacity listed in the venting tables shall be reduced by 10 percent. [NFPA 54:13.1.3]

Where multiple offsets occur in a vent, the total lateral length of all offsets combined shall not exceed that specified in Tables 5–8 through 5–12. [NFPA 54-09:13.1.3]

511.1.3 Zero (0) lateral (L) shall apply only to a straight vertical vent attached to a top outlet draft hood or flue collar. [NFPA 54:13.1.4]

511.1.4 Sea level input ratings shall be used when determining maximum capacity for high-altitude installation. Actual input (derated for altitude) shall be used for determining minimum capacity for high-altitude installation. [NFPA 54:13.1.5]

511.1.5 For appliances with more than one (1) input rate, the minimum vent capacity (FAN Min) determined from the tables shall be less than the lowest appliance input rating, and the maximum vent capacity (FAN Max/NAT Max) determined from the tables shall exceed the highest appliance rating input. [NFPA 54:13.1.6]

511.1.6 Listed corrugated metallic chimney linear systems in masonry chimneys shall be sized by using Tables 5-8 or 5-9 for Type B vents with the maximum capacity reduced by 20 percent (0.80 maximum capacity) and the minimum capacity as shown in Tables 5-8 or 5-9.

Corrugated metallic liner systems installed with bends or offsets shall have their maximum capacity further reduced in accordance with Section 511.1.2. The 20 percent reduction for corrugated metallic chimney liner systems includes an allowance for one (10 long radius 90 degree turn at the bottom of the liner. [NFPA 54:13.1.7]

511.1.7 Connection to Chimney Liners. Connections between chimney liners and listed double-wall connectors shall be made with listed adapters designed for such purposes. [NFPA 54:13.1.8]

511.1.8 Vertical Vent Upsizing 7 x Rule. Where the vertical vent has a larger diameter than the vent connector, the vertical vent diameter shall be used to determine the minimum vent capacity, and the connector diameter shall be used to determine the maximum vent capacity. The flow area of the vertical vent shall not exceed seven (7) times the flow area of the listed appliance categorized vent area, flue collar area, or draft hood outlet area unless designed in accordance with approved engineering methods. [NFPA 54:13.1.9]

511.1.9 Draft Hood Conversion Accessories. Draft hood conversion accessories for use with masonry chimneys venting listed Category I fan-assisted appliances shall be listed and installed in accordance with the listed accessory manufacturer's installation instructions. [NFPA 54:13.1.10]

511.1.10 Tables 5-8 through 5-12 shall be used for chimneys and vents not exposed to the outdoors below the roof line. A Type B vent or listed chimney lining system passing through an unused masonry chimney flue shall not be considered to be exposed to the outdoors. A Type B vent passing through an unventilated enclosure or chase insulated to a value of at least R8 shall not be considered to be exposed to the outdoors. Table 5-10 in combination with Table 5-13 shall be used for clay-tile-lined exterior masonry chimneys, provided the following are met [NFPA 54:13.1.11]:

  1. The vent connector is Type B double wall.
  2. The vent connector length is limited to one and one-half (1½) feet for each inch (18 mm/mm) of vent connector diameter.
  3. The appliance is draft-hood-equipped.
  4. The input rating is less than the maximum capacity given in Table 5-10.
  5. For a water heater, the outdoor design temperature shall be not less than 5°F (-15°C).
  6. For a space-heating appliance, the input rating exceeds the minimum capacity given by Table 5-13.

511.1.11 Corrugated vent connectors shall not be smaller than the listed appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter. [NFPA 54:13.1.12]

511.1.12 Vent connectors shall not be upsized more than two (2) sizes exceeding the listed appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter. [NFPA 54:13.1.13]

511.1.13 In a single run of vent or vent connector, more than one (1) diameter and type shall be permitted to be used, provided that the sizes and types are permitted by the tables. [NFPA 54:13.1.14]

511.1.14 Interpolation shall be permitted in calculating capacities for vent dimensions that fall between table entries (See Part II-Example G.1.3). [NFPA 54:13.1.15]

511.1.15 Extrapolation beyond the table entries shall not be permitted. [NFPA 54:13.1.16]

511.1.16 For vent heights lower than six (6) feet and exceeding vent heights shown in the tables, engineering methods shall be used to calculate vent capacities. [NFPA 54:13.1.17]

92

511.2 Additional Requirements to Multiple Appliance Vent Table 5-14 through Table 5-22.

511.2.1 Obstructions and Vent Damper. These venting tables shall not be used where obstructions (See Section 510.15) are installed in the venting system. The installation of vents serving listed appliances with vent dampers shall be in accordance with the appliance manufacturer’s instructions or in accordance with the following [NFPA 54:13.2.1]:

  1. The maximum capacity of the vent connector shall be determined using the NAT Max column.
  2. The maximum capacity of the vertical vent or chimney shall be determined using the FAN + NAT column when the second appliance is a fan-assisted appliance, or the NAT+ NAT column when the second appliance is equipped with a draft hood.
  3. The minimum capacity shall be determined as if the appliance were a fan-assisted appliance.
    1. The minimum capacity of the vent connector shall be determined using the FAN Min column.
    2. The FAN + FAN column shall be used when the second appliance is a fan-assisted appliance, and the FAN + NAT column shall be used when the second appliance is equipped with a draft hood, to determine whether the vertical vent or chimney configuration is not permitted (NA). Where the vent configuration is NA, the vent configuration shall not be permitted and an alternative venting configuration shall be utilized.

511.2.2 The vent connector horizontal length shall be eighteen (18) inches/inch (18 mm/mm) of connector diameter as shown in Table 5-7. [NFPA 54:13.2.2]

511.2.3 The vent connector shall be routed to the vent utilizing the shortest possible route. Connectors with longer horizontal lengths than those listed in Table 5-7 are permitted under the following conditions [NFPA 54:13.2.3]:

  1. The maximum capacity (FAN Max or NAT Max) of the vent connector shall be reduced 10 percent for each additional multiple of the length listed in Table 5-7. For example, the length listed for a four (4) inch (100 mm) connector shall not exceed six (6) feet (1.8 m). With a connector length exceeding six (6) feet (1.8 m) but not exceeding twelve (12) feet (3.7 m), the maximum capacity must be reduced by 10 percent (0.90 maximum vent connector capacity). With a connector length exceeding twelve (12) feet (3.7 m) but not exceeding eighteen (18) feet (5.5 m), the maximum capacity must be reduced by 20 percent (0.80 maximum vent capacity) [NFPA 54:13.2.3(1)].
  2. For a connector serving a fan-assisted appliance, the minimum capacity (FAN Min) of the connector shall be determined by referring to the corresponding single appliance table. For Type B double-wall connectors, Table 5-8 shall be used. For single-wall connectors, Table 5-9 shall be used. The height (H) and lateral (L) shall be measured according to the procedures for a single appliance vent, as if the other appliances were not present. [NFPA 54:13.2.3(2)]
TABLE 5-7
VENT CONNECTOR MAXIMUM LENGTH
[NFPA 54:TABLE 13.2.2]
CONNECTOR DIAMETER MAXIMUM (in.)CONNECTOR HORIZONTAL LENGTH (ft.)
For SI units, 1 in. = 25.4 mm; 1 ft. = 0.305 m.
3
46
5
69
710½
812
913½
1015
1218
1421
1624
1827
2030
2233
2436

511.2.4 Where the vent connectors are combined prior to entering the vertical portion of the common vent to form a common vent manifold, the size of the common vent manifold and the common vent shall be determined by applying a 10 percent reduction (.90 x maximum common vent capacity) to the Common Vent Capacity part of the common vent tables. The length of the common vent connector manifold (LM) shall not exceed eighteen (18) inches/inch (18 mm/mm) of common vent connector manifold diameter (D) (See Part II-Figure G.1(k)). [NFPA 54:13.2.4]

511.2.5 Vent Offset. Where the common vertical vent is offset, the maximum capacity of the common vent shall be reduced in accordance with Section 511.2.6, and the horizontal length of the common vent offset shall not exceed eighteen (18) inches/inch (18 mm/mm) of common vent diameter. Where multiple offsets occur in a common vent, the total horizontal length of offsets combined shall not exceed eighteen (18) inches/inch (18 mm/mm) of common vent diameter. [NFPA 54:13.2.5]

511.2.6 For each elbow up to and including 45 degrees in the common vent, the maximum common vent capacity listed in the venting tables shall be reduced by 5 percent. For each elbow exceeding 45 degrees up to and including 90 degrees, the maximum common vent capacity listed in the venting tables shall be reduced by 10 percent. [NFPA 54:13.2.6]

511.2.7 Common Vent Minimum Size. The cross-sectional area of the common vent shall be equal to or exceeding the cross-sectional area of the largest connector. [NFPA 54:13.2.8]

93

511.2.8 Tee and Wye Fittings. Tee and wye fittings connected to a common gas vent shall be considered as part of the common gas vent and constructed of materials consistent with that of the common gas vent. [NFPA 54-09:13.2.9]

511.2.9 At the point where tee or wye fittings connect to a common vent, the opening size of the fitting shall be equal to the size of the common vent. Such fittings shall not be prohibited from having reduced size openings at the point of connection of appliance vent connectors. [NFPA 54:13.2.10]

511.2.10 Sea level input ratings shall be used when determining maximum capacity for high-altitude installation. Actual input (derated for altitude) shall be used for determining minimum capacity for high-altitude installation. [NFPA 54:13.2.11]

511.2.11 The connector rise (R) for each appliance connector shall be measured from the draft hood outlet or flue collar to the centerline where the vent gas streams come together. [NFPA 54:13.2.12]

511.2.12 For multiple units of gas utilization appliances located on one (1) floor, available total height (H) shall be measured from the highest draft hood outlet or flue collar up to the level of the outlet of the common vent. [NFPA 54:13.2.13]

511.2.13 For multistory installations, available total height (H) for each segment of the system shall be the vertical distance between the highest draft hood outlet or flue collar entering that segment and the centerline of the next higher interconnection tee (See Part II-Figure G.1(m)). [NFPA 54:13.2.14]

511.2.14 The size of the lowest connector and of the vertical vent leading to the lowest interconnection of a multistory system shall be in accordance with Tables 5-8 or 5-9 for available total height (H) up to the lowest interconnection (See Part II-Figure G.1(n)). [NFPA 54:13.2.15]

511.2.15 Where used in multistory systems, vertical common vents shall be Type B double-wall and shall be installed with a listed vent cap. [NFPA 54:13.2.16]

511.2.16 Offsets in multistory common vent systems shall be limited to a single offset in each system, and systems with an offset shall comply with all of the following [NFPA 54:13.2.17]:

  1. The offset angle shall not exceed 45 degrees from vertical.
  2. The horizontal length of the offset shall not exceed eighteen (18) inches for each inch (180 mm/mm) of common vent diameter of the segment in which the offset is located.
  3. For the segment of the common vertical vent containing the offset, the common vent capacity listed in the common venting tables shall be reduced by 20 percent (0.80 x maximum common vent capacity).
  4. A multistory common vent shall not be reduced in size above the offset.

511.2.17 Where two (2) or more appliances are connected to a vertical vent or chimney, the flow area of the largest section of vertical vent or chimney shall not exceed seven (7) times the smallest listed appliance categorized vent areas, flue collar area, or draft hood outlet area unless designed in accordance with approved engineering methods. [NFPA 54:13.2.18]

511.2.18 For appliances with more than one (1) input rate, the minimum vent connector capacity (FAN Min) determined from the tables shall be less than the lowest appliance input rating, and the maximum vent connector capacity (FAN Max or NAT Max) determined from the table shall exceed the highest appliance input rating. [NFPA 54:13.2.19]

511.2.19 Listed corrugated metallic chimney liner systems in masonry chimneys shall be sized by using Tables 5-14 or 5-15 for Type B vents, with the maximum capacity reduced by 20 percent (0.80 maximum capacity) and the minimum capacity as shown in Tables 5-14 or 5-15. Corrugated metallic liner systems installed with bends or offsets shall have their maximum capacity further reduced in accordance with Sections 511.2.5 and 511.2.6. The 20 percent reduction for corrugated metallic chimney liner systems includes an allowance for one (1) long radius 90 degree turn at the bottom of the liner. [NFPA 54:13.2.20]

511.2.20 Tables 5-14 and 5-15 shall be used for chimneys and vents not exposed to the outdoors below the roof line. A Type B vent passing through an unventilated enclosure or chase insulated to a value of not less than R8 shall not be considered to be exposed to the outdoors. Tables 5-19 and 5-20 shall be used for clay-tile-lined exterior masonry chimneys, provided all of the following conditions are met [NFPA 54:13.2.22]:

  1. Vent connector is Type B double-wall.
  2. One (1) appliance is draft-hood-equipped.
  3. The combined appliance input rating is less than the maximum capacity given by Table 5-19 (for NAT + NAT) or Table 5-21 (for FAN + NAT).
  4. The input rating of each space-heating appliance exceeds the minimum input rating given by Table 5-20 (for NAT + NAT) or Table 5-22 (for FAN + NAT).
  5. The vent connector sizing is in accordance with Table 5-16.

511.2.21 Vent connectors shall not be increased more than two (2) sizes exceeding the listed appliance categorized vent diameter, flue collar diameter, or draft hood outlet diameter. Vent connectors for draft-hood-equipped appliances shall not be smaller than the draft hood outlet diameter. Where vent connector sizes determined from the tables for fan-assisted appliances are smaller than the flue collar diameter, the use of the smaller sizes shall be permitted provided that the installation complies with all of the following conditions [NFPA 54:13.2.24]:

  1. Vent connectors for fan-assisted appliance flue collars twelve (12) inches (300 mm) in diameter or 94smaller are not reduced by more than one (1) table size [e.g., twelve (12) inches to ten (10) inches (300 mm to 250 mm) is a one (1) size reduction] and those exceeding twelve (12) inches (300 mm) in diameter are not reduced exceeding two (2) table sizes [e.g., twenty-four (24) inch to twenty (20) inch (610 mm to 510 mm) is a two (2) size reduction].
  2. Fan-assisted appliances are common vented with a draft-hood-equipped appliance.
  3. The vent connector has a smooth interior wall.

511.2.22 Combinations of pipe sizes, single-wall, and double-wall metal pipe shall be allowed within any connector run or within the common vent, provided ALL of the appropriate tables permit ALL of the desired sizes and types of pipe, as if they were used for the entire length of the subject connector or vent. Where single-wall and Type B double-wall metal pipes are used for vent connectors within the same venting system, the common vent must be sized using Tables 5-15 or 5-17 as appropriate. [NFPA 54:13.2.25]

511.2.23 Where a table permits more than one (1) diameter of pipe to be used for a connector or vent, all the permitted sizes shall be permitted to be used. [NFPA 54:13.2.26]

511.2.24 Interpolation shall be permitted in calculating capacities for vent dimensions that fall between table entries (See Part II Annex G.1.3). [NFPA 54:13.2.27]

511.2.25 Extrapolation beyond the table entries shall not be permitted. [NFPA 54:13.2.28]

511.2.26 For vent heights lower than six (6) feet and exceeding vent heights shown in the tables, engineering methods shall be used to calculate vent capacities. [NFPA 54:13.2.29]

512.0 Direct-Vent Appliances.

Listed direct-vent gas utilization appliances shall be considered properly vented where installed in accordance with the terms of its listing, the manufacturer’s instructions, and Section 510.8.3. [NFPA 54:12.3.5]

FIGURE 5-7 ALL COMBUSTION AIR FROM ADJACENT INDOOR SPACES THROUGH INDOOR COMBUSTION AIR OPENINGS. [NFPA 54: FIGURE A.9.3.2.3(1)]

FIGURE 5-7 ALL COMBUSTION AIR FROM ADJACENT INDOOR SPACES THROUGH INDOOR COMBUSTION AIR OPENINGS. [NFPA 54: FIGURE A.9.3.2.3(1)]

95

FIGURE 5-8 ALL COMBUSTION AIR FROM OUTDOORS. INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC. [NFPA 54: FIGURE A.9.3.3.1(a)]

FIGURE 5-8 ALL COMBUSTION AIR FROM OUTDOORS. INLET AIR FROM VENTILATED CRAWL SPACE AND OUTLET AIR TO VENTILATED ATTIC. [NFPA 54: FIGURE A.9.3.3.1(a)]

FIGURE 5-9 ALL COMBUSTION AIR FROM OUTDOORS THROUGH VENTILATED ATTIC. [NFPA 54: FIGURE A.9.3.3.1(1)(b)]

FIGURE 5-9 ALL COMBUSTION AIR FROM OUTDOORS THROUGH VENTILATED ATTIC. [NFPA 54: FIGURE A.9.3.3.1(1)(b)]

FIGURE 5-10 ALL COMBUSTION AIR FROM OUTDOORS THROUGH HORIZONTAL DUCTS. [NFPA 54: FIGURE A.9.3.3.1(2)]

FIGURE 5-10 ALL COMBUSTION AIR FROM OUTDOORS THROUGH HORIZONTAL DUCTS. [NFPA 54: FIGURE A.9.3.3.1(2)]

FIGURE 5-11 ALL COMBUSTION AIR FROM OUTDOORS THROUGH SINGLE COMBUSTION AIR OPENING. [NFPA 54: FIGURE A.9.3.3.2]

FIGURE 5-11 ALL COMBUSTION AIR FROM OUTDOORS THROUGH SINGLE COMBUSTION AIR OPENING. [NFPA 54: FIGURE A.9.3.3.2]

96

FIGURE 5-12 EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS. [NFPA 54: FIGURE A.12.9]

FIGURE 5-12 EXIT TERMINALS OF MECHANICAL DRAFT AND DIRECT-VENT VENTING SYSTEMS. [NFPA 54: FIGURE A.12.9]

FIGURE 5-13 RANGE OF WINTER DESIGN TEMPERATURES USED IN ANALYZING EXTERIOR MASONRY CHIMNEYS IN THE UNITED STATES. [NFPA 54: FIGURE G.2.4]

FIGURE 5-13 RANGE OF WINTER DESIGN TEMPERATURES USED IN ANALYZING EXTERIOR MASONRY CHIMNEYS IN THE UNITED STATES. [NFPA 54: FIGURE G.2.4]

97

TABLE 5-8
TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)]
 NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:CONNECTED DIRECTLY TO VENT
 VENT DIAMETER –D (inch)
34567
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.2 = 645 mm2.
6007846015286025114103752050524285
2135136189767271571053223215744321217
4214934309464391531035022715366316211
6254632369161471491005922314978310205
8008450016594027615504152350583320
21257401610975251781202826318042365247
52353383210371421711155325517370356237
8284935399866511641096424716584347227
100088530175100029516604472550631345
21261421711881231941292628919540402273
52357403211377411871245228018868392263
103051364110470541761156726717588376245
150094580191112032718705022850716390
21169481513693202261502233922538475316
52265453013087392191424933021764463300
102959414012182512061356431520884445288
153553374811276611951287630119898429275
200097610202119034920205403070776430
210755114149100182501662037724933531346
52171482914396382421604736724162519337
102864443813389502291506235122881499321
153458404612484592171427333721794481308
2048523555116786920613484322206107464295
3000100640213128037422005873360853475
29815613166112142831851843228027613394
521775428160108362751764542127358600385
1027705037150102482621715940526177580371
153364NA4414196572491637038924990560357
205658NA53132906623715480374237102542343
30NANANA73113NA88214NA104346219131507321
5000101670216134039723206333630932518
28866111183122143202061549731422715445
52082NA27177119353122004348730855702438
102676NA35168114452991905647129873681426
155970NA42158NA542871806645528885662413
20NANANA50149NA632751697644027897642401
30NANANA69131NA84250NA99410259123605376
1000NANANA0218NA0407NA06654000997560
2NANANA10194NA12354NA1356637518831510
5NANANA26189NA33347NA4055736952820504
10NANANA33182NA43335NA5354236168801493
15NANANA40174NA50321NA6252835380782482
20NANANA47166NA59311NA7151334490763471
30NANANANANANA78290NA92483NA115726449
50NANANANANANANANANA147428NA180651405

98

TABLE 5-8
TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)]
  NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:CONNECTED DIRECTLY TO VENT
VENT DIAMETER –D (inch)
89101214
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in.= 25.4 mm, 1 ft.= 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.2 = 645 mm2.
600698370089747001,12157001,64585002,2671,170
25342528563543370756754551039826501381,346890
479419279935363621106684451479756401911,338880
6934132731105303541286614351719676302191,330870
80078041501,00653701,26166001,85897002,5711,320
2504833226061941871770515981,1247451301,5431,020
583473313996074071157585031541,1107331991,5281,010
8994633031175963961377464901801,0977202311,5141,000
100084745001,09658501,37772002,0361,06002,8251,450
2485333555768445768852560931,2448501241,7131,130
581522346956714461128395471491,2298291921,6961,105
101045043301226514271428175251871,2047952381,6691,080
150097052501,26368201,59684002,3801,24003,3231,720
24563341453815544631,019675861,4959851142,0621,350
576620403908005291051,0036601401,4769671822,0411,327
10996003861167775071359776351771,4469362272,0091,289
151155803731347554911559536102021,4189052571,9761,250
20001,05757501,38475201,75693002,6371,35003,7011,900
24171147050917612591,150755811,6941,1001072,3431,520
573697460869025991011,1337381351,6741,0791742,3201,498
10956754431128775761301,1057101721,6411,0452202,2821,460
151116544271298535571501,0786881951,6091,0182482,2451,425
201256344101458305371671,0526652171,5789902732,2101,390
30001,17365001,54885501,9771,06003,0041,55004,2522,170
233826535421,072700541,351865742,0041,310982,7861,800
569811524821,055688961,3328511271,9811,2891642,7591,775
10917885071071,0286681251,3018291641,9441,2542092,7161,733
151057654901241,0026481431,2728071871,9081,2202372,6741,692
201197434731399776281601,2437842071,8731,1852602,6331,650
301497024441719295941951,1897452461,8071,1303052,5551,585
50001,29770801,73095202,2311,19503,4411,82504,9342,550
226975615331,276813411,6201,010662,4311,513863,4092,125
565960605771,259798901,6009961182,4061,4951513,3802,102
10869355891011,2307731181,5679721542,3661,4661963,3322,064
151009115721171,2037471361,5369481772,3271,4372223,2852,206
201138885561311,1767221511,5059241952,2881,4082443,2391,987
301418445221611,1256701831,4468762322,2141,3492873,1501,910
100001,41177001,9081,04002,4911,31003,9252,05005,7292,950
2211,155700251,536935301,9751,170443,0271,820724,3132,550
5601,141692711,519926821,9551,1591073,0021,8031364,2822,531
10801,118679941,4929101081,9231,1421422,9611,7751804,2312,500
15931,0956661091,4658951261,8921,1241632,9201,7472064,1822,469
201051,0736531221,4388801411,8611,1071812,8801,7192264,1332,438
301311,0296271491,3878491701,8021,0712152,8031,6632654,0372,375
501979445752171,2887872411,6881,0002922,6571,5503503,8562,250

99

TABLE 5-8
TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(a)] (continued)
  NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:CONNECTED DIRECTLY TO VENT
VENT DIAMETER –D (inch)
1618202224
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in.= 25.4 mm, 1 ft.= 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.2 = 645 mm2.
6002,9831,53003,8021,96004,7212,43005,7372,95006,8533,520
21781,7691,1702252,2501,4802962,7821,8503603,3772,2205554,0302,670
42421,7611,1603002,2421,4753902,7741,8354693,3702,2155554,0232,660
62761,7531,1503412,2351,4704372,7671,8205233,3632,2106184,0172,650
8003,3991,74004,3332,22005,3872,75006,5553,36007,8384,010
21682,0301,3402122,5841,7002783,1962,1103363,8822,5604014,6343,050
52512,0131,3303112,5631,6853983,1802,0904763,8632,5455624,6123,040
82892,0001,3203542,5521,6704503,1632,0705373,8502,5306304,6023,030
10003,7421,92504,7822,45005,9553,05007,2543,71008,6824,450
21612,2561,4802022,8681,8902643,5562,3403194,3222,8403785,1533,390
52432,2381,4613002,8491,8713823,5362,3184584,3012,8185405,1323,371
102982,2091,4303642,8181,8404593,5042,2805464,2682,7806415,0993,340
15004,4232,27005,6782,90007,0993,62008,6654,410010,3935,300
21472,7191,7701863,4672,2602394,3042,8002905,2323,4103466,2514,080
52292,6961,7482833,4422,2603554,2782,7774265,2043,3855016,2224,057
102832,6591,7123463,4022,1934324,2342,7395105,1593,3435996,1754,019
153182,6231,6753853,3632,1504794,1922,7005645,1153,3006656,1293,980
20004,9482,52006,3763,25007,9884,06009,7854,980011,7536,000
21393,0972,0001753,9552,5702204,9163,2002695,9833,9103217,1544,700
52193,0971,9782703,9262,5443374,8853,1744035,9503,8804757,1194,662
102733,0291,9403343,8802,5004134,7863,1304895,8963,8305377,0634,600
153062,9881,9103723,8352,4654594,7863,0905415,8443,7956317,0074,575
203352,9881,8804043,7912,4304954,7373,0505855,7923,7606896,9534,550
30005,7252,92007,4203,77009,3414,750011,4835,850013,8487,060
21273,6962,3801594,7343,0501995,9003,8102417,1944,6502858,6175,600
52063,6662,3502524,7013,0203125,8633,7833737,1554,6224398,5745,552
102593,6172,3003164,6472,9703865,8033,7394567,0904,5745358,5055,471
152923,5702,2503544,5942,9204315,7443,6955077,0264,5275908,4375,391
203193,5232,2003844,5422,8704675,6863,6505486,9644,4806398,3705,310
303693,4332,1304404,4422,7855405,5743,5656356,8424,3757398,2395,225
50006,7113,44008,7744,460011,1295,635013,7676,940016,6948,430
21134,5542,8401415,8643,6701717,3394,6302098,9805,69525110,7886,860
51914,5202,8132345,8263,6392837,2954,5973368,9335,65439410,7376,818
102434,4642,7672955,7633,5853557,2244,5424198,8555,58549110,6526,749
152744,4092,7213305,7013,5343967,1554,5114658,7795,54654210,5706,710
203004,3562,6753615,6413,4814337,0864,4795068,7045,50658610,4886,670
303474,2532,6314125,5233,4314946,9534,4215778,5575,44467210,3286,603
100007,9144,050010,4855,300013,4546,700016,8178,600020,57810,300
2955,8343,5001207,5914,6001389,5775,80016911,8037,20020414,2648,800
51725,7973,4752087,5484,5662459,5285,76929311,7487,16234114,2048,756
102235,7373,4342687,4784,5093189,4475,71737411,6587,10043614,1058,683
152525,6783,3923047,4094,4513589,3675,66541811,5697,03748714,0078,610
202775,5053,3513307,3414,3943879,2895,61345211,4826,97552313,9108,537
303195,5053,2673787,2094,2794469,1365,50951411,3106,85059213,7208,391
504155,2893,1004866,9564,0505728,8415,30065910,9796,60075213,3548,100

100

TABLE 5-9
TYPE B DOUBLE-WALL GAS VENT [NFPA 54: TABLE 13.1(b)]
  NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
VENT DIAMETER –D (inch)
34567
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in.=25.4 mm, 1 ft. = 0.305 m, 1,000 Btu⁄hr=0.293 kW, 1 in.2 = 645 mm2.
60387745591518585249140126373204165522284
239513660966685156104123231156159320213
4NANA33749263102152102146225152187313208
6NANA3183896011414799163220148207307203
80378350581649383273154123412234161580319
2395639591087583176119121261179155363246
5NANA377710269107168114151252171193352235
8NANA33909564122161107175243163223342225
100378753571749982293165120444254158628344
2396141591178082193128119287194153400272
55256397611176105185122148277186190388261
10NANA349710068132171112188261171237369241
1503693575619011180325186116499283153713388
2386947571369380225149115337224148473314
55163447512886102216140144326217182459298
10NANA399511679128201131182308203228438284
15NANANANANA72158186124220290192272418269
2003596605420011878346201114537306149772428
2377450561489978248165113375248144528344
55068477314094100239158141363239178514334
10NANA419312986125223146177344224222491316
15NANANANANA80155208136216325210264469301
20NANANANANANA186192126254306196309448285
3003499635321112776372219110584334144849472
23780565516411176281183109429279139610392
54974527215710698271173136417271171595382
10NANANA9114498122255168171397257213570367
15NANANA115131NA151239157208377242255547349
20NANANANANANA181223NA246357228298524333
30NANANANANANANANANANANANA389477305
5003399665121313373394230105629361138928515
23684615318112173318205104495312133712443
54880NA7017411794308198131482305164696435
10NANANA89160NA118292186162461292203671420
15NANANA112148NA145275174199441280244646405
20NANANANANANA176257NA236420267285622389
30NANANANANANANANANA315376NA373573NA
1000NANANA49214NA69403NA100659395131991555
2NANANA51192NA70351NA98563373125828508
5NANANA67186NA90342NA125551366156813501
10NANANA85175NA113324NA153532354191789486
15NANANA132162NA138310NA188511343230764473
20NANANANANANA168295NA224487NA270739458
30NANANANANANA231264NA301448NA355685NA
50NANANANANANANANANANANANA540584NA

101

TABLE 5-9
TYPE B DOUBLE-WALL GAS VENT [NFPA 54: Table 13.1(b)] (continued)
 NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
VENT DIAMETER –D (inch)
891012
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in. =25.4 mm, 1 ft.=0.305m, 1,000 Btu/hr=0.293 kW, 1 in.2=645 mm2.
602116953692678944693711,1185695371,639849
2201423284251541368347673453498979648
4237416277295533360409664443584971638
6263409271327526352449656433638962627
802067774142581,0025363601,2576585211,852967
21974823212466174173397685134861,120743
52454703113056044044187545005981,104730
82804583003445913924707404866651,089715
1002028444492531,0935843511,3737185072,0311,057
21935313542426814563328495594751,242848
52415183442996674434098345445841,224825
102964973253636434234928085206881,194788
1501959665232441,2596813361,5918384882,3741,237
21876314132328125433191,0156734571,491983
52316164002877955263929976575621,469963
102845923813497685014709666286641,433928
153345683674047424845409376017501,399894
2001901,0535732381,3797503261,7519274732,6311,346
21827084682279146113091,1467544431,6891,098
52246924572798965963811,1267345471,6651,074
102776664373398665704571,0927026461,6261,037
153256404193938385495261,0606777301,5871,005
203746164004488105265921,0286518081,550973
3001841,1686472291,5428523121,9711,0564542,9961,545
21758235332191,0696982961,3468634241,9991,308
52158065212691,0496843661,3248465241,9711,283
102657775013271,0176624401,2878216201,9271,243
153127504813799856385071,2517947021,8841,205
203607234614339556155701,2167687801,8411,166
304616704265418955747041,1477209371,7591,101
5001761,2927042201,7249482952,2231,1894283,4321,818
21689716132091,2738112801,6151,0074012,4261,509
52049536022571,2527953471,5919914962,3961,490
102539235833131,2177654181,5519635892,3471,455
152998945623631,1837364811,5129346682,2991,421
203458665434151,1507085441,4739067412,2511,387
304428095025211,0866496741,3998488922,1591,318
10001661,4047652071,9001,0332732,4791,3003953,9122,042
21581,1526981961,5329332591,9701,1683713,0211,817
51941,1346882401,5119213221,9451,1534602,9901,796
102381,1046722931,4779023891,9051,1335472,9381,763
152811,0756563421,4438844471,8651,1106182,8881,730
203251,0466393911,4108645071,8251,0876902,8381,696
30418988NA4911,3438246311,7471,0418342,7391,627
50617866NA7111,205NA8951,591NA1,1382,5471,489

102

TABLE 5-10
MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(c)]
  NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
TYPE B DOUBLE-WALL CONNECTOR DIAMETER –D (inch) TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM
34567
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in.=25.4 mm, 1 ft. =0.305 m, 1,000 Btu/hr–0.293 kW, 1 in.2–645 mm2.
62NANA28NANA52NANA86NANA130NANA180
5NANA25NANA49NANA82NANA117NANA165
82NANA29NANA55NANA93NANA145NANA198
5NANA26NANA52NANA88NANA134NANA183
8NANA24NANA48NANA83NANA127NANA175
102NANA31NANA61NANA103NANA162NANA221
5NANA28NANA57NANA96NANA148NANA204
10NANA25NANA50NANA87NANA159NANA191
152NANA35NANA67NANA114NANA17953475250
5NANA35NANA62NANA107NANA164NANA231
10NANA28NANA55NANA97NANA153NANA216
15NANANANANA48NANA89NANA141NANA201
202NANA38NANA74NANA124NANA20151522274
5NANA36NANA68NANA116NANA18480503254
10NANANANANA60NANA107NANA172NANA237
15NANANANANANANANA97NANA159NANA220
20NANANANANANANANA83NANA148NANA206
302NANA41NANA82NANA137NANA21647581303
5NANANANANA76NANA128NANA19875561281
10NANANANANA67NANA115NANA184NANA263
15NANANANANANANANA107NANA171NANA243
20NANANANANANANANA91NANA159NANA227
30NANANANANANANANANANANANANANA188
502NANANANANA92NANA161NANA251NANA351
5NANANANANANANANA151NANA230NANA323
10NANANANANANANANA138NANA215NANA304
15NANANANANANANANA127NANA199NANA282
20NANANANANANANANANANANA185NANA264
30NANANANANANANANANANANANANANANA
Minimum internal area of chimney (in.2)12 19 28 38 50 
Maximum internal area of chimney (in.2)Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas.

103

TABLE 5-10
MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1 (c)] (continued)
 NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
TYPE B DOUBLE-WALL CONNECTOR DIAMETER –D (inch) TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM
891012
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in. =25. 4 mm, 1 ft. =0.305 m, 1,000 Btu/hr=0.293 kW, 1 in. 2=645 mm2.
62NANA247NANA320NANA401NANA581
5NANA231NANA298NANA376NANA561
82NANA266845903501007284461391,024651
5NANA247NANA3281497114232011,007640
8NANA239NANA318173695410231990623
1026851929882655388988104911361,144724
5NANA2771246383651467914661961,124712
10NANA2631556103471827624442401,093668
1526461333677779441929685621271,376841
5995943131187594161399465331861,352828
101265652961487273941739125672291,315777
15NANA2811716983751988804852591,280742
2026167837573867491871,0836271211,548953
5956583501138454631331,0595971791,523933
101226273321438114401671,0225662211,482879
15NANA3141657804181919875412511,443840
20NANA2961867503972149555132771,406807
3025776242168985558811,2407171111,7931,112
5907413931069625261251,2166831691,7661,094
101157093731359275001581,1766482101,7211,025
15NANA3531568934761811,1396212391,679981
20NANA3321768604502031,1035922641,638940
30NANA288NANA4162491,0355553181,560877
50251840477611,106633721,413812992,0801,243
583819445981,0835961161,3877741552,0521,225
10NANA4241261,0475671471,3477331952,0061,147
15NANA4001461,0105391701,3077022221,9611,099
20NANA3761659775111901,2696692461,9161,050
30NANA327NANA4682331,1966232951,832984
Minimum internal area of chimney (in.2)63 78 95 132 
Maximum internal area of chimney (in.2)Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas.

104

TABLE 5-11
MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(d)]
  NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
SINGLE-WALL METAL CONNECTOR DIAMETER – D (inch) TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM
34567
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in. =25.4 mm, 1 ft.=0.305 m, 1,000 Btu⁄hr=0.293 kW, 1 in.2=645 mm2.
62NANA28NANA52NANA86NANA130NANA180
5NANA25NANA48NANA81NANA116NANA164
82NANA29NANA55NANA93NANA145NANA197
5NANA26NANA51NANA87NANA133NANA182
8NANA23NANA47NANA82NANA126NANA174
102NANA31NANA61NANA102NANA161NANA220
5NANA28NANA56NANA95NANA147NANA203
10NANA24NANA49NANA86NANA137NANA189
152NANA35NANA67NANA113NANA178166473249
5NANA32NANA61NANA106NANA163NANA230
10NANA27NANA54NANA96NANA151NANA214
15NANANANANA46NANA87NANA138NANA198
202NANA38NANA73NANA123NANA200163520273
5NANA35NANA67NANA115NANA183NANA252
10NANANANANA59NANA105NANA170NANA235
15NANANANANANANANA95NANA156NANA217
20NANANANANANANANA80NANA144NANA202
302NANA41NANA81NANA136NANA215158578302
5NANANANANA75NANA127NANA196NANA279
10NANANANANA66NANA113NANA182NANA260
15NANANANANANANANA105NANA168NANA240
20NANANANANANANANA88NANA155NANA223
30NANANANANANANANANANANANANANA182
502NANANANANA91NANA160NANA250NANA350
5NANANANANANANANA149NANA228NANA321
10NANANANANANANANA136NANA212NANA301
15NANANANANANANANA124NANA195NANA278
20NANANANANANANANANANANA180NANA258
30NANANANANANANANANANANANANANANA
Minimum internal area of chimney (in.2)12 19 28 38 50 
Maximum internal area of chimney (in.2)Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas.

105

TABLE 5-11
MASONRY CHIMNEY [NFPA 54-09: TABLE 13.1(d) (continued)
 NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:CATEGORY 1
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
SINGLE-WALL METAL CONNECTOR DIAMETER-D(inch) TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM
891012
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
HEIGHT H (ft)LATERAL L (ft)FANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
For SI units, 1 in.= 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr = 0.293 kW, 1 in.2=645 mm2.
62NANA247NANA319NANA400NANA580
5NANA230NANA297NANA375NANA560
82NANA265NANA3493827254455491,021650
5NANA246NANA327NANA4226731,003638
8NANA237NANA317NANA408747985621
1022165182972716543873738084905361,142722
5NANA2763346353644597894656571,121710
10NANA261NANA3455477584417711,088665
1522116113352647764403629655605201,373840
52615913123257554144449425316371,348825
10NANA2943927223925319075047491,309774
15NANA2784526923726068734818411,272738
2022066753742588644902521,0796255081,544950
52556553483178424614331,0555946231,518930
103126223303828064375171,0165627331,475875
15NANA3114427734145919795398231,434835
20NANA292NANA3926639445109111,394800
3022007594202499825563401,2377154891,7891,110
52457373913069585244171,2106806001,7601,090
103007033703709204965001,1686447081,7131,020
15NANA3494288844715721,1286157981,668975
20NANA327NANA4456431,0895858831,624932
30NANA281NANA408NANA5441,0551,539865
5021918374752381,1036313231,4088104632,0761,240
5NANA4422931,0785933981,3817705712,0441,220
10NANA4203551,0385624471,3377286741,9941,140
15NANA395NANA5335461,2946957611,9451,090
20NANA370NANA5046161,2516608441,8981,040
30NANA318NANA458NANA6101,0091,805970
Minimum internal area of chimney (in.2)63 78 95 132 
Maximum internal area of chimney (in.2)Seven times the listed appliance categorized vent area, flue collar area, or draft hood outlet areas.

106

TABLE 5-12
SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT [NFPA 54: TABLE 13.1(e)]
 NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:DRAFT HOOD-EQUIPPED
APPLIANCE VENT CONNECTION:CONNECTED DIRECTLY TO PIPE OR VENT
HEIGHT H (ft)LATERAL L (ft)DIAMETER-D(inch) TO BE USED WITH CHIMNEY AREAS WITHIN THE SIZE LIMITS AT BOTTOM
3456781012
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
MAXIMUM APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
For SI units, 1 in. = 25.4 mm, 1 ft. = 0.305 m, 1,000 Btu/hr=0.293 kW, 1 in.2=645 mm2.
603970116170232312500750
2315594141194260415620
5285188128177242390600
804276126185252340542815
23261102154210284451680
5295695141194264430648
10244986131180250406625
1004584138202279372606912
23567111168233311505760
53261104153215289480724
10275494143200274455700
15NA4684130186258432666
15049911512233124206841,040
23972122186260350570865
53567110170240325540825
103058103158223308514795
15NA5093144207291488760
20NANA82132195273466726
200531011632523424707701,190
24280136210286392641990
53874123192264364610945
103265115178246345571910
15NA55104163228326550870
20NANA91149214306525832
300561081832763845298781,370
244841482303204417301,140
5NA781372102964106941,080
10NA681251962743886561,050
15NANA1131772583666251,000
20NANA99163240344596960
30NANANANA192295540890
500NA1202103104435909801,550
2NA951712603704928201,290
5NANA1592343424747801,230
10NANA1462213184567301,190
15NANANA2002924077051,130
20NANANA1852763846701,080
30NANANANA2223306051,010

107

TABLE 5-13
EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.1(f)]
 NUMBER OF APPLIANCES:SINGLE
APPLIANCE TYPE:NAT
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
INTENDED USE: MINIMUM ALLOWABLE INPUT RATING OF SPACE-HEATING APPLIANCE IN THOUSANDS OF BTU PER HOUR
VENT HEIGHT H (ft)INTERNAL AREA OF CHIMNEY (inch2)
12192838506378113
For SI units, 1 in. = 25.4 mm, 1 in.2=645 mm,2 1 ft.=0.305 m, 1,000 But per hr = 0.293 kW,°C=(°F–32)/1.8.
Note: See Figure 5-13 for a map showing local 99 percent winter design temperatures in the United States.
 Local 99% winter design temperature: 37°F or greater
600000000
800000000
1000000000
15NA0000000
20NANA12319024918400
30NANANANANA3933340
50NANANANANANANA579
 Local 99% winter design temperature: 27°F to 36°F
60068116156180212266
80082127167187214263
1005197141183201225265
15NANANANA233253274305
20NANANANANA307330362
30NANANANANA419445485
50NANANANANANANA763
 Local 99% winter design temperature: 17°F to 26°F
6NANANANANA215259349
8NANANANA197226264352
10NANANANA214245278358
15NANANANANA296331398
20NANANANANA352387457
30NANANANANANA507581
50NANANANANANANANA
 Local 99° winter design temperature: 5°F to 16°F
6NANANANANANANA416
8NANANANANANA312423
10NANANANANA289331430
15NANANANANANA393485
20NANANANANANA450547
30NANANANANANANA682
50NANANANANANANA972
 Local 99% winter design temperature: -10°F to 4°F
6NANANANANANANA484
8NANANANANANANA494
10NANANANANANANA513
15NANANANANANANA586
20NANANANANANANA650
30NANANANANANANA805
50NANANANANANANA1,003
 Local 99% winter design temperature:-11°F or lower Not recommended for any vent configurations

108

TABLE 5-14
TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER – D (inch)
34567
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
6122372635664646106725816410477225142
223413137755548121866018312479253168
324443538816249132966219913982275189
8122402735724849114766417610984243148
223443236805751128906619512986269175
3244736378764531391016721014588290198
10122432834785049123786518911389257154
223473336865951136936720613491282182
3245037379267521461046922015094303205
15121503033895347142836422012088298163
222533535966349153996623514291320193
32455403610271511631116824816093339218
20121543133995646157876224612586334171
22257373410566481671046425914989354202
32360423511074501761166627116891371228
301206233311135945181936028813483391182
22164393311870471901106229915885408215
32266443412379481981246430917888423242
5011971363013364432161015734914578477197
22173433213776452231195935817281490234
32275483314186462291346136619483502263
10011882372815866402621045344215073611204
21983443016179422671235544717875619242
32084503116389442721385745220078627272
COMMON VENT CAPACITY
VENT HEIGHT H (ft)TYPE B DOUBLE-WALL COMMON VENT DIAMETER – D (inch)
4567
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2=645 mm2, 1 ft =0.305 m, 1000 Btu per hr-0.293 kW.
6928165140116103204161147309248200
81019073155129114224178163339275223
101109779169141124243194178367299242
1512511291195164144283228206427352280
20136123102215183160314255229475394310
30152138118244210185361297266547459360
50167153134279244214421353310641547423
100175163NA311277NA489421NA751658479

109

TABLE 5-14
TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued)
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE WALL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER – D (inch)
8910
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMax
6192296185109376237128466289
295333220112424282131526345
397363248114463317134575386
81100320194118408248138507303
2103356230121454294141564358
3105384258123492330143612402
101106341200125436257146542314
2109374238128479305149596372
3111402268131515342152642417
151110389214134493273162609333
2112419253137532323165658394
3115445286140565365167700444
201107436224131552285158681347
2110463265134587339161725414
3113486300137618383164764466
301103512238125649305151802372
2105535282129679360155840439
3108555317132706405158874494
50197627257120797330144984403
21006453061238203921481,014478
31036613431268424411511,043538
1001918102661121,0383411351,285417
2948223161151,0544051391,306494
3978343551181,0694551421,327555
COMMON VENT CAPACITY
VENT HEIGHT H (ft)TYPE B DOUBLE-WALL COMMON VENT DIAMETER – D (inch)
8910
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NAT
For SI units, 1 in.=25.4 mm, 1 in.2=645 mm2, 1 ft.=0.305 m, 1000 Btu per hr=0.293 kW.
6404314260547434335672520410
8444348290602480378740577465
10477377315649522405800627495
15556444365753612465924733565
206214994058426885231,035826640
307205854709798086051,209975740
508547065501,1649777051,4511,188860
1001,0258736251,4081,2158001,7841,502975

110

TABLE 5-14
TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued)
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER – D inch)
12141618
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
621747644962231,0466532811,3718533461,7721,080
41808976162301,2318272871,6171,0813522,0691,370
6NANANANANANANANANANANANA
821868225162381,1266962981,4789103651,9201,150
41929526442441,3078843051,7191,1503722,2111,460
61981,0507722521,4451,0723131,9021,3903802,4341,770
1021968705362491,1957303111,5709553792,0491,205
42019976642561,3719243181,8041,2053872,3321,535
62071,0957922631,5091,1183251,9891,4553952,5561,865
1522149675682721,3347903361,7601,0304082,3171,305
42211,0857122791,4991,0063441,9781,3204162,5791,665
62281,1818562861,6321,2223512,1571,6104242,7962,025
2022231,0515962911,4438403571,9111,0954302,5331,385
42301,1627482981,5971,0643652,1161,3954382,7781,765
62371,2539003071,7261,2883732,2871,6954502,9842,145
3022161,2176322861,6649103672,1831,1904612,8911,540
42231,3167922941,8021,1603762,3661,5104743,1101,920
62311,4009523031,9201,4103842,5241,8304853,2992,340
5022061,4796892732,0231,0073502,6591,3154353,5481,665
42131,5618602812,1391,2913592,8141,6854473,7302,135
62211,6311,0312902,2421,5753692,9512,0554613,8932,605
10021921,9237122542,6441,0503263,4901,3704024,7071,740
42001,9848882632,7311,3463363,6061,7604144,8422,220
62082,0351,0642722,8111,6423463,7142,1504264,9682,700
COMMON VENT CAPACITY
VENT HEIGHT H (ft)TYPE B DOUBLE-WALL COMMON VENT DIAMETER – D (inch)
12141618
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
69006965881,2849908151,7351,3361,0652,2531,7321,345
89947736521,4231,1039121,9271,4911,1902,5071,9361,510
101,0768417121,5421,2009952,0931,6251,3002,7272,1131,645
151,2479868251,7941,4101,1582,4401,9101,5103,1842,4841,910
201,4051,1169162,0061,5881,2902,7222,1471,6903,5612,7982,140
301,6581,3271,0252,3731,8921,5253,2202,5581,9904,1973,3262,520
502,0241,6401,2802,9112,3471,8633,9643,1832,4305,1844,1493,075
1002,5692,1311,6703,7323,0762,4505,1254,2023,2006,7495,5094,050

111

TABLE 5-14
TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(a)] (continued)
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)TYPE B DOUBLE-WALL VENT AND CONNECTOR DIAMETER – D (inch)
202224
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMax
62NANANANANANANANANA
4NANANANANANANANANA
6NANANANANANANANANA
82NANANANANANANANANA
44712,7371,8005603,3192,1806623,9572,590
64783,0182,1805683,6652,6406694,3733,130
102NANANANANANANANANA
44862,8871,8905813,5022,2806864,1752,710
64943,1692,2905893,8492,7606944,5933,270
152NANANANANANANANANA
45233,1972,0606243,8812,4907344,6312,960
65333,4702,5106344,2163,0307435,0353,600
202NANANANANANANANANA
45543,4472,1806614,1902,6307725,0053,130
65673,7082,6506714,5113,1907855,3923,790
302NANANANANANANANANA
46193,8402,3657284,8612,8608475,6063,410
66324,0802,8757414,9763,4808605,9614,150
502NANANANANANANANANA
45804,6012,6337095,5693,1858516,6333,790
65944,8083,2087245,8263,8858676,9434,620
1002NANANANANANANANANA
45235,9822,7506397,2543,3307698,6503,950
65396,1433,3506547,4534,0707868,8924,810
COMMON VENT CAPACITY
VENT HEIGHT H (ft)TYPE B DOUBLE-WALL COMMON VENT DIAMETER – D (inch)
202224
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN +FANFAN +NATNAT +NATFAN +FANFAN +NATNAT +NATFAN +FANFAN +NATNAT +NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
62,8382,1801,6603,4882,6771,9704,2063,2262,390
83,1622,4391,8603,8902,9982,2004,6953,6162,680
103,4442,6652,0304,2413,2782,4005,1233,9572,920
154,0263,1332,3604,9713,8622,7906,0164,6703,400
204,5483,5522,6405,5734,3523,1206,7495,2613,800
305,3034,1933,1106,5395,1573,6807,9406,2474,480
506,5675,2403,8008,1166,4584,5009,8377,8135,475
1008,5976,9865,00010,6818,6485,92013,00410,4997,200

112

TABLE 5-15
TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2(b)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)SINGLE-WALL METAL VENT CONNECTOR DIAMETER – D (inch)
34567
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
61NANA26NANA46NANA71NANA102207223140
2NANA31NANA55NANA85168182123215251167
3NANA34NANA6212113195175198138222273188
81NANA27NANA48NANA75NANA106226240145
2NANA32NANA5712512689184193127234266173
3NANA35NANA64130138100191208144241287197
101NANA28NANA5011912177182186110240253150
2NANA3384855912413491189203132248278183
3NANA36899167129144102197217148257299203
151NANA2979875211613881177214116238291158
2NANA3483946212115097185230138246314189
3NANA398710070127160109193243157255333215
20149563078975411515284175238120233325165
25259368210364120163101182252144243346197
35562408710772125172113190264164252363223
301476031771105711217589169278129226380175
25162378111567117185106177290152236397208
35464428511976122193120185300172244412235
50146693475128601092079616233613721746088
249714079327211415113170345164226473223
35272458313682119221123178353186235486252
1001457934711506110424998153424140205585192
24880417515373110255115160428167212593228
35181467915785114260129168433190222603256
COMMON VENT CAPACITY
VENT HEIGHT H (ft)TYPE B DOUBLE-WALL COMMON VENT DIAMETER – D (inch)
4567
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6NA7864NA11399200158144304244196
8NA8771NA126111218173159331269218
10NA9476163137120237189174357292236
1512110888189159140275221200416343274
2013111898208177156305247223463383302
30145132113236202180350286257533446349
50159145128268233208406337296622529410
100166153NA297263NA469398NA726633464

113

TABLE 5-15
TYPE B DOUBLE-WALL VENT [NFPA 54: TABLE 13.2 (b)] (continued)
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)SINGLE-WALL METAL VENT CONNECTOR DIAMETER – D (inch)
8910
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMax
61262293183325373234447463286
2271331219334422281458524344
3279361247344462316468574385
81285316191352403244481502299
2293353228360450292492560355
3302381256370489328501609400
101302335196372429252506534308
2311369235381473302517589368
3320398265391511339528637413
151312380208397482266556596324
2321411248407522317568646387
3331438281418557360579690437
201306425217390538276546664336
2317453259400574331558709403
3326476294412607375570750457
301296497230378630294528779358
2307521274389662349541819425
3316542309400690394555855482
501284604245364768314507951384
2294623293376793375520983458
33046403313878164235351,013518
10012697742493459933214761,236393
22797882993581,0113834901,259469
32898013393681,0274315061,280527
COMMON VENT CAPACITY
VENT HEIGHT H (ft)TYPE B DOUBLE-WALL COMMON VENT DIAMETER – D (inch)
8910
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NATFAN+FANFAN+NATNAT+NAT
For SI units, 1 in. = 25.4 mm, 1 in2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6398310257541429332665515407
8436342285592473373730569460
10467369309638512398787617487
15544434357738599456905718553
206064873958246735121,013808626
307035704599587905931,183952723
508336865351,1399546891,4181,157838
1009998466061,3781,1857801,7411,459948

114

TABLE 5-16
MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)TYPE B DOUBLE WALL VENT CONNECTOR DIAMETER – D (inch)
34567
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
6124332139624052106676519410187274141
226432841795253133856723012489324173
327493442926155155976926214391369203
8124392239724155117697121310594304148
226472940875357140867324612797350179
327523442976259159987526914599383206
101244222388042551307174232108101324153
2265029409354571538776261129103366184
327553541105635817010078284148106397209
151244823389344541547472277114100384164
22555313910555561748974299134103419192
326593541115645718910276319153105448215
201245224371024653172777131311998437173
22558313911456551909173335138101467199
326633540123655720410475353157104493222
301245425371114852192826935712796504187
2256032381225854208957237614599531209
326643640131665622110774392163101554233
501235125361165151209896740514392582213
22459323712761532251027042116195604235
32664363913569552371157243518098624260
1001234624351085049208926542815588640237
22453313712060512241056744417492660260
32559353813068532371186945819394679285
COMMON VENT CAPACITY
VENT HEIGHT H (ft)MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch2)
1219283850
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FAN
+FAN
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6NA7425NA11946NA17871NA257103NA351143
8NA8028NA13053NA19382NA279119NA384163
10NA8431NA13856NA20790NA299131NA409177
15NANA36NA15267NA233106NA334152523467212
20NANA41NANA75NA250122NA368172565508243
30NANANANANANANA270137NA404198615564278
50NANANANANANANANANANANANANA620328
100NANANANANANANANANANANANANANA348

115

TABLE 5-16
MASONRY CHIMNEY [NFPA 54: TABLE 13.2(c)] (continued)
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)TYPE B DOUBLE-WALL VENT CONNECTOR DIAMETER – D (inch)
8910
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMax
61104370201124479253145599319
2107436232127562300148694378
3109491270129633349151795439
81113414210134539267156682335
2116473240137615311160776394
3119517276139672358163848452
101120444216142582277165739348
2123498247145652321168825407
3126540281147705366171893463
151125511229153658297184824375
2128558260156718339187900432
3131597292159760382190960486
201123584239150752312180943397
21266252701538053541841,011452
31296613011568513961871,067505
3011196802551458833371751,115432
21227152871499283781791,171484
31257463171529684181821,220535
5011157982941401,0493921681,334506
21188273261431,0854331721,379558
31218543571471,1184741761,421611
10011099073341341,2224541611,589596
21139333681381,2534971651,626651
31169563991411,2825401691,661705
COMMON VENT CAPACITY
VENT HEIGHT H (ft)MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch2)
6378113
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FANM
+FAN
FAN
+NAT
FAN
+NAT
FAN
+NAT
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6NA458188NA5822461,041853NA
8NA5012187246362781,144937408
106065382367766863021,2261,010454
156826112838747813651,3741,156546
207426683259558584191,5131,286648
308167473811,0629694961,7021,473749
508798314611,1651,0896061,9051,692922
100NANA499NANA6692,0531,9211,058

116

TABLE 5-17
MASONRY CHIMNEY [NFPA 54: TABLE 13.2(d)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)SINGLE-WALL METAL VENT CONNECTOR DIAMETER – D (inch)
34567
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMaxMinMaxMaxMinMaxMax
61NANA21NANA39NANA66179191100231271140
2NANA28NANA52NANA84186227123239321172
3NANA34NANA6113415397193258142247365202
81NANA21NANA40NANA68195208103250298146
2NANA28NANA5213713985202240125258343177
3NANA34NANA6214315698210264145266376205
101NANA22NANA4113015170202225106267316151
2NANA29NANA5313615086210255128276358181
3NANA34971026214316699217277147284389207
151NANA23NANA4312915173199271112268376161
2NANA30921035413517088207295132277411189
3NANA349611263141185101215315151286439213
201NANA2387994512816776197303117265425169
2NANA30911115513418590205325136274455195
3NANA359611964140199103213343154282481219
301NANA24861084712618780193347124259492183
2NANA31911195713220393201366142269518205
3NANA359512765138216105209381160277540229
501NANA24851135012420487188392139252567208
2NANA318912360130218100196408158262588230
3NANA359413168136231112205422176271607255
1001NANA23841044912220089182410151243617232
2NANA308811559127215102190425169253636254
3NANA349312467133228115199438188262654279
COMMON VENT CAPACITY
VENT HEIGHT H (ft)MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch2)
1219283850
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FANM
+FAN
FAN
+NAT
FAN
+NAT
FAN
+NAT
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
FAN
+FAN
FAN
+NAT
NAT
+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6NANA25NA11845NA17671NA255102NA348142
8NANA28NA12852NA19081NA276118NA380162
10NANA31NA13656NA20589NA295129NA405175
15NANA36NANA66NA230105NA335150NA400210
20NANANANANA74NA247120NA362170NA503240
30NANANANANANANANA135NA398195NA558275
50NANANANANANANANANANANANANA612325
100NANANANANANANANANANANANANANANA

117

TABLE 5-17
MASONRY CHIMNEY [NFPA 54: TABLE 13.2(d)] (continued)
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:CATEGORY I
APPLIANCE VENT CONNECTION:SINGLE-WALL METAL CONNECTOR
VENT CONNECTOR CAPACITY
VENT HEIGHT H (ft)CONNECTOR RISE R (ft)SINGLE-WALL METAL VENT CONNECTOR DIAMETER – D (inch)
8910
APPLIANCE INPUT RATING LIMITS IN THOUSANDS OF BTU PER HOUR
FANNATFANNATFANNAT
MinMaxMaxMinMaxMaxMinMaxMax
61292366200362474252499594316
2301432231373557299509696376
3309491269381634348519793437
81313407207387530263529672331
2323465238397607309540766391
3332509274407663356551838450
101333434213410571273558727343
2343489244420640317569813403
3352530279430694363580880459
151349502225445646291623808366
2359548256456706334634884424
3368586289466755378646945479
201345569235439734306614921387
2355610266450787348627986443
33656442984618313916391,042496
3013386652504308643306001,089421
23486992824429083726131,145473
33587293124529464126261,193524
5013287782874171,0223835821,302492
23398063204291,0584255961,346545
33498313514401,0904666101,386597
10013158753284021,1814445601,537580
23268993614151,2104885751,570634
33379213924271,2385295891,604687
COMMON VENT CAPACITY
VENT HEIGHT H (ft)MINIMUM INTERNAL AREA OF MASONRY CHIMNEY FLUE (inch2)
6378113
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
FANM+FANFAN+NATFAN+NATFAN+NATFAN+NATNAT+NATFAN+FANFAN+NATNAT+NAT
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6NA455187NA579245NA846NA
8NA497217NA6332771,136928405
10NA5322347716803001,2161,000450
156776022808667723601,3591,139540
207656613219478494151,4951,264640
308087393771,0529574901,6821,447740
50NA8214561,1521,0766001,8791,672910
100NANA494NANA6632,0061,8851,046

118

TABLE 5-18
SINGLE-WALL METAL PIPE OR TYPE B ASBESTOS CEMENT VENT[NFPA 54: TABLE 13.2(e)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:DRAFT HOOD-EQUIPMENT
APPLIANCE VENT CONNECTION:DIRECT TO PIPE OR VENT
VENT CONNECTOR CAPACITY
TOTAL VENT HEIGHT H (ft)CONNECTOR RISE R (ft)VENT CONNECTOR DIAMETER – D (inch)
345678
APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
6-81214068102146205
2285386124178235
3346198147204275
151234477117179240
2305692134194265
33564102155216298
30 and up1254984129190270
2315897145211295
33668107164232321
COMMON VENT CAPACITY
TOTAL VENT HEIGHT H (ft)COMMON VENT DIAMETER – D(inch)
456781012
COMBINED APPLIANCE INPUT RATING IN THOUSANDS OF BTU PER HOUR
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
64878111155205320NA
85589128175234365505
105995136190250395560
1571115168228305480690
2080129186260340550790
30NA147215300400650940
50NANANA3604908101,190
TABLE 5-19
EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(f)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:NAT + NAT
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
INTENDED USE: COMBINED APPLIANCE MAXIMUM INPUT RATING IN THOUSANDS OF BTU PER HOUR
VENT HEIGHT H (ft)INTERNAL AREA OF CHIMNEY (inch2)
12192838506378113
For SI units, 1 in. = 25.4 mm, 1 in. 2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
6254671103143188246NA
8285382119163218278408
10315690131177236302454
15NA67106152212283365546
20NANANANANA325419648
30NANANANANANA496749
50NANANANANANANA922
100NANANANANANANANA

119

TABLE 5-20
EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(g)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:NAT + NAT
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
INTENDED USE MINIMUM ALLOWABLE INPUT RATING OF SPACE-HEATING APPLIANCE IN THOUSANDS OF BTU PER HOUR
VENT HEIGHT H (ft)INTERNAL AREA OF CHIMNEY (inch2)
12192838506378113
For SI units, 1 in. =25.4mm, 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW, °C = (°F - 32)/1.8.
Note: See Figure G.2.4 for a map showing local 99 percent winter design temperatures in the United States.
Local 99% winter design temperature: 37°F or greater
60000000NA
800000000
1000000000
15NA0000000
20NANANANANA18400
30NANANANANA3933340
50NANANANANANANA579
100NANANANANANANANA
Local 99% winter design temperature: 27°F to 36°F
60068NANA180212NA
80082NANA187214263
10051NANANA210225265
15NANANANANA253274305
20NANANANANA307330362
30NANANANANANA445485
50NANANANANANANA763
100NANANANANANANANA
Local 99% winter design temperature: 17°F to 26°F
6NANANANANANANANA
8NANANANANANA264352
10NANANANANANA278358
15NANANANANANA331398
20NANANANANANA387457
30NANANANANANANA581
50NANANANANANANA862
100NANANANANANANANA
Local 99% winter design temperature: 5°F to 16°F
6NANANANANANANANA
8NANANANANANANANA
10NANANANANANANA430
15NANANANANANANA485
20NANANANANANANA547
30NANANANANANANA682
50NANANANANANANANA
100NANANANANANANANA
Local 99% winter design temperature: 4°F or lower Not recommended for any vent configurations

120

TABLE 5-21
EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(h)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:FAN+NAT
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
 INTENDED USE: COMBINED APPLIANCE MAXIMUM INPUT RATING IN THOUSANDS OF BTU PER HOUR
VENT HEIGHT
H
(ft)
INTERNAL AREA OF CHIMNEY (inch)2
12192838506378113
For SI units, 1 in = 25.4 mm. 1 in.2 = 645 mm2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
674119178257351458582853
880130193279384501636937
10841382072994095386861,010
15NA1522333344676117811,156
20NANA2503685086688581,286
30NANANA4045647479691,473
50NANANANANA8311,0891,692
100NANANANANANANA1,921

121

TABLE 5-22
EXTERIOR MASONRY CHIMNEY [NFPA 54: TABLE 13.2(i)]
 NUMBER OF APPLIANCES:TWO OR MORE
APPLIANCE TYPE:FAN + NAT
APPLIANCE VENT CONNECTION:TYPE B DOUBLE-WALL CONNECTOR
INTENDED USE: MINIMUM ALLOWABLE INPUT RATING OF SPACE-HEATING APPLIANCE IN THOUSANDS OF BTU PER HOUR
VENT HEIGHT H (ft)INTERNAL AREA OF CHIMNEY (inch2)
12192838506378113
For SI units, 1 in. = 25.4 mm, 1 in2 = 645 mm 2, 1 ft. = 0.305 m, 1000 Btu per hr = 0.293 kW.
Note: See Figure 5-13 for a map showing local 99 percent winter design temperatures in the United States.
Local 99‰ winter design temperature: 37°F or greater
600000000
800000000
1000000000
15NA0000000
20NANA12319024918400
30NANANA3343983933340
50NANANANANA714707579
100NANANANANANANA1,600
Local 99‰ winter design temperature: 27°F to 36°F
60068116156180212266
80082127167187214263
1005197141183210225265
15NA111142183233253274305
20NANA187230284307330362
30NANANA330319419445485
50NANANANANA672705763
100NANANANANANANA1,554
Local 99‰ winter design temperature: 17°F to 26°F
605599141182215259349
85274111154197226264352
10NA90125169214245278358
15NANA167212263296331398
20NANA212258316352387457
30NANANA362429470507581
50NANANANANA723766862
100NANANANANANANA1,669
Local 99‰ winter design temperature: 5°F to 16°F
6NA78121166214252301416
8NA94135182230269312423
10NA111149198250289331430
15NANA193247305346393485
20NANANA293360408450547
30NANANA377450531580682
50NANANANANA797853972
100NANANANANANANA1,833
Local 99‰ winter design temperature: -10°F to 4°F
6NANA145196249296349484
8NANA159213269320371494
10NANA175231292339397513
15NANANA283351404457586
20NANANA333408468528650
30NANANANANA603667805
50NANANANANANA9551,003
100NANANANANANANANA
Local 99‰winter design temperature: -11°F or lower
Not recommended for any vent configurations

122

PART II

This is originally from NFPA 54, which contains additional references from the UPC.

Sizing of Venting Systems Serving Appliances Equipped with Draft Hoods, Category I Appliances, and Appliances Listed for Use with Type B Vents

G.1 Examples Using Single Appliance Venting Tables. See Figure G.1 (a) through Figure G.1(n).

FIGURE G.1(a) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A TYPE B DOUBLE-WALL VENT.

FIGURE G.1(a) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A TYPE B DOUBLE-WALL VENT.

FIGURE G.1(b) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A SINGLE-WALL METAL VENT CONNECTOR.

FIGURE G.1(b) TYPE B DOUBLE-WALL VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A SINGLE-WALL METAL VENT CONNECTOR.

FIGURE G.1(c) VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A MASONRY CHIMNEY AND A TYPE B DOUBLE-WALL VENT CONNECTOR.

FIGURE G.1(c) VENT SYSTEM SERVING A SINGLE APPLIANCE WITH A MASONRY CHIMNEY AND A TYPE B DOUBLE-WALL VENT CONNECTOR.

FIGURE G.1(d) VENT SYSTEM SERVING A SINGLE APPLIANCE USING A MASONRY CHIMNEY AND A SINGLE-WALL METAL VENT CONNECTOR.

FIGURE G.1(d) VENT SYSTEM SERVING A SINGLE APPLIANCE USING A MASONRY CHIMNEY AND A SINGLE-WALL METAL VENT CONNECTOR.

123

FIGURE G.1(e) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE

FIGURE G.1(e) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING A SINGLE DRAFT-HOOD-EQUIPPED APPLIANCE

FIGURE G.1(f) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND TYPE B DOUBLE-WALL VENT CONNECTORS

FIGURE G.1(f) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND TYPE B DOUBLE-WALL VENT CONNECTORS

FIGURE G.1(g) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND SINGLE-WALL METAL VENT CONNECTORS.

FIGURE G.1(g) VENT SYSTEM SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT AND SINGLE-WALL METAL VENT CONNECTORS.

FIGURE G.1(h) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT CONNECTORS.

FIGURE G.1(h) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH TYPE B DOUBLE-WALL VENT CONNECTORS.

124

FIGURE G.1(i) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE-WALL VENT CONNECTORS.

FIGURE G.1(i) MASONRY CHIMNEY SERVING TWO OR MORE APPLIANCES WITH SINGLE-WALL VENT CONNECTORS.

FIGURE G.1(j) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING TWO OR MORE DRAFT-HOOD-EQUIPPED APPLIANCES.

FIGURE G.1(j) ASBESTOS CEMENT TYPE B OR SINGLE-WALL METAL VENT SYSTEM SERVING TWO OR MORE DRAFT-HOOD-EQUIPPED APPLIANCES.

FIGURE G.1(k) USE OF MANIFOLDED COMMON VENT CONNECTOR.

FIGURE G.1(k) USE OF MANIFOLDED COMMON VENT CONNECTOR.

FIGURE G.1(l) USE OF OFFSET COMMON VENT.

FIGURE G.1(l) USE OF OFFSET COMMON VENT.

125

G.1.1 Example 1: Single Draft-Hood-Equipped Appliance. An installer has 120,000-Btu/h input appliance with a five (5) inch diameter draft hood outlet that needs to be vented into a ten (10) foot high Type B vent system. What size vent should be used assuming (1) a five (5) foot lateral single-wall metal vent connector is used with two (2) 90 degree elbows or (2) a five (5) foot lateral single-wall metal vent connector is used with three (3) 90 degree elbows in the vent system? (See Figure G.1.1).

Solution

Table 5-9 should be used to solve this problem because single-wall metal vent connectors are being used with a Type B vent, as follows:

  1. Read down the first column in Table 5-9 until the row associated with a ten (10) foot height and five (5) foot lateral is found. Read across this row until a vent capacity exceeding 120,000 Btu/h is located in the shaded columns labeled NAT Max for draft-hood-equipped appliances. In this case, a five (5) inch diameter vent has a capacity of 122,000 Btu/h and can be used for this application.
  2. If three (3) 90 degree elbows are used in the vent system, the maximum vent capacity listed in the tables must be reduced by 10 percent (See NFPA 54:13.1.3). This implies that the five (5) inch diameter vent has an adjusted capacity of only 110,000 Btu/h. In this case, the vent system must be increased to six (6) inches in diameter. See the following calculations:

FIGURE G.1(m) MULTISTORY GAS VENT DESIGN PROCEDURE FOR EACH SEGMENT OF SYSTEM

FIGURE G.1(m) MULTISTORY GAS VENT DESIGN PROCEDURE
FOR EACH SEGMENT OF SYSTEM

122,000 x 0.90 = 110,000 for five (5) inch vent

From Table 5-10, select six (6) inch vent.
186,000 x 0.90 = 167,000

This figure is exceeding the required 120,000. Therefore, use a six (6) inch vent and connector where three (3) elbows are used.

G.1.2. Example 2: Single Fan-Assisted Appliance. An installer has an 80,000 Btu/h input fan-assisted appliance that must be installed using ten (10) feet of lateral connector attached to a thirty (30) foot high Type B vent. Two (2) 90 degree elbows are needed for the installation. Can a single-wall metal vent connector be used for this application? See Figure G.1.2.

Solution

Table 5-9 refers to the use of single-wall metal vent connectors with Type B vent. In the first column find the row associated with a thirty (30) foot height and a ten (10) foot lateral. Read across this row, looking at the FAN Min and FAN Max columns, to find that a three (3) inch diameter single-wall metal vent connector is not recommended. Moving to the next larger

FIGURE G.1(n) PRINCIPLES OF DESIGN OF MULTISTORY VENTS USING VENT CONNECTOR AND COMMON VENT DESIGN TABLES.

FIGURE G.1(n) PRINCIPLES OF DESIGN OF MULTISTORY VENTS USING VENT CONNECTOR AND COMMON VENT DESIGN TABLES.

126

size single-wall connector (four (4) inch), we find that a four (4) inch diameter single-wall metal connector has a recommended maximum vent capacity of 144,000 Btu/h. The 80,000 Btu/h fan-assisted appliance is outside this range, so the conclusion is that a single-wall metal connector could be used to vent the appliance. Table 5-9 shows the acceptable range of vent capacities for a four (4) inch vent with five (5) feet of lateral to be between 72,000 Btu/h and 157,000 Btu/h.

If the appliance cannot be moved closer to the vertical vent, then a Type B vent could be used as the connector material. In this case, Table 5-8 shows that, for a thirty (30) foot high vent with ten (10) feet of lateral, the acceptable range of vent capacities for a four (4) inch diameter vent attached to a fan-assisted appliance is between 37,000 Btu/h and 150,000 Btu/h.

G.1.3. Example 3: Interpolating Between Table Values. An installer has an 80,000 Btu/h input appliance with a four (4) inch diameter draft hood outlet that needs to be vented into a twelve (12) foot high Type B vent. The vent connector has a 5-foot lateral length and is also Type B vent. Can this appliance be vented using a four (4) inch diameter vent?

Solution

Table 5-8 is used in the case of an all Type B Vent system. However, since there is no entry in Table 5-8 for a height of twelve (12) feet, interpolation must be used. Read down the four (4) inch diameter. NAT Max column to the row associated with a ten (10) foot height and five (5) foot lateral to find the capacity value of 77,000 Btu/h. Read further down to the fifteen (15) foot height, five (5) foot lateral row to find the capacity value of 87,000 Btu/h. The difference between the fifteen (15) foot height capacity value and the ten (10) foot height capacity value is 10,000 Btu/h. The capacity for a vent system with a twelve (12) foot height is equal to the capacity for a ten (10) foot height plus two-fifths (⁄25) of the difference between the ten (10) foot and height plus two-fifths (25) for the difference between the ten (10) foot and fifteen (15) foot height values, or 77,000 +2/5 x 10,000 = 81,000 Btu/h. Therefore, a four (4) inch diameter vent can be used in the installation.

G.2 Examples Using Common Venting Tables.

G.2.1 Example 4: Common Venting Two Draft-Hood- Equipped Appliances. A 35,000-Btu/h water heater is to be common vented with a 150,000 Btu/h furnace, using a common vent with a total height of thirty (30) feet. The connector rise is two (2) feet for the water heater with a horizontal length of four (4) feet. The connector rise for the furnace is three (3) feet with a horizontal length of eight (8) feet. Assume single-wall metal connectors will be used with Type B vent. What size connectors and combined vent should be used in this installation?

See Figure G.2.1.

FIGURE G.1.1 SINGLE DRAFT HOOD-EQUIPPED APPLIANCE – EXAMPLE 1

FIGURE G.1.1 SINGLE DRAFT HOOD-EQUIPPED APPLIANCE – EXAMPLE 1

FIGURE G.1.2 SINGLE FAN-ASSISTED APPLIANCE – EXAMPLE 2

FIGURE G.1.2 SINGLE FAN-ASSISTED APPLIANCE – EXAMPLE 2

FIGURE G.2.1 COMMON VENTING TWO DRAFT HOOD-EQUIPPED APPLIANCES – EXAMPLE 4

FIGURE G.2.1 COMMON VENTING TWO DRAFT HOOD-EQUIPPED APPLIANCES – EXAMPLE 4

127

Solution

Table 5-15 should be used to size single-wall metal vent connectors attached to Type B vertical vents. In the vent connector capacity portion of Table 5-15, find the row associated with a thirty (30) foot vent height. For a two (2) foot rise on the vent connector for the water heater, read the shaded columns for draft-hood-equipped appliances to find that a three (3) inch diameter vent connector has a capacity of 37,000 Btu/h. Therefore, a three (3) inch single-wall metal vent connector can be used with the water heater. For a draft-hood-equipped furnace with a three (3) foot rise, read across the appropriate row to find that a five (5) inch diameter vent connector has a maximum capacity of 120,000 Btu/h. (which is too small for the furnace), and a six (6) inch diameter vent connector has a maximum vent connector should be used with the 150,000 Btu/h furnace. Since both vent connector horizontal lengths are less than the maximum lengths listed in Table 5-8, the table values can be used without adjustments.

In the common vent capacity portion of Table 5-15, find the row associated with a thirty (30) foot vent height and read over to the NAT + NAT portion of the six (6) inch diameter column to find a maximum combined capacity of 257,000 Btu/h. Since the two (2) appliances total only 185,000 Btu/h, a six (6) inch common vent can be used.

G.2.2 Example 5(a): Common Venting a Draft-Hood-Equipped Water Heater with a Fan-Assisted Furnace into a Type B Vent. In this case, a 35,000-Btu/h input draft-hood-equipped water heater with a four (4) inch diameter draft hood outlet, two (2) feet of connector rise, and four (4) feet of horizontal length is to be common vented with a 100,000 Btu/h fan-assisted furnace with a four (4) inch diameter flue collar, three (3) feet of connector rise, and six (6) feet of horizontal length. The common vent consists of a thirty (30) foot height of Type B vent. What are the recommended vent diameters for each connector and the common vent? The installer would like to use a single-wall metal vent connector. See Figure G.2.2.

Solution (See Table 5-15)

Water Heater Vent Connector Diameter. Since the water heater vent connector horizontal length of four (4) feet is less than the maximum value listed in Table 5-15, the venting table values can be used without adjustment. Using the Vent Connector Capacity portion of Table 5-15, read down the Total Vent Height (H) column to thirty (30) feet and read across the two (2) feet Connector Rise (R) row to the first Btu/h rating in the NAT Max column that is equal to or exceeding the water heater input rating. The table shows that a three (3) inch vent connector has a maximum input rating of 37,000 Btu/h. Although this rating is exceeding the water heater input rating, a three (3) inch vent is exceeding the water heater input rating, a three (3) inch vent connector is prohibited by Section 511.1.1(5). A four (4) inch vent connector has a maximum input rating of 67,000 Btu/h and is equal to the draft hood outlet diameter. A four (4) inch vent connector is

FIGURE G.2.2 COMMON VENTING A DRAFT HOOD-EQUIPPED WATER HEATER WITH A FAN-ASSISTED FURNACE INTO A TYPE B DOUBLE-WALL COMMON VENT–EXAMPLE 5(a).

FIGURE G.2.2 COMMON VENTING A DRAFT HOOD-EQUIPPED WATER HEATER WITH A FAN-ASSISTED FURNACE INTO A TYPE B DOUBLE-WALL COMMON VENT–EXAMPLE 5(a).

TABLE G.2.3
MASONRY CHIMNEY LINER DIMENSIONS WITH CIRCULAR EQUIVALENTS
NOMINAL LINER SIZE (inch)INSIDE DIMENSIONS OF LINER (inch)INSIDE DIAMETER OR EQUIVALENT DIAMETER (inch)EQUIVALENT AREA (inch2)
For SI units, 1 in. = 25.4 mm, 1 in.2 = 645 mm2.
Note: When liner sizes differ dimensionally from those shown in this table, equivalent diameters can be determined from published tables for square and rectangular ducts of equivalent carrying capacity or by other engineering methods.
4 x 82½ x 6½4.012.2
  5.019.6
  6.028.3
  7.038.3
8 x 86¾ x 6¾7.442.7
  8.050.3
8 x 126½ x 10½9.063.6
  10.078.5
12 x 129¾ x 9¾10.483.3
  11.095.0
12 x 169½ x 13½11.8107.5
  12.0113.0
  14.0153.9
16 x 1613¼ x 13¼14.5162.9
  15.0176.7
16 x 2013 x 1716.2206.1
  18.0254.4
20 x 2016¾ x 16¾18.2260.2
  20.0314.1
20 x 2416½ x 20½20.1314.2
  22.0380.1
24 x 2420¼ x 20¼22.1380.1
  24.0452.3
24 x 2820¼ x 24¼24.1456.2
28 x 2824¼ x 24¼26.4543.3
  27.0572.5
30 x 3025½ x 25½27.9607.0
30 x 3625½ x 31½30.9749.9
  33.0855.3
36 x 3631½ x 31½34.4929.4
  36.01017.9

128

selected. Since the water heater is equipped with a draft hood, there are no minimum input rating restrictions.

Furnace Vent Connector Diameter. Using the Vent Connector Capacity portion of Table 5-15, read down the Total Vent Height (H) column to thirty (30) feet and across the three (3) foot Connector Rise (R) row. Since the furnace has a fanassisted combustion system, find the first FAN Max column with a Btu⁄h rating exceeding the furnace input rating. The four (4) inch vent connector has a maximum input rating of 119,000 Btu⁄h and a minimum input rating of 85,000 Btu⁄h.

The 100,000-Btu⁄h furnace in this example falls within this range, so a four (4) inch connector is adequate. Since the furnace vent connector horizontal length of six (6) feet is less than the maximum value listed in Table 5-8, the venting table values can be used without adjustment. If the furnace had an input rating of 80,000 Btu⁄h then a Type B vent connector would be needed in order to meet the minimum capacity limit (See Table 5-14).

Common Vent Diameter. The total input to the common vent is 135,000 Btu⁄h. Using the Common Vent Capacity portion of Table 5-15, read down the Vent Height (H) column to thirty (30) feet and across this row to find the smallest vent diameter in the FAN + NAT column that has a Btu⁄h rating equal to or exceeding 135,000 Btu⁄h. The four (4) inch common vent has a capacity of 132,000 Btu⁄h and the five (5) inch common vent has a capacity of 202,000 Btu⁄h. Therefore, the five (5) inch common vent should be used in this example.

Summary: In this example, the installer can use of four (4) inch diameter, single-wall metal vent connector for the water heater and a four (4) inch diameter, single-wall metal vent connector for the furnace. The common vent should be a five (5) inch diameter Type B vent.

G.2.3 Example 5(b): Common Venting into an Interior Masonry Chimney. In this case, the water heater and fan-assisted furnace of Example 5(a) are to be common-vented into a claytile-lined masonry chimney with a thirty (30) foot height. The chimney is not exposed to the outdoors below the roof line. The internal dimensions of the clay tile liner are nominally eight (8) inches x twelve (12) inches. Assuming the same vent connector heights, laterals, and materials found in example 5(a), what are the recommended vent connector diameters, and is this an acceptable installation

Solution

Table 5-17 is used to size common venting installations involving single-wall connectors into masonry chimneys.

Water Heater Vent Connector Diameter. Using Table 517, Vent Connector Capacity, read down the Vent Height (H) column to thirty (30) feet, and read across the two (2) foot Connector Rise (R) row to the first Btu⁄h rating in the NAT Max column that is equal to or exceeding the water heater input rating. The table shows that a three (3) inch vent connector has a maximum input of only 31,000 Btu⁄h, while a four (4) inch vent connector has a maximum input of 57,000 Btu⁄h. A four (4) inch vent connector must therefore be used.

Furnace Vent Connector Diameter. Using the Vent Connector Capacity portion of Table 5-17, read down the total Vent Height (H) Column to thirty (30) feet and across the three (3) feet Connector Rise (R) row. Because the furnace has a fan-assisted combustion system, find the first FAN Max column with a Btu⁄h rating exceeding the furnace input rating. The four (4) inch vent connector has a maximum input rating of 127,000 Btu⁄h and a minimum input rating of 95,000 Btu⁄h. The 100,000 Btu⁄h furnace in this example falls within this range, so a four (4) inch connector is adequate.

Masonry Chimney. From Table G.2.3, the equivalent area for a nominal liner size of eight (8) inches x twelve (12) inches is sixty-three and six-tenths (63.6) of a square inch. Using Table 5-17, Common Vent Capacity, read down the FAN + NAT column under the Minimum Internal Area of Chimney value of sixty-three (63) to the row for thirty (30) foot height to find a capacity value of 739,000 Btu⁄h. The combined input rating of the furnace and water heater, 135,000 Btu⁄h, is less than the table value so this is an acceptable installation.

Section 511.1.8 requires the common vent area to not exceed seven (7) times the smallest listed appliance categorized vent area, flue collar area, or draft hood outlet area. Both appliances in this installation have four (4) inch diameter outlets. From Table G.2.3, the equivalent area for an inside diameter of four (4) inches in twelve and two-tenths (12.2) of a square inch. Seven (7) times twelve and two-tenths (12.2) equals eighty-five and four-tenths (85.4), which is exceeding sixtythree and six-tenths (63.6), so this configuration is acceptable.

G.2.4 Example 5(c): Common Venting into an Exterior Masonry Chimney. In this case, the water heater and fan-assisted furnace of Examples 5(a) and 5(b) are to be commonvented into an exterior masonry chimney. The chimney height, clay-tile-liner dimensions, and vent connector heights and laterals are the same as in Example 5(b). This system is being installed in Charlotte, North Carolina. Does this exterior masonry chimney need to be relined? If so, what corrugated metallic liner size is recommended? What vent connector diameters are recommended? See Table G.2.3 and Figure 5-14.

Solution

According to 511.2.17, Type B vent connectors are required to be used with exterior masonry chimneys. Use Table 5-21 and Table 5-22 to size FAN+NAT common venting installations involving Type-B double-wall connectors into exterior masonry chimneys.

The local 99 percent winter design temperature needed to use Table 5-21 and Table 5-22 to can be found in the ASHRAE Handbook– Fundamentals. For Charlotte, North carolina, this design temperature is 19°F (-7.22°C).

Chimney Liner Requirement. As in Example 5(b), use the sixty-three (63) square inch column of Table 5-21 to the thirty

129

(30) foot height row to find that the combined appliance maximum input is 747,000 Btu⁄h. The combined input rating of the appliance in this installation, 135,000 Btu⁄h, is less than the maximum value, so this criterion is satisfied. Table 5-22, at a 19°F (-7.22°C) design temperature, and at the same vent height and internal area used earlier, shows that the minimum allowable input rating of a space-heating appliance is 470,000 Btu⁄h. The furnace input rating of 100,000 Btu⁄h is less than this minimum value. So this criterion is not satisfied, and an alternative venting design needs to be used, such as a Type B vent shown in Example 5(a) or a listed chimney liner system shown in the rest of the example.

According to Section 511.2.19, Table 5-9 or Tables 5-14 or 5-15 are used for sizing corrugated metallic liners in masonry chimneys, with the maximum common vent capacities reduced by 20 percent. This example will be continued assuming Type B vent connectors.

Water Heater Vent Connector Diameter. Using Table 5-14 Connector Capacity, read down the total Vent Height (H) column to thirty (30) feet, and read across the two (2) foot Connector Rise (R) row to the first Btu⁄hour rating in the Nat Max column that is equal to or exceeding the water heater input rating. The table shows that a three (3) inch vent connector has a maximum capacity of 39,000 Btu⁄h. Although this rating is exceeding the water heater input rating, a three (3) inch vent connector is prohibited by Section 511.1.6. A four (4) inch vent connector has a maximum input rating of 70,000 Btu⁄h and is equal to the draft hood outlet diameter. A four (4) inch vent connector is selected.

Furnace Vent Connector Diameter. Using Table 5-14, Vent Connector Capacity, read down the total Vent Height (H) column to thirty (R) feet, and read across the three (3) foot Connector Rise (R) row to the first Btu⁄h rating in the FAN MAX column that is equal to or exceeding the furnace input rating. The 100,000 Btu⁄h furnace in this example falls within this range, so a four (4) inch connector is adequate.

Chimney Liner Diameter. The total input to the common vent is 135,000 Btu⁄h. Using the Common Vent Capacity portion of Table 5-14, read down the total Vent Height (H) column to thirty (30) feet and across this row to find the smallest vent diameter in the FAN + NAT column that has a Btu⁄h rating exceeding 135,000 Btu⁄h.The four (4) inch common vent has a capacity of 138,000 Btu⁄h. Reducing the maximum capacity by 20 percent (See 13.2.19) results in a maximum capacity for a four (4) inch corrugated liner of 110,000 Btu⁄h, less than the total input of 135,000 Btu⁄h. So a larger liner is needed. The five (5) inch common vent capacity listed in Table 5-14 is 210,000 Btu⁄h, and after reducing by 20 percent is 168,000 Btu⁄h. Therefore, a five (5) inch corrugated metal liner should be used in this example.

Single Wall Connectors. Once it has been established that relining the chimney is necessary, Type B double-wall vent connectors are not specifically required. This example could be redone using Table 5-15 for single-wall vent connectors. For this case, the vent connector and liner diameters would be the same as found for Type B double-wall connectors.

The following is originally from NFPA 54, National Fuel Gas Code, which contains additional reference.

Example of Combination of Indoor and Outdoor Combustion and Ventilation Opening Design.

J.1 Example of Combination Indoor and Outdoor Combustion Air Opening. Determine the required combination of indoor and outdoor combustion air opening sizes for the following appliance installation example.

Example Installation: A fan-assisted furnace and a draft-hood-equipped water heater with the following inputs are located in a fifteen (15) foot x thirty (30) foot basement with an eight (8) foot ceiling. No additional indoor spaces can be used to help meet the appliance combustion air needs.

Fan-Assisted Furnace Input: 100,000 Btu⁄h

Draft-Hood-Equipped Water Heater Input: 40,000 Btu⁄h

Solution

  1. Determine the total available room volume: Equipment room volume:
    Fifteen (15) feet x thirty (30) feet with an eight (8) foot ceiling = thirty-six-hundred (3,600) cubic feet
  2. Determine the total required volume: The standard method to determine combustion air will be used to calculate the required volume.
    The combined input for the appliances located in the basement is calculated as follows:
    100,000 Btu⁄h +40,000 Btu⁄h = 14,000 Btu⁄h
    The Standard Method required that the required volume be determined based on fifty (50) cubic feet per 1,000 Btu⁄hour.
    Using Table A.9.3.2.1, the required volume for a 140,000 Btu⁄h water heater is seven-thousand (7,000) cubic feet.
    Conclusion: Indoor volume is insufficient to supply combustion air since the total of thirty-six-hundred (3,600) cubic feet does not meet the required volume of seven-thousand (7,000) cubic feet. Therefore, additional combustion air must be provided from the outdoor.
  3. Determine ratio of the available volume to the required volume:
    Images
  4. Determine the reduction factor to be used to reduce the full outdoor air opening size to the minimum required based on ratio of indoor spaces:
    1.00-0.51 (from Step 3) = 0.49

    130

  5. Determine the single outdoor combustion air opening size as if combustion air is to come from outdoors. In this example, the combustion air opening directly communicates with the outdoors.
    Images
  6. Determine the minimum outdoor combustion air opening area:
    Outdoor opening area = 0.49 (from Step 4) × 47 in.2 = 23 in.2
    Section 507.3 requires the minimum dimension of the air opening shall be not less than three (3) inches.
TABLE A.9.3.2.1
STANDARD METHOD VOLUME, ALL APPLIANCES
APPLIANCE INPUT (Btu⁄h)REQUIRED VOLUME (ft.3)
507.4.1 See Figure 5-8 • 507.4.1(1) See Figure 5-9 and Figure 5-10 •
507.4.1(2) See Figure 5-11 • 507.4.2 See Figure 5-12
5000250
10 000500
15 000750
20 0001000
25 0001250
30 0001500
35 0001750
40 0002000
45 0002250
50 0002500
55 0002750
60 0003000
65 0003250
70 0003500
75 0003750
80 0004000
85 0004250
90 0004500
95 0004750
100 0005000
105 0005250
110 0005500
115 0005750
120 0006000
125 0006250
130 0006500
135 0006750
140 0007000
145 0007250
150 0007500
160 0008000
170 0008500
180 0009000
190 0009500
200 00010 000
210 00010 500
220 00011 000
230 00011 500
240 00012 000
250 00012 500
260 00013 000
270 00013 500
280 00014 000
290 00014 500
300 00015 000

131

132

CALIFORNIA PLUMBING CODE–MATRIX ADOPTION TABLE
CHAPTER 6-WATER SUPPLY AND DISTRIBUTION
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
The state agency does not adopt sections identified by the following symbol:†
Adopt Entire Chapter                 
Adopt Entire Chapter as amended (amended sections listed below)X XX  XXXXXX  X  
Adopt only those sections that are listed below X          X   X
Chapter/Section
601.1  XX           X 
601.2.2  XX             
601.4  XX             
601.5                X
601.5.1                X
601.5.2                X
601.5.3                X
601.6              X  
601.7              X  
601.8              X  
601.9              X  
603.4.11  XX             
603.4.16, Note X               
604.1 Exc. 1        XXXX     
604.1 Exc. 2        XXXX     
604.1 Exc. 3        XXXX     
604.1 Exc. 4        XXXX     
604.1 Exc. 5        XXXX     
604.1.1  XX             
604.10X XX    XXXX     
604.11 & subsections        XXXX     
604.13X XX             
604.13 Exc.        XXXX     
604.13.1X XX             
604.13.1 Exc.        XXXX     
604.13.2X XX             
604.13.2 Exc.        XXXX     
Table 6-4X XX  XX     XX  
605.8        XXXX     
609.9        XXXX     
609.10               
Table 6-5   X             
609.11        XX X     
612.0 & subsections        XXXX     
Table 6-9        XXXX     
613.0 & subsections        XXXX     
614.0        XXXX     
614.1        XXXX     
614.2        XXXX     
614.3        XXXX     
614.4        X        

133

134

CHAPTER 6
WATER SUPPLY AND DISTRIBUTION

601.0 Hot and Cold Water Required.

601.1 Except where not deemed necessary for safety or sanitation by the Authority Having Jurisdiction, each plumbing fixture shall be provided with an adequate supply of potable running water piped thereto in an approved manner, so arranged as to flush and keep it in a clean and sanitary condition without danger of backflow or cross-connection. Water closets and urinals shall be flushed by means of an approved flush tank or flushometer valve.

Exceptions:

  1. [HCD 1, HCD 2, and DWR] Listed fixtures that do not require water for their operation and are not connected to the water supply.
  2. [HCD 1 & HCD 2] For limited-density owner-built rural dwellings, potable water shall be available to the dwelling site, although such water need not be pressurized. Where water is not piped from a well, spring, cistern, or other source, there shall be a minimum reserve of 50 gallons (189 L) of potable water available. Where water delivery is pressurized, piping shall be installed in accordance with the provisions of this chapter.
  3. [HCD 1 & HCD 2] Where deemed not necessary for safety or sanitation by the Enforcing Agency.
  4. [HCD 1 & HCD 2] Recycled water or treated graywater may be allowed as specified in Chapter 16 Part II of this code.
  5. [DWR] Where a public agency requires a building to use recycled water to flush water closets and urinals in accordance with California Water Code 13554.

In occupancies where plumbing fixtures are installed for private use, hot water shall be required for bathing, washing, laundry, cooking purposes, dishwashing or maintenance. In occupancies where plumbing fixtures are installed for public use, hot water shall be required for bathing and washing purposes. This requirement shall not supersede the requirements for individual temperature control limitations for public lavatories, bathtubs, whirlpool bathtubs and shower control valves.

601.2 Identification of a Potable and Non-potable Water System. In buildings where potable water and non-potable water systems are installed, each system shall be clearly identified in accordance with Sections 601.2.1 through 601.2.4

601.2.1 Potable Water. Green background with white lettering.

601.2.2 Color and Information. Each system shall be identified with a colored pipe or band and coded with paints, wraps and materials compatible with the piping.

Except as required in Sections 1610.0 and 1617.0, non-potable water systems shall have a yellow background with black uppercase lettering, with the words “CAUTION: NON-POTABLE WATER, DO NOT DRINK.” Each non-potable system shall be identified to designate the liquid being conveyed, and the direction of normal flow shall be clearly shown. The minimum size of the letters and length of the color field shall conform to Table 6-1 [HCD 1 & HCD 2] An international symbol of a glass in a circle with a slash through it shall be provided similar to that shown in Figure 6-1 for all non-portable water systems.

The background color and required information shall be indicated every twenty (20) feet (6,096 mm) but not less than once per room, and shall be visible from the floor level.

TABLE 6-1
MINIMUM LENGTH OF COLOR FIELD AND SIZE OF LETTERS
OUTSIDE DIAMETER OF PIPE OR COVERINGMINIMUM LENGTH OF COLOR FIELDMINIMUM SIZE OF LETTERS
inches(mm)inches(mm)inches(mm)
½ to 1¼(15 to 32)8(203)½(12.7)
1½ to 2(40 to 50)8(203)¾(19.1)
2½ to 6(65 to 150)12(305)(32)
8 to 10(200 to 250)24(610)(64)
Over 10(Over 250)32(813)(89)

601.2.3 Fixtures. Where vacuum breakers or backflow preventers are installed with fixtures listed in Table 14—1, identification of the discharge side shall be permitted to be omitted.

601.2.4 Outlets. Each outlet on the non-potable water line that is used for special purposes shall be posted with black uppercase lettering as follows: “CAUTION: NON-POTABLE WATER, DO NOT DRINK.”

FIGURE 6-1 INTERNATIONAL SYMBOL

FIGURE 6-1
INTERNATIONAL SYMBOL

601.3 Faucets and diverters shall be connected to the water distribution system so that hot water corresponds to the left side of the fittings.

601.4 [HCD 1 & HCD 2] All sources for drinking water shall be maintained in a clean and sanitary condition. Drinking fountains and portable water dispensers shall not be located in toilet rooms.

601.5 [CA] Schools of Cosmetology and Cosmetological Establishments.

135

TABLE 6-2
BACKFLOW PREVENTION DEVICES, ASSEMBLIES AND METHODS
DEGREE OF HAZARD
DEVICE, ASSEMBLY, OR METHOD1APPLICABLE STANDARDSPOLLUTION
(LOW HAZARD)
CONTAMINATION
(HIGH HAZARD)
INSTALLATION2,3
  BACK- SIPHONAGEBACK-PRESSUREBACK-SIPHONAGEBACK-PRESSURE 
1 See description of devices and assemblies in this chapter.
2 Installation in pit or vault requires previous approval by the Authority Having Jurisdiction.
3 Refer to general and specific requirement for installation.
4 Not to be subjected to operating pressure for more than twelve (12) hours in any twenty-four (24) hour period.
5 For deck-mounted and equipment-mounted vacuum breaker, see Section 603.4.15.
AirgapASME A112.1.2X X See Table 6-3 in this chapter.
Air gap fittings for use with plumbing fixtures, appli-ances and appurtenancesASME A112.1.3X   Air gap fitting is a device with an internal air gap and typical installation includes plumbing fixtures, appli-ances and appurtenances. The critical level shall not be installed below the flood level rim.
Atmospheric-type vacuum breaker (consists of a body, checking member and atmospheric port)ASSE 1001 or CSA B64.1.1X X Upright position. No value downstream. Minimum of six (6) inches (152 mm) or listed distance above all downstream piping and flood-level rim of receptor.4,5
Antisiphon fill valve (ball-cocks) for gravity water closet flush tanks and urinal tanksASSE 1002 or CSA B 125.3X X Installation on gravity water closet flush tank and urinal tanks with the fill valve installed with the critical level not less than 1 inch above the opening of the overflow pipe.4,5
Vacuum breaker wall hydrants, hose bibbs, frost resistant, automatic draining typeASSE 1019 or CSA B 64.2.1.1X X Installation includes wall hydrants and hose bibbs. Such devices are not for use under continuous pressure conditions (means of shut-off downstream of device is prohibited).4,5
Backflow preventer for Carbonated Beverage Dispensers (two independent check valves with a vent to the atmosphere)ASSE 1022X   Installation includes carbonated beverage machines or dispensers. These devices operate under intermittent or continuous pressure conditions.
Spill-Resistant Pressure- Type Backflow Prevention Assembly (single check valve with air inlet vent and means of field testing)ASSE 1056X X Upright position. Minimum of six (6) inches (152 mm) or listed distance above all downstream piping and flood-level rim of receptor.5
Double Check Valve Back-flow Prevention Assem-bly (two independent check valves and means of field testing)ASSE 1015; AWWA C510; CSA B 64.5 or CSA B 64.5.1XX  Horizontal unless otherwise listed. Requires one (1) foot (305 mm) clearance at bottom for maintenance. May need platform/ladder for test and repair. Does not discharge water.
ASSE 1048XX  Horizontal unless otherwise listed. Requires one (1) foot (305 mm) clearance at bottom for maintenance. May need platform/ladder for test and repair. Does not discharge water. Installation includes a fire protection system and is designed to operate under continuous pressure conditions.
Pressure Vacuum Breaker Backflow Prevention Assembly (loaded air inlet valve, internally loaded check valve and means of field testing)ASSE 1020 or CSA B 64.1.2X X Upright position. May have valves downstream. Minimum of twelve (12) inches (305 mm) above all downstream piping and flood level rim of receptor. May discharge water.
Reduced Pressure Principle Backflow Prevention Assembly (two independently acting loaded check valves, a pressure relief valve and means of field testing)ASSE 1047XXXXHorizontal unless otherwise listed. Requires one (1) foot (305 mm) minimum clearance at bottom for maintenance. May need platform/ladder for test and repair. May discharge water. Installation includes a fire protection system and is designed to operate under continuous pressure conditions.
ASSE 1013; AWWA C511; CSA B 64.4 or CSA B 64.4.1XXXXHorizontal unless otherwise listed. Requires one (1) foot (305 mm) minimum clearance at bottom for maintenance. May need platform/ladder for test and repair. May discharge water.

136

601.5.1 Hot-and Cold running Water. At least one sink with hot-and cold-running water shall be provided in each work area or workroom where hairdressing is performed in each school and establishment.

601.5.2 Handwashing Facilities. Each school and establishment shall provide adequate handwashing facilities, including hot-and cold-running water, located within or adjacent to the toilet room or rooms in accordance with Table 4-1.

601.5.3 Drinking Water. Each school and establishment shall supply potable drinking water convenient to students, patrons and employees. Approved sanitary drinking fountains shall be installed and so regulated that a jet of at least 2 inches (51 mm) shall be constantly available.

601.6 [AGR] Meat and Poultry Processing Plants. Except as provided in Section 601.6.4, the water supply shall be ample and potable, with adequate pressure and facilities for its distribution in the plant, and its protection against contamination and pollution.

Note: A water report, issued under the authority of the state health agency, certifying to the potability of the water supply, shall be obtained by the applicant and furnished to the administrator whenever such report is required by the administrator.

601.6.1 A supply of hot water shall be available.

601.6.2 Hose connections with steam and water-mixing valves or hot-water hose connections shall be provided at locations throughout the plant.

601.6.3 The refuse rooms shall be provided with facilities for washing refuse cans and other equipment in the rooms.

601.6.4 Non-potable water is permitted only in those parts of official plants where no product is handled or prepared, and then only for limited purposes, such as on condensers not connected with the potable water supply, in vapor lines serving inedible product rendering tanks, and in sewer lines for moving heavy solids in the sewage.

In all cases, non-potable water lines shall be clearly identified and shall not be cross connected with the potable water supply.

Exception: Cross connection is permitted if this is necessary for fire protection and such connection is of a type with a break to ensure against accidental contamination, and to be approved by local authorities and by the Department.

601.6.5 Equipment using potable water shall be so installed as to prevent back-siphonage into the potable water system.

601.6.6 All pipelines, reservoirs, tanks, cooling towers, and like equipment employed in handling reused water shall be constructed and installed so as to facilitate their cleaning and inspection.

601.6.7 Hot water of such temperature as to accomplish a through cleanup shall be delivered under pressure to outlets.

601.6.7.1 An ample supply of water at not less than 180°F (82°C) shall be available when used for sanitizing purposes.

601.6.8 Pens, alleys, and runways shall have hose connections for cleanup purposes.

601.7 [AGR] Collection Centers and Facilities.

601.7.1 The water supply shall be ample with facilities for its distribution. An ample supply of water at not less than 180°F (82°C), or other suitable method.

601.7.2 The vehicle cleaning and sanitizing area shall be provided with adequate line steam, producing a temperature of at least 180°F (82°C), or other suitable method.

601.7.3 Hose connections with steam and water-mixing valves of hot-and cold-water hose connections shall be provided at locations throughout the building and at unloading and vehicle cleaning slabs.

TABLE 6-3
MINIMUM AIRGAPS FOR WATER DISTRIBUTION4
FIXTURESWHEN NOT AFFECTED BY SIDE WALLS1
WHEN AFFECTED BY SIDEWALLS2
Inches(mm)Inches(mm)
1 Sidewalls, ribs, or similar obstructions do not affect airgaps when spaced from the inside edge of the spout opening a distance exceeding three (3) times the diameter of the effective opening for a single wall, or a distance exceeding four (4) times the effective opening for two (2) intersecting walls.
2 Vertical walls, ribs, or similar obstructions extending from the water surface to or above the horizontal plane of the spout opening other than specified in Note 1 above. The effect of three (3) or more such vertical walls or ribs has not been determined. In such cases, the airgap shall be measured from the top of the wall.
3 The effective opening shall be the minimum cross-sectional area at the seat of the control valve or the supply pipe or tubing that feeds the device or outlet. If two (2) or more lines supply one outlet, the effective opening shall be the sum of the cross-sectional areas of the individual supply lines or the area of the single outlet, whichever is smaller.
4 Airgaps less than one (1) inch (25.4 mm) shall be approved only as a permanent part of a listed assembly that has been tested under actual backflow conditions with vacuums of zero (0) to twenty-five (25) inches (635 mm) of mercury.
Effective openings3 not greater than one-half (½) inch (12.7 mm) in diameter1(25.4)(38)
Effective openings3 not greater than three-quarters (¾) inch (19.1 mm) in diameter(38)(57)
Effective openings3 not greater than one (1) inch (25.4 mm) in diameter2(51)3(76)
Effective openings3 greater than one (1) inch (25.4 mm) in diameterTwo (2) times diameter of effective openingThree (3) times diameter of effective opening

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601.8 [AGR] Renderers. This area shall be provided with live steam or other method of sanitizing vehicles.

601.9 [AGR] Horse Meat and Pet Food Establishments.

601.9.1 The water supply shall be ample, clean, and potable, with facilities for its distribution in the plant, and its protection against contamination and pollution.

601.9.1.1 Equipment using potable water shall be so installed as to prevent back-siphonage into the potable water system.

601.9.1.2 Non-potable water is permitted only in those parts of official plants where no edible product is handled or prepared, and then only for limited purposes, such as on ammonia condensers not connected with the potable water supply, in vapor lines serving inedible product rendering tanks, in connection with equipment used for washing and washing inedible products preparatory to tanking, and in sewer lines for moving heavy solids in sewage. In all cases, non-potable water lines shall be clearly identified and shall not be cross connected with the potable water supply.

Exception: Cross connection is permitted if this is necessary for fire protection, and such connection is of a type with a break to ensure against accidental contamination, and is approved by local authorities or by the Department.

601.9.2 All pipelines, reservoirs, tanks, cooling towers, and like equipment employed in handling reused water shall be constructed and installed so as to facilitate their cleaning and inspection.

601.9.3 Hot water for cleaning rooms and equipment shall be delivered under pressure to outlets and shall be of such temperature as to accomplish a thorough cleanup.

601.9.3.1 An ample supply of water at not less than 180°F (82°C) shall be available when used for sanitizing purposes.

601.9.4 Pens, alleys, and runways shall have hose connections for cleanup purposes.

602.0 Unlawful Connections.

602.1 No installation of potable water supply piping or part thereof shall be made in such a manner that it will be possible for used, unclean, polluted, or contaminated water, mixtures, or substances to enter any portion of such piping from any tank, receptor, equipment, or plumbing fixture by reason of back-siphonage, suction, or any other cause, either during normal use and operation thereof, or when any such tank, receptor, equipment, or plumbing fixture is flooded or subject to pressure exceeding the operating pressure in the hot or cold water piping.

602.2 No person shall make a connection or allow one (1) to exist between pipes or conduits carrying domestic water supplied by any public or private water service system, and any pipes, conduits, or fixtures containing or carrying water from any other source or containing or carrying water that has been used for any purpose whatsoever, or any piping carrying chemicals, liquids, gases, or any substances whatsoever, unless there is provided a backflow prevention device approved for the potential hazard and maintained in accordance with this code. Each point of use shall be separately protected when potential cross-contamination of individual units exists.

602.3 No plumbing fixture, device, or construction shall be installed or maintained or shall be connected to any domestic water supply when such installation or connection provides a possibility of polluting such water supply or cross-connection between a distributing system of water for drinking and domestic purposes and water that becomes contaminated by such plumbing fixture, device, or construction unless there is provided a backflow prevention device approved for the potential hazard.

602.4 No water piping supplied by any private water supply system shall be connected to any other source of supply with out the approval of the Authority Having Jurisdiction, Health Department, or other department having jurisdiction.

603.0 Cross-Connection Control.

Cross-connection control shall be provided in accordance with the provisions of this chapter.

No person shall install any water-operated equipment or mechanism, or use any water-treating chemical or substance, if it is fond that such equipment, mechanism, chemical, or substance causes pollution or contamination of the domestic water supply. Such equipment or mechanism shall be permitted only when equipped with an approved backflow prevention device or assembly.

603.1 Approval of Devices or Assemblies. Before any device or assembly is installed for the prevention of backflow, it shall have first been approved by the Authority Having Jurisdiction. Devices or assemblies shall be tested for conformity with recognized standards or other standards acceptable to the Authority Having Jurisdiction. Backflow prevention devices and assemblies shall comply with Table 6–2, except for specific applications and provisions as stated in Sections 603.4 through 603.4.22.

Devices or assemblies installed in a potable water supply system for protection against backflow shall be maintained in good working condition by the person or persons having control of such devices or assemblies. Such devices or assemblies shall be tested at the time of installation, repair, or relocation and not less than on an annual schedule thereafter, or more often when required by the Authority Having Jurisdiction. If found to be defective or inoperative, the device or assembly shall be repaired or replaced. No device or assembly shall be removed from use or relocated or other device or assembly substituted, without the approval of the Authority Having Jurisdiction.

Testing shall be performed by a certified backflow assembly tester.

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603.2 Backflow Prevention Devices, Assemblies, and Methods.

603.2.1 Airgap. The minimum airgap to afford backflow protection shall be in accordance with Table 6-3.

603.2.2 Atmospheric Vacuum Breaker (AVB). An atmospheric vacuum breaker consists of a body, a checking member, and an atmospheric port.

603.2.3 Hose Connection Backflow Preventer. A hose connection backflow preventer consists of two (2) independent check valves with an independent atmospheric vent between and a means of field testing and draining.

603.2.4 Double Check Valve Backflow Prevention Assembly (DC). A double check valve backflow prevention assembly consists of two (2) independently acting internally loaded check valves, four (4) properly located test cocks, and two (2) isolation valves.

603.2.5 Pressure Vacuum Breaker Backflow Prevention Assembly (PVB). A pressure vacuum breaker backflow prevention assembly consists of a loaded air inlet valve, an internally loaded check valve, two (2) properly located test cocks, and two (2) isolation valves. This device shall be installed indoors only if provisions for spillage are provided.

603.2.6 Pressure Vacuum Breaker Spill-Resistant-Type Backflow Prevention Assembly (SVB). A pressure-type vacuum breaker backflow prevention assembly consists of one (1) check valve force-loaded closed and an air inlet vent valve force-loaded open to atmosphere, positioned downstream of the check valve, and located between and including two (2) tightly closing shutoff valves and test cocks.

603.2.7 Reduced-Pressure Principle Backflow Prevention Assembly (RP). A reduced-pressure principle backflow prevention assembly consists of two (2) independently acting internally loaded check valves, a differential pressure-relief valve, four (4) properly located test cocks, and two (2) isolation valves.

603.3 General Requirements.

603.3.1 Assemblies shall conform to listed standards and be acceptable to the Authority Having Jurisdiction, with Jurisdiction over the selection and installation of backflow prevention assemblies.

603.3.2 Where more than one (1) backflow prevention valve is installed on a single premise, and the valves are installed in one (1) location, each separate valve shall be permanently identified by the permittee in a manner satisfactory to the Authority Having Jurisdiction.

603.3.3 The premise owner or responsible person shall have the backflow prevention assembly tested by a certified backflow assembly tester at the time of installation, repair, or relocation and not less than on an annual schedule thereafter, or more often when required by the Authority Having Jurisdiction. The periodic testing shall be performed in accordance with the procedures referenced in Table 14-1 by a tester qualified in accordance with those standards.

603.3.4 Access and clearance shall be provided for the required testing, maintenance, and repair. Access and clearance shall require a minimum of one (1) foot (305 mm) between the lowest portion of the assembly and grade floor, or platform. Installations elevated exceeding five (5) feet (1,524 mm) above the floor or grade shall be provided with a permanent platform capable of supporting a tester or maintenance person.

603.3.5 Direct connections between potable water piping and sewer-connected wastes shall not be permitted to exist under any condition with or without backflow protection. Where potable water is discharged to the drainage system, it shall be by means of an approved airgap of two (2) pipe diameters of the supply inlet, but in no case shall the gap be less than one (1) inch (25.4 mm). Connection shall be permitted to be made to the inlet side of a trap provided that an approved vacuum breaker is installed not less than six (6) inches (152 mm), or the distance according to the device's listing, above the flood-level rim of such trapped fixture, so that at no time will any such device be subjected to any back-pressure.

603.3.6 Backflow preventers for hot water exceeding 110°F (43.3°C) shall be a type designed to operate at temperatures exceeding 110°F (43.3°C) without rendering any portion of the assembly inoperative.

603.3.7 Fixtures, appliances, or appurtenances with integral backflow preventers or integral airgaps manufactured as a unit shall be installed in accordance with their listing requirements and the manufacturer's instructions.

603.3.8 In cold climate areas, backflow assemblies and devices shall be protected from freezing with an outdoor enclosure or by a method acceptable to the Authority Having Jurisdiction.

603.3.9 Drain lines serving backflow devices or assemblies shall be sized in accordance with the discharge rates of the manufacturer's flow charts of such devices or assemblies.

603.3.10 Design and Installation of Plumbing Fixtures. Plumbing fixtures shall be installed such that fixture fittings, complying with the backflow prevention requirements of ASME A112.18.1/CSA B125.1, Standard for Plumbing Supply Fittings, do not have these requirements compromised by the designated fixture fitting mounting surface.

603.4 Specific Requirements.

603.4.1 Water closet and urinal flushometer valves shall be equipped with an atmospheric vacuum breaker. The vacuum breaker shall be installed on the discharge side of the flushometer valve with the critical level not less than six (6) inches (152 mm), or the distance according to its listing, above the overflow rim of a water closet bowl or the highest part of a urinal.

603.4.2 Water closet and urinal tanks shall be equipped with a ballcock. The ballcock shall be installed with the critical level not less than one (1) inch (25.4 mm) above the full opening of the overflow pipe. In cases where the ballcock has no hush tube, the bottom of the water supply inlet shall be installed one (1) inch (25.4 mm) above the full opening of the overflow pipe.

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603.4.3 Water closet flushometer tanks shall be protected against backflow by an approved backflow prevention assembly, device, or method.

603.4.4 Heat Exchangers.

603.4.4.1 Heat exchangers used for heat transfer, heat recovery, or solar heating shall protect the potable water system from being contaminated by the heat-transfer medium. Single-wall heat exchangers used in indirect-fired water heaters shall meet the requirements of Section 506.4.2. Double-wall heat exchangers shall separate the potable water from the heat-transfer medium by providing a space between the two (2) walls that are vented to the atmosphere.

603.4.5 Water supply inlets to tanks, vats, sumps, swimming pools, and other receptors shall be protected by one of the following means:

  1. An approved airgap.
  2. A listed vacuum breaker installed on the discharge side of the last valve with the critical level not less than six (6) inches (152 mm) or in accordance with its listing.
  3. A backflow preventer suitable for the contamination or pollution, installed in accordance with the requirements for that type of device or assembly as set forth in this chapter.

603.4.6 Protection from Lawn Sprinklers and Irrigation Systems.

603.4.6.1 Potable water supplies to systems having no pumps or connections for pumping equipment, and no chemical injection or provisions for chemical injection, shall be protected from backflow by one of the following devices:

  1. Atmospheric vacuum breaker
  2. Pressure vacuum breaker
  3. Spill-resistant pressure vacuum breaker
  4. Reduced-pressure backflow preventer

603.4.6.2 Where sprinkler and irrigation systems have pumps, connections for pumping equipment, or auxiliary air tanks, or are otherwise capable of creating back-pressure, the potable water supply shall be protected by the following type of device if the backflow device is located upstream from the source of back-pressure:

  1. Reduced-pressure backflow preventer

603.4.6.3 Where systems have a backflow device installed downstream from a potable water supply pump or a potable water supply pump connection, the device shall be one of the following:

  1. Atmospheric vacuum breaker
  2. Pressure vacuum breaker
  3. Spill-resistant pressure vacuum breaker
  4. Reduced-pressure backflow preventer

603.4.6.4 Where systems include a chemical injector or any provisions for chemical injection, the potable water supply shall be protected by the following:

  1. Reduced-pressure backflow preventer

603.4.7 Potable water outlets with hose attachments, other than water heater drains, boiler drains, and clothes washer connections, shall be protected by a nonremovable hose-bibb-type backflow preventer, a nonremovable hose bibb-type vacuum breaker, or by an atmospheric vacuum breaker installed not less than six (6) inches (152 mm) above the highest point of usage located on the discharge side of the last valve. In climates where freezing temperatures occur, a listed self-draining frost-proof hose bibb with an integral backflow preventer or vacuum breaker shall be used.

603.4.8 Water-cooled compressors, degreasers, or any other water-cooled equipment shall be protected by a backflow preventer installed in accordance with the requirements of this chapter.

Note: Water-cooled equipment that produces back-pressure shall be equipped with the appropriate protection.

603.4.9 Water inlets to water-supplied aspirators shall be equipped with a vacuum breaker installed in accordance with its listing requirements and this chapter. The discharge shall drain through an airgap. When the tailpiece of a fixture to receive the discharge of an aspirator is used, the airgap shall be located above the flood-level rim of the fixture.

603.4.10 Potable water makeup connections to steam or hot water boilers shall be provided with a listed backflow protection assembly.

603.4.11 Non-potable Water Piping. In cases where it is impractical to correct individual cross-connections on the domestic waterline, the line supplying such outlets shall be considered a non-potable water line. No drinking or domestic water outlets shall be connected to the non-potable waterline. Whenever possible, portions of the non-potable waterline shall be exposed, and exposed portions shall be properly identified in a manner satisfactory to the Authority Having Jurisdiction. Each outlet on the non-potable waterline that is permitted to be used for drinking or domestic purposes shall be posted: “CAUTION: NON-POTABLE WATER, DO NOT DRINK.” [HCD 1 & HCD 2] An international symbol of a glass in a circle with a slash through it shall be provided similar to that shown in Figure 6-1.

603.4.12 Potable water supply to carbonators shall be protected by either an airgap or a vented backflow preventer for carbonated beverage dispensers installed within the carbonated beverage dispenser. The carbonated beverage dispenser shall bear the label of an approved testing agency, certifying and attesting that such equipment has been tested and inspected and meets the requirements of the approved applicable standard. Carbonated beverage dispensers without an approved internal airgap or vented

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backflow preventer for carbonated beverage dispensers and carbonated beverage dispensing systems shall have the water supply protected with a vented backflow preventer for carbonated beverage dispensers.

603.4.13 Water Treatment Units. Reverse osmosis drinking water treatment units shall meet the requirements of the applicable standards referenced in Table 14-1. Waste or discharge from reverse osmosis or other types of water treatment units shall enter the drainage system through an airgap.

603.4.14 Backflow preventers shall not be located in any area containing fumes that are toxic, poisonous, or corrosive.

603.4.15 Deck-mounted or equipment-mounted vacuum breakers shall be installed in accordance with their listing and the manufacturer's instructions, with the critical level not less than one (1) inch (25.4 mm) above the flood-level rim.

603.4.16 Protection from Fire Systems.

Note: Fire Protection Systems has not been adopted by the State Fire Marshal. This section cannot be adopted or enforced pursuant to California Health and Safety Code 13114.7(a), which is being cited for reference.

California Health and Safety Code 13114.7

  1. For the purposes of this section the following are definitions of class I and class II systems:
    1. American Water Works Association (A.W.W.A) Manual No. M-14 class 1 – Automatic fire sprinkler systems with direct connection from public water mains only; no pumps, tanks, or reservoirs; no physical connection from other water supplies; no antifreeze or additives of any kind; and all sprinkler drains discharging to the atmosphere or other safe outlets.
    2. American Water Works Association (A.W.W.A) Manual No. M-14 class 2–Automatic fire sprinkler systems which are the same as class 1, except that booster pumps may be installed in the connections from the street mains.
  2. Automatic fire sprinkler systems described in subdivision (a) shall not required any backflow protection equipment at the service connection other than required by standards for those systems contained in the publication of the National Fire Protection Association entitled “Installation of Sprinkler Systems” (NFPA Pamphlet No. 13, 1980 edition).

603.4.17 Special Equipment, Water Supply Protection. Vacuum breakers for washer-hose bedpans shall be located not less than five (5) feet (1,524 mm) above the floor. Hose connections in health care or laboratory areas shall be not less than six (6) feet (1,829 mm) above the floor.

603.4.18 Portable cleaning equipment, dental vacuum pumps, and chemical dispensers shall be protected from backflow by an airgap, an atmospheric vacuum breaker, a spill-resistant vacuum breaker, or a reduced pressure principle backflow preventer.

603.4.19 Combination stop-and-waste valves or cocks shall not be installed underground.

603.4.20 Pure Water Process Systems. The water supply to a pure water process system, such as dialysis water systems, semiconductor washing systems, and similar process piping systems, shall be protected from back-pressure and back-siphonage by a reduced-pressure principle backflow preventer.

603.4.20.1 Dialysis Water Systems. The individual connections of the dialysis related equipment to the dialysis pure water system shall not require additional backflow protection.

603.4.21 Plumbing Fixture Fittings. Plumbing fixture fittings with integral backflow protection shall comply with ASME A112.18.1/CSA B 125.1, Standard for Plumbing Supply Fittings.

603.4.22 Potable water supply to swimming pools, spas, and hot tubs shall be protected by an airgap or a reduced pressure principle backflow preventer in accordance with the following:

  1. The unit is equipped with a submerged fill line; or
  2. The potable water supply is directly connected to the unit circulation system.

604.0 Materials.

604.1 Pipe, tube, and fittings carrying water used in potable water systems intended to supply drinking water shall meet the requirements of NSF 61, Standard for Drinking Water System Components, as found in Table 14-1. Materials used in the water supply system, except valves and similar devices, shall be of a like material, except where otherwise approved by the Authority Having Jurisdiction.

Materials for building water piping and building supply piping shall be in accordance with the applicable standards referenced in Table 6-4.

Exceptions:

  1. [OSHPD 1, 2, 3 & 4] Use of CPVC is not permitted for applications under authority of the Office of Statewide Health Planning and Development.
  2. [OSHPD 1, 2, 3 & 4] Installation and use of PEX tubing shall be in accordance with manufacturer’s installation standards. PEX piping shall not be used for any application that would result in noncompliance with any provisions of the California Building Standards Code.
  3. [OSHPD 1, 2, 3 & 4] Use of PEX-AL-PEX piping is not permitted for applications under the authority of the Office of Statewide Health Planning and Development.
  4. [OSHPD 1, 2, 3 & 4] When PEX tubing is placed in soil and is used in potable water systems intended to supply drinking water to fixtures or appliances, the tubing or piping shall be sleeved with a material approved for potable water use in soil or other material that is impermeable to solvents or petroleum products.
  5. [OSHPD 1, 2, 3 & 4] PEX tubing shall meet the requirements of NSF P171 CL-R, ASTM F 876-08, Standard for Crosslinked Polyethylene (PEX) Tubing, or an equivalent or

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TABLE 6-4
MATERIALS FOR BUILDING SUPPLY AND WATER DISTRIBUTION PIPING AND FITTINGS
MATERIALBUILDING SUPPLY PIPE AND FITTINGSWATER DISTRIBUTION PIPE AND FITTINGSREFERENCED STANDARD(S) PIPEREFERENCED STANDARD(S) FITTINGS
1 For Building Supply or cold-water applications.
2[BSC, DSA-SS, DSA-SS/CC, and HCD] The use of PEX-AL-PEX in potable water supply systems is not adopted.
3[BSC, DSA-SS, DSA-SS/CC, HCD, AGR, and DPH] When PEX tubing is placed in soil and is used in potable water systems intended to supply drinking water to fixtures or appliances, the tubing or piping shall be sleeved with a materials approved for potable water use in soil or other material that is impermeable to solvents or petroleum products.
4[BSC, DSA-SS, DSA-SS/CC, HCD, AGR and DPH] PEX tubing shall meet the requirements of NSF P171 CL-R, ASTM F 876-08 or an equivalent or more stringent standard when used in continuously recirculating hot water systems where chlorinated water is supplied to the system and the PEX tubing is exposed to the hot water 100‰ of the time.
Asbestos-CementX1 ASTM C 296, AWWA C400 
BrassXXASTM B 43, ASTM B 135 
CopperXXASTM B 42, ASTM B 75, ASTM B 88, ASTM B 251, ASTM B 302, ASTM B 447ASTM B 16.15, ASME B16.18, ASME B16.22, ASME B16.26
CPVCXXASTM D 2846, ASTM F 441, ASTM F 442ASTM D 2846, ASTM F 437, ASTM F 438, ASTM F 439, ASTM F 1970
Ductile-IronXXAWWA C151ASME B16.4, AWWA C110, AWWA C153
Galvanized SteelXXASTM A 53 
Malleable IronXX ASME B16.3
PEX1 ASTM D 2239, ASTM D 2737, ASTM D 3035, AWWA C 901, CSA B137.1ASTM D 2609, ASTM D 2683, ASTM D 3261, ASTM F 1055, CSA B137.1
PE-AL-PEXXASTM F 1282, CSA B 137.9ASTM F 1282, ASTM F 1974, CSA B137.9
PEX3,4XXASTM F 876, ASTM F 877, CSA B137.5ASTM F 877, ASTM F 1807, ASTM F 1960, ASTM F 1961, ASTM F 2080, ASTM F 2159, CSA B137.5
PEX-AL-PEX2XXASTM F 1281, ASTM F 2262, CSA B137.10ASTM F 1281, ASTM F 1974, ASTM F 2434, CSA B137.10
PVCX1 ASTM D 1785, ASTM D 2241, AWWA C900ASTM D 2464, ASTM D 2466, ASTM D 2467, ASTM F 1970
Stainless SteelXXASTM A 269, ASTM A 312 

more stringent standard when used in continuously recirculating hot water systems where chlorinated water is supplied to the system and the PEX tubing is exposed to the hot water 100‰ of the time.

604.1.1 Local Authority to Approve CPVC Pipe Within Residential Buildings Under Specified Conditions.

[HCD 1 & HCD 2] The local responsible building official of any city, county, or city and county, shall authorize by permit the use of CPVC for hot and cold water distribution systems within the interior of residential buildings provided all of the following conditions are satisfied:

  1. Permit Conditions. Any building permit issued pursuant to Section 604.1.1 shall be conditioned on compliance with the mitigation measures set forth in this section.
  2. Approved Materials. Only CPVC plumbing material listed as an approved material and installed in accordance with this code may be used.
  3. Installation and Use. Any installation and use of CPVC plumbing material pursuant to this section shall comply with all applicable requirements of this code and Section 1.2 of Appendix I of this code, Installation Standard for CPVC Solvent Cemented Hot and Cold Water Distribution Systems, IAPMO IS 20-2006.
  4. Certification of Compliance. Prior to issuing a building permit pursuant to Section 604.1.1, the building official shall require as part of the permitting process that the contractor, or the appropriate plumbing subcontractors, provide written certification: (1) that is required in subdivision (e), and (2) that he or she will comply with the flushing procedures and worker safety measures set forth in Section 1.2 of Appendix I of this code, Installation Standard for CPVC Solvent Cemented Hot and Cold Water Distribution Systems, IAPMO IS 20-2006.
  5. Worker Safety. Any contractor applying for a building permit that includes the use of CPVC plumbing materials authorized pursuant to this section shall include in the permit application a signed written certification stating that:
    1. They are aware of the health and safety hazards associated with CPVC plumbing installations;142
    2. They have included in their Injury and Illness Prevention Plan the hazards associated with CPVC plumbing pipe installations; and
    3. The worker safety training elements of their Injury and Illness Prevention Plan meet the Department of Industrial Relation's guidelines.
  6. Findings of Compliance. The building official shall not give final permit approval of any CPVC plumbing materials installed pursuant to Section 604.1.1 unless he or she finds that the material has been installed in compliance with the requirements of this code and that the installer has complied with the requirements in Section 1.2.1 of Appendix 1 of this code, Installation Standards for CPVC Solvent Cemented Hot and Cold Water Distribution Systems, IAPMO IS 20-2006.
  7. Penalties. Any contractor or subcontractor found to have failed to comply with the flushing requirements of Section 1.2.1 of Appendix I of this code or the ventilation and glove requirements of Section 1.2.2 of Appendix I of this code, Installation Standards for CPVC Solvent Cemented Hot and Cold Water Distribution Systems, IAPMO IS 20-2006 shall be subject to the penalties in Health and Safety Code, Division 13, Part 1.5, Chapter 6 (Section 17995 et seq.). In addition, if during the conduct of any building inspection the building official finds that the ventilation and glove requirements of Section 1.2.2 of Appendix 1 of this code, “Special Requirements for CPVC Installation within Residential Buildings,” are being violated, such building officials shall cite the contractor or sub-contractor for that violation.

604.2 Copper tube for water piping shall have a weight of not less than Type L.

Exception: Type M copper tubing shall be permitted to be used for water piping when piping is above ground in, or on, a building or underground outside of structures.

604.3 Hard-drawn copper tubing for water supply and distribution in addition to the required incised marking, shall be marked in accordance with ASTM B 88 Seamless Copper Water Tube as referenced in Table 14-1. The colors shall be: Type K, green; Type L, blue; Type M, red.

604.4 Listed flexible copper water connectors shall be installed in readily accessible locations, unless otherwise listed.

604.5 Cast-iron fittings up to and including two (2) inches (51 mm) in size, when used in connection with potable water piping, shall be galvanized.

604.6 Malleable iron water fittings shall be galvanized.

604.7 Piping and tubing that has previously been used for any purpose other than for potable water systems shall not be used.

604.8 Approved plastic materials shall be permitted to be used in water service piping, provided that where metal water service piping is used for electrical grounding purposes, replacement piping therefore shall be of like materials.

Exception: Where a grounding system acceptable to the Authority Having Jurisdiction is installed, inspected, and approved, metallic pipe shall be permitted to be replaced with nonmetallic pipe. Plastic materials for water service piping outside underground shall have a blue insulated copper tracer wire or other approved conductor installed adjacent to the piping. Access shall be provided to the tracer wire or the tracer wire shall terminate above ground at each end of the nonmetallic piping. The tracer wire size shall be not less than 18 AWG and the insulation type shall be suitable for direct burial.

604.9 Solder shall conform to the requirements of Section 316.1.3.

604.10 Water pipe and fittings with a lead content which exceeds eight (8) percent shall be prohibited in piping systems used to convey potable water.

Note: On or after January 1, 2010, see Section 116875 of the Health and Safety Code for the lead content of pipes, pipe or plumbing fittings, or fixtures intended to convey or dispense water for human consumption.

604.11 PEX. Cross-linked polyethylene (PEX) tubing conforming to ASTM F 877, Standard for Crosslinked Polyethylene (PEX) Plastic Hot-and Cold-Water Distribution Systems, shall be marked with the appropriate standard designation(s) for the fittings specified for use with the tubing. Such marking shall not be required for PEX tubing conforming to only ASTM F 876, Crosslinked Polyethylene (PEX) Tubing. PEX tubing shall be installed in compliance with the provisions of this section. [OSHPD 1, 2, 3 & 4] Installation and use of PEX tubing shall be in accordance with manufacturer’s standards. PEX piping shall not be used for any application that would result in noncompliance with any provisions of the California Building Standards Code.

604.11.1 PEX Fittings. Fittings used with PEX tubing shall be manufactured to and marked in accordance with the standards for the fittings referenced in Table 14-1.[OSHPD 1, 2, 3 & 4] Installation and use of PEX tubing shall be in accordance with manufacturer’s standards. PEX piping shall not be used for any application that would result in noncompliance with any provisions of the California Building Standards Code.

604.11.2 Water Heater Connections. PEX tubing shall not be installed within the first eighteen (18) inches (457 mm) of piping connected to a water heater.

604.12 Flexible Corrugated Connectors. Flexible corrugated connectors or stainless steel shall be limited to the following connector lengths:

Water Heater Connectors- twenty-four (24) inches (610 mm).

Fixture Connectors - thirty (30) inches (762 mm).

Washing Machine Connectors - seventy-two (72) inches (1,829 mm).

Dishwasher and Icemaker Connectors - one-hundred and twenty (120) inches (3,048 mm).

604.13 PEX-AL-PEX and PE-AL-PE. Crosslinked polyethylene-aluminium-crosslinked polyethylene (PEX-AL-PEX) and polyethylene-aluminium-polyethylene (PE-AL-PE)

143

composite pipe shall be marked with the applicable standard referenced in Table 14-1 for which the piping has been listed or approved. PEX-AL-PEX and PE-AL-PE piping shall be installed in compliance with the provisions of this section.

[HCD 1 & HCD 2, BSC] PEX-AL-PEX is not adopted for use in potable water supply and distribution systems.

Exception: [OSHPD 1, 2, 3 & 4] Use of PEX-AL-PEX piping is not permitted for applications under the authority of the Office of Statewide Health Planning and Development.

604.13.1 PEX-AL-PEX and PE-AL-PE. Fittings used with PEX-AL-PEX and PE-AL-PE piping shall be manufactured to and marked in accordance with the standard for the fittings referenced in Table 14-1.

[HCD 1 & HCD 2, BSC] PEX-AL-PEX is not adopted for use in potable water supply and distribution systems.

Exception: [OSHPD 1, 2, 3 & 4] Use of PEX-AL-PEX piping is not permitted for applications under the authority of the Office of Statewide Health Planning and Development.

604.13.2 Water Heater Connections. PEX-AL-PEX or PE-AL-PE tubing shall not be installed within the first eighteen (18) inches (457 mm) of piping connected to a water heater.

[HCD 1 & HCD 2, BSC] PEX-AL-PEX is not adopted for use in potable water supply and distribution systems.

Exception: [OSHPD 1,2,3 & 4] Use of PEX-AL-PEX piping is not permitted for applications under the authority of the Office of Statewide Health Planning and Development.

604.14 Water Heater Connectors. Flexible metallic water heater connectors or reinforced flexible water heater connectors connecting water heating to the piping system shall be in compliance with the applicable standards referenced in Table 14-1.

605.0 Valves.

605.1 Valves up to and including two (2) inches (51 mm) in size shall be brass or other approved material. Sizes exceeding two (2) inches (51 mm) shall be permitted to have cast-iron or brass bodies. Each gate or ball valve shall be a fullway type with working parts of non-corrosive material. Valves carrying water used in potable water systems intended to supply drinking water shall meet the requirements of NSF 61, Standard for Drinking Water System Components, as referenced in Table 14-1.

605.2 A fullway valve controlling outlets shall be installed on the discharge side of each water meter and on each unmetered water supply. Water piping supplying more than one (1) building on any one (1) premises shall be equipped with a separate fullway valve to each building, so arranged that the water supply can be turned on or off to any individual or separate building provided; however, that supply piping to a single-family residence and building accessory thereto shall be permitted to be controlled on one (1) valve. Such shutoff valves shall be accessible at all times. A fullway valve shall be installed on the discharge piping from water supply tanks at or near the tank. A fullway valve shall be installed on the cold water supply pipe to each water heater at or near the water heater.

605.3 In multidwelling units, one (1) or more shutoff valves shall be provided in each dwelling unit so that the water supply to any plumbing fixture or group of fixtures in that dwelling unit can be shut off without stopping water supply to fixtures in other dwelling units. These valves shall be accessible in the dwelling unit that they control.

605.4 Valves used to control two (2) or more openings shall be fullway gate valves, ball valves, or other approved valves designed and approved for the service intended.

605.5 A control valve shall be installed immediately ahead of each water-supplied appliance and immediately ahead of each slip joint or appliance supply.

Parallel water distribution systems shall provide a control valve either immediately ahead of each fixture being supplied or installed at the manifold and shall be identifies with the fixture being supplied.

605.6 Required shutoff or control valves shall be accessible.

605.7 A single control valve shall be installed on a water supply line ahead of any automatic metering valve that supplies a battery of fixtures.

605.8 [OSHPD 1, 2, 3 & 4] Each riser or branch shall be provided with an accessible sectionalizing valve in hot-and cold-water systems to permit servicing or replacement of piping or equipment. Stop valves shall be provided at each fixture.

606.0 Joints and Connections.

606.1 Types of Joints.

606.1.1 Flared Joints. Flared joints for soft copper water tubing shall be made with fittings meeting approved standards. The tubing shall be reamed to the full bore, resized to round, and expanded with a proper flaring tool.

606.1.2 Mechanical Joints. Mechanical joints for cast-iron water pipe shall conform to nationally recognized standards.

606.1.3 Mechanically Formed Tee Fittings. Mechanically extracted collars shall be formed in a continuous operation consisting of drilling a pilot hole and drawing out the tube surface to form a collar having a height not less than three (3) times the thickness of the branch tube wall.

The branch tube shall be notched to conform with the inner curve of the run tube and shall have two (2) dimple/depth stops to ensure that penetration of the branch tube into the collar is of sufficient depth for brazing and that the branch tube does not obstruct the flow in the main line tube. Dimple/depth stops shall be in line with the run of the tube. The second dimple shall be one quarter ¼ inch (6.4 mm) above the first and shall serve as a visual point of inspection.

Joints shall be brazed in accordance with Section 316.1.7. Soldered joints shall not be allowed.

144

606.2 Use of Joints.

606.2.1 Copper Water Tube. Joints in copper tubing shall be made by the appropriate use of approved fittings properly soldered or brazed together as provided in Section 316.1.3. or 316.1.7. or by means of approved flared or compression fittings in Sections 606.1.1 or 316.1.5. Solder and soldering flux shall conform to the requirements of Section 316.1.3. Mechanically formed tee fittings shall be made by brazing only and shall conform to the requirements of Sections 316.1.7 and 606.1.3.

606.2.2 Plastic Fittings. Female PVC screwed fittings for water piping shall be used with plastic male fittings and plastic male threads only.

606.2.3 Slip Joints. In water piping, slip joints shall be permitted to be used only on the exposed fixture supply may be used only on the exposed fixture supply.

607.0 Gravity Supply Tanks.

Gravity tanks for potable water shall be tightly covered, and have not less than a sixteen (16) square inch (10,323 mm2) overflow screened with copper screen having not less than fourteen (14) nor exceeding eighteen (18) openings per linear inch (25.4 mm).

608.0 Water Pressure, Pressure Regulators, Pressure Relief Valves, and Vacuum Relief Valves.

608.1 Inadequate Water Pressure. Whenever the water pressure in the main or other source of supply will not provide a residual water pressure of not less than fifteen (15) pounds per square inch (103 kPa), after allowing for friction and other pressure losses, a tank and a pump or other means that will provide said fifteen (15) pound (103 kPa) pressure shall be installed. Whenever fixtures and/or fixture fittings are installed that require residual pressure exceeding fifteen (15) pounds per square inch (103 kPa), that minimum residual pressure shall be provided.

608.2 Excessive Water Pressure. Where static water pressure in the water supply piping is exceeding eighty (80) pounds per square inch (552 kPa), an approved-type pressure regulator preceded by an adequate strainer shall be installed and the static pressure reduced to eighty (80) pounds per square inch (552 kPa) or less. Pressure regulator(s) equal to or exceeding one and one-half (1½) inches (38 mm) shall not require a strainer. Such regulator(s) shall control the pressure to all water outlets in the building unless otherwise approved by the Authority Having Jurisdiction. Each such regulator and strainer shall be accessibly located above ground or in a vault equipped with a properly sized and sloped bore-sighted drain to daylight, shall be protected from freezing, and shall have the strainer readily accessible for cleaning without removing the regulator or strainer body or disconnecting the supply piping. Pipe size determinations shall be based on 80 percent of the reduced pressure when using Table 6-6. An approved expansion tank shall be installed in the cold water distribution piping downstream of each such regulator to prevent excessive pressure from developing due to thermal expansion and maintain the pressure setting of the regulator. The expansion tank shall be properly sized and installed in accordance with the manufacturer’s instructions and listing. Systems designed by registered engineers shall be permitted to use approved pressure relief valves in lieu of expansion tanks provided such relief valve have a maximum pressure relief setting of one hundred (100) pounds per square inch (689 kPa) or less.

608.3 Any water system provided with a check valve, backflow preventer, or any other normally closed device that prevents dissipation of building pressure back into the water main shall be provided with an approved, listed, and adequately sized expansion tank or other approved device having a similar function to control thermal expansion. Such expansion tank or other approved device shall be installed on the building side of the check valve, backflow preventer, or other device and shall be sized and installed in accordance with the manufacturer’s recommendation.

Any water system containing storage water heating equipment shall be provided with an approved, listed, adequately sized combination pressure and temperature relief valve, except for listed nonstorage instantaneous heaters having an inside diameter of not more than three (3) inches (80 mm). Each such approved combination temperature and pressure relief valve shall be installed on the water-heating device in an approved location based on its listing requirements and the manufacture′s instruction. Each such combination temperature and pressure relief valve shall be provided with a drain as required in Section 608.5.

608.4 Each pressure relief valve shall be an approved automatic type with drain, and each such relief valve shall be set at a pressure of not more than one-hundred and fifty (150) pounds per square inch (1,034 kPa). No shutoff valve shall be installed between the relief valve and the system or in the drain line.

608.5 Relief valves located inside a building shall be provided with a drain not smaller than the relief valve outlet of galvanized steel, hard-drawn copper piping and fittings, CPVC or listed relief valve drain tube with fittings that will not reduce the internal bore of the pipe or tubing (straight lengths as opposed to coils) and shall extend from the valve to the outside of the building, with the end of the pipe not more than two (2) feet (610 mm) nor less than six (6) inches (152 mm) above ground or the flood level of the area receiving the discharge and pointing downward. Such drains shall be permitted to terminate at other approved locations. Relief valve drains shall not terminate in a building’s crawl space. No part of such drain pipe shall be trapped or subject to freezing. The terminal end of the drain pipe shall not be threaded.

608.6 Any water-heating device connected to a separate storage tank and having valves between said heater and tank shall be provided with an approved water pressure relief valve.

608.7 Vacuum Relief Valves. Where a hot-water storage tank or an indirect water heater is located at an elevation above the fixture outlets in the hot-water system, a vacuum relief valve shall be installed on the storage tank or heater.

145

609.0 Installation, Testing, Unions, and Location.

609.1 Installation. Water piping shall be adequately supported in accordance with Section 314.0. Burred ends shall be reamed to the full bore of the pipe or tube. Changes in direction shall be made by the appropriate use of fittings, except that changes in direction in copper tubing may be made with bends, provided that such bends are made with bending equipment that does not deform or create a loss in the cross-sectional area of the tubing. Changes in direction are allowed with flexible pipe and tubing without fittings in accordance with the manufacturer's installation instructions. Provisions shall be made for expansion in hot-water piping. Piping, equipment, appurtenances, and devices shall be installed in a workmanlike manner in conformity with the provisions and intent of the code. Water service yard piping shall be not less than twelve (12) inches (305 mm) below the average local frost depth. The cover shall be not less than twelve (12) inches (305 mm) below finish grade.

609.2 Water pipes shall not be run or laid in the same trench as building sewer or drainage piping constructed of clay or materials that are not approved for use within a building unless both of the following conditions are met:

609.2.1 The bottom of the water pipe, at all points, shall be not less than twelve (12) inches (305 mm) above the top of the sewer or drain line.

609.2.2 The water pipe shall be placed on a solid shelf excavated at one (1) side of the common trench with a clear horizontal distance of not less than twelve (12) inches (305 mm) from the sewer or drain line.

Water pipes crossing sewer or drainage piping constructed of clay or materials that are not approved for use within a building shall be laid not less than twelve (12) inches (305 mm) above the sewer or drain pipe.

609.3 Water piping installed within a building and in or under a concrete floor slab resting on the ground shall be installed in accordance with the following requirements:

609.3.1 Ferrous piping shall have a protective coating of an approved type, machine applied and conforming to recognized standards. Field wrapping shall provide equivalent protection and shall be restricted to those short sections and fittings necessarily stripped for threading. Zinc coating (galvanizing) shall not be deemed adequate protection for piping or fittings. Approved nonferrous piping shall not be required to be wrapped.

609.3.2 Copper tubing shall be installed without joints where possible. where joints are permitted, they shall be brazed, and fittings shall be wrought copper.

Note: For the purpose of this section, “within the building” shall mean within the fixed limits of the building foundation.

609.4 Testing. Upon completion of a section or of the entire hot and cold water supply system, it shall be tested and proved tight under a water pressure not less than the working pressure under which it is to be used. The water used for tests shall be obtained from a potable source of supply. Except for plastic piping, a fifty (50) lb./in.2 (345 kPa) air pressure shall be permitted to be substituted for the water test. In either method of test, the piping shall withstand the test without leaking for a period of not less than fifteen (15) minutes.

609.5 Unions. Unions shall be installed in the water supply piping not more than twelve (12) inches (305 mm) of regulating equipment, water heating, conditioning tanks, and similar equipment that requires service by removal or replacement in a manner that will facilitate its ready removal.

609.6 Location. Except as provided in Section 609.7, no building supply shall be located in any lot other than the lot that is the site of the building or structure served by such building supply.

609.7 Nothing contained in this code shall be construed to prohibit the use of all or part of an abutting lot to:

609.7.1 Provide access to connect a building supply to an available public water service when proper cause and legal easement not in violation of other requirements have been first established to the satisfaction of the Authority Having Jurisdiction.

609.7.2 Provide additional space for a building supply when proper cause, transfer of ownership, or change of boundary not in violation of other requirements have been first established to the satisfaction of the Authority Having Jurisdiction. The instrument recording such action shall constitute an agreement with the Authority Having Jurisdiction, which shall clearly state and show that the areas so joined or used shall be maintained as a unit during the time they are so used. Such an agreement shall be recorded in the office of the County Recorder as a part of the conditions of ownership of said properties, and shall be binding on heirs, successors, and assigns to such properties. A copy of the instrument recording such proceedings shall be filed with the Authority Having Jurisdiction.

609.8 Low-Pressure Cutoff Required on Booster Pumps for Water Distribution Systems. When a booster pump (excluding a fire pump) is connected to a water service or underground water pipe, a low-pressure cutoff switch on the inlet side of the pump shall be installed not more than five (5) feet (1,524 mm) of the inlet. The cutoff switch shall be set for not less than ten (10) psi (69 kPa). A pressure gauge shall be installed between the shutoff valve and the pump.

609.9 Disinfection of Potable Water System. New or repaired potable water systems shall be disinfected prior to use whenever required by the Authority Having Jurisdiction. [OSHPD 1, 2, 3 & 4] Prior to utilization of newly constructed or altered potable water piping systems, all affected potable water piping shall be disinfected using procedures prescribed in California Plumbing Code Sections 609.9.1 through 609.9.4. The method to be followed shall be that prescribed by the Health Authority or, in case no method is prescribed by it, the following:

146

609.9.1 The pipe system shall be flushed with clean, potable water until only potable water appears at the points of outlet.

609.9.2 The system or parts thereof shall be filled with a water-chlorine solution containing not less than fifty (50) parts per million of chlorine, and the system or part thereof shall be valved-off and allowed to stand for twenty-four (24) hours; or, the system or part thereof shall be filled with a water-chlorine solution containing not less than two-hundred (200) parts per million of chlorine and allowed to stand for three (3) hours.

609.9.3 Following the allowed standing time, the system shall be flushed with clean, potable water until the chlorine residual in the water coming from the system does not exceed the chlorine residual in the flushing water.

609.9.4 The procedure shall be repeated if it is shown by bacteriological examination made by an approved agency that contamination persists in the system.

609.10 Water Hammer. [Not adopted by HCD] Building water supply systems where quick-acting valves are installed shall be provided with water hammer arrester(s) to absorb high pressures resulting from the quick closing of these valves. Water hammer arrestors shall be approved mechanical devices in accordance with the applicable standard(s) referenced in Table 14-1 and shall be installed as close as possible to quick-acting valves.

609.10.1 Mechanical Devices. When listed mechanical devices are used, the manufacturer's specifications as to location and method of installation shall be followed.

609.11 [OSHPD 1, 2 & 4] Refer to Title 24, Part 2 of the California Building Code for seismic anchorage and bracing requirements and accommodations for building displacements.

610.0 Size of Potable Water Piping.

610.1 The size of each water meter and each portable water supply pipe from the meter or other source of supply to the fixture supply branches, risers, fixtures, connections, outlets, or other uses shall be based on the total demand and shall be determined according to the methods and procedures outlined in this section. Water piping systems shall be designed to ensure that the maximum velocities allowed by the code and the applicable standard are not exceeded.

610.2 Whenever a water filter, water softener, backflow prevention device or similar device is installed in any water supply line, the pressure loss through such devices shall be included in the pressure loss calculations of the system, and the water supply pipe and meter shall be adequately sized to provide for any such pressure loss.

No water filter, water softener, backflow prevention device, or similar device regulated by this code shall be installed in any potable water supply piping when the installation of such device produces an excessive pressure drop in any such water supply piping. In the absence of specific pressure drop information, the diameter of the inlet or outlet of any such device or its connecting piping shall be not less than the diameter of such water distribution piping to the fixtures served by the device.

Such devices shall be of a type approved by the Authority Having Jurisdiction and shall be tested for flow rating and pressure loss by an approved laboratory or recognized testing agency to standards consistent with the intent of this chapter.

610.3 The quantity of water required to be supplied to every plumbing fixture shall be represented by fixture units, as shown in Table 6-5. Equivalent fixture values shown in Table 6-5 include both hot and cold water demand.

610.4 Systems within the range of Table 6-6 shall be permitted to be sized from that table or by the method set forth in Section 610.5.

Listed parallel water distribution systems shall be installed in accordance with their listing, but at no time shall any portion of the system exceed the maximum velocities allowed by the code.

610.5 Except as provided in Section 610.4, the size of each water piping system shall be determined in accordance with the procedure set forth in Appendix A. For alternate methods of sizing water supply systems, see Appendix L.

610.6 Except where the type of pipe used and the water characteristics are such that no decrease in capacity due to length of service (age of system) is expected, friction-loss data shall be obtained from the “Fairly Rough” or “Rough” charts in Appendix A of this code. Friction or pressure losses in water meter, valve, and fittings shall be obtained from the same sources. Pressure losses through water-treating equipment, backflow prevention devices, or other flow-restricting devices shall be computed as required by Section 610.2.

610.7 On any proposed water piping installation sized using Table 6-6, the following conditions shall be determined:

  1. Total number of fixture units as determined from Table 6-5, Equivalent Fixture Units, for the fixtures to be installed.
  2. Developed length of supply pipe from meter to most remote outlet.
  3. Difference in elevation between the meter or other source of supply and the highest fixture or outlet.
  4. Pressure in the street main or other source of supply at the locality where the installation is to be made.
  5. In localities where there is a fluctuation of pressure in the main throughout the day, the water piping system shall be designed on the basis of the minimum pressure available.

610.8 Size of Meter and Building Supply Pipe Using Table 6-6. The size of the meter and the building supply pipe shall be determined as follows:

  1. Determine the available pressure at the water or other source of supply.
  2. Subtract one-half (½) pound per square inch pressure (3.4 kPa) for each foot (305 mm) of difference in elevation between such source of supply and the highest water supply outlet in the building or on the premises.147
  3. Use the “pressure range” group within which this pressure will fall using Table 6-6.
  4. Select the “length” column that is equal to or longer than the required length.
  5. Follow down the column to a fixture unit value equal to or exceeding the total number of fixture units required by the installation.
  6. Having located the proper fixture unit value for the required length, sizes of meter and building supply pipe as found in the two (2) left-hand columns shall be applied.

No building supply pipe shall be less than three-quarters (¾) of an inch (20 mm) in diameter.

610.9 Size of Branches. When Table 6-6 is used, the minimum size of each branch shall be determined by the number of fixture units to be served by that branch, the total developed length of the system, and the meter and street service size as per Section 610.8. No branch piping is required to be larger in size than that required by Table 6-6 for the building supply pipe.

610.10 Sizing for Flushometer Valves. When using Table 6-6 to size water supply systems serving flushometer valves, the number of flushometer fixture units assigned to every section of pipe, whether branch or main, shall be determined by the number and category of flushometer valves served by that section of pipe, in accordance with Table 6-7. Piping supplying a flushometer valve shall be not less in size than the valve inlet.

When using Table 6-7 to size water piping, care must be exercised to assign flushometer fixture units based on the number and category of fixtures served.

SIZING METHOD EXAMPLE USING TABLE 6-7 PUBLIC USE FIXTURES

SIZING METHOD EXAMPLE USING TABLE 6-7 PUBLIC USE FIXTURES

In the example below, fixture units assigned to each section of pipe are computed as follows: Note: Each capital letter refers to the section of pipe above it, unless otherwise shown.

A: 1 WC = 40 F.U.

B: 2 WC = 70 F.U.

C: 2 WC (70) + 1 UR (20) = 90 F.U.

D: 2 WC (70) + 2 UR (35) = 105 F.U.

E: 2 WC (70) + 2 UR (35) + 1 LAV (1) = 106 F.U.

F: 2 WC (70) + 2 UR (35) + 2 LAV (2) = 107 F.U.

G: 1 LAV = 1 F.U.

H: 2 LAV = 2 F.U.

I: 2 LAV (2) + 1 UR (20) = 22 F.U.

J: 2 LAV (2) + 2 UR (35) = 37 F.U.

K: 2 LAV (2) + 2 UR (35) + 1 WC (40) = 77 F.U.

L: 2 LAV (2) + 2 UR (35) + 2 WC (70) = 107 F.U.

M: 4 WC (105) + 4 UR (53) + 4 LAV (4) = 162 F.U.

N: 1 WC = 40 F.U.

O: 1 WC (40) + 1 UR (20) = 60 F.U.

P: 1 WC (40) + 1 UR (20) + 1 LAV (1) = 61 F.U.

Q: 2 WC (70) + 1 UR (20) + 1 LAV (1) = 91 F.U.

R: 2 WC (70) + 2 UR (35) + 1 LAV (1) = 106 F.U.

S: 2 WC (70) + 2 UR (35) + 2 LAV (2) = 107 F.U.

T: 6 WC (125) + 6 UR (63) + 6 LAV (6) = 194 F.U.

610.11 Sizing Systems for Flushometer Tanks. The size of branches and mains serving flushometer tanks shall be consistent with the sizing procedures for flush tank water closets.

610.12 Sizing for Velocity. Water piping systems shall not exceed the maximum velocities listed in this section or Appendix A.

610.12.1 Copper Tube Systems. Maximum velocities in copper and copper alloy tube and fitting systems shall not exceed eight (8) feet per second (fps) (2.4 mps) in cold water and five (5) fps in hot water (1.5 mps).

610.12.2 Tubing Systems Using Copper Alloy Fittings. Maximum velocities through copper alloy fittings in tubing other than copper shall not exceed eight (8) feet per second (fps) (2.4 mps) in cold water and five (5) fps in hot water (1.5 mps).

610.13 Exceptions. The provisions of this section relative to size of water piping shall not apply to the following:

  1. Water supply piping systems designed in accordance with recognized engineering procedures acceptable to the Authority Having Jurisdiction.
  2. Alteration of or minor additions to existing installations, provided the Authority Having Jurisdiction finds that there will be an adequate supply of water to operate all fixtures.
  3. Replacement of existing fixtures or appliances.
  4. Piping that is part of fixture equipment.
  5. Unusual conditions where, in the judgment of the Authority Having Jurisdiction, an adequate supply of water is provided to operate fixtures and equipment.
  6. Non-potable waterlines as defined in Sections 601.2.2 and 601.2.4.

148

TABLE 6-5
WATER SUPPLY FIXTURE UNITS (WSFU) AND MINIMUM FIXTURE BRANCH PIPE SIZES3
Inch
½
¾
1
mm
15
20
25
 
APPLIANCES, APPURTENANCES OR FIXTURES2MINIMUM FIXTURE BRANCH PIPE SIZE1,4PRIVATEPUBLICASSEMBLY6
Notes:
1Size of the cold branch pipe, or both the hot and cold branch pipes.
2Appliances, Appurtenances or Fixtures not included in this Table may be sized by reference to fixtures having a similar flow rate and frequency of use.
3The listed fixture unit values represent their load on their cold water service. The separate cold water and hot water fixture unit value for fixtures having both hot and cold water connections may each be taken as three-quarter (¾) of the listed total value of the fixture.
4The listed minimum supply branch pipe sizes for individual fixtures are the nominal (I.D.) pipe size.
5For fixtures or supply connections likely to impose continuous flow demands, determine the required flow in gallons per minute (GPM), and add it separately to the demand (in GPM) for the distribution system or portions thereof.
6Assembly [Public Use (See Table 4-1)].
7When sizing flushometer systems, see Section 610.10.
8Reduced fixture unit loading for additional hose bibbs is to be used only when sizing total building demand and for pipe sizing when more than one (1) hose bibb is supplied by a segment of water-distributing pipe. The fixture branch to each hose bibb is supplied by a segment of water-distributing pipe. The fixture branch to each hose bibb shall be sized on the basis of two and one-half (2.5) fixture units.
9[HCD 2] For water supply fixture unit values related to mobilehome parks in all parts of the State of California, see California Code of Regulations, Title 25, Division 1, Chapter 2, Article 5, Section 1278. For water supply fixture unit values related to special occupancy parks in all parts of the State of California, see California Code of Regulations, Title 25, Division 1, Chapter 2.2, Article 5, Section 2278.
Bathtub or Combination Bath/Shower (fill)½4.04.0B
¾" Bathtub Fill Valve¾10.010.0 
Bidet½1.0  
Clothes washer½4.04.0 
Dental Unit, cuspidor½ 1.0 
Dishwasher, domestic½1.51.5 
Drinking Fountain or Water Cooler½0.50.50.75
Hose Bibb½2.52.5 
Hose Bibb, each additional8½1.01.0 
Lavatory½1.01.01.0
Lawn Sprinkler, each head5 1.01.0 
Mobile Home, each (minimum)9 12.0  
Sinks    
Bar½1.02.0 
Clinic Faucet½ 3.0 
Clinic Flushometer Valve with or without faucet1 8.0 
Kitchen, domestic½1.51.5 
Laundry½1.51.5 
Service or Mop Basin½1.53.0 
Washup, each set of faucets½ 2.0 
Shower, per head½2.02.0 
Urinal, 1.0 GPF Flushometer Valve¾See Footnote7 
Urinal, greater than 1.0 GPF Flushometer Valve¾See Footnote7 
Urinal, flush tank½2.02.03.0
Wash Fountain, circular spray¾ 4.0 
Water Closet, 1.6 GPF Gravity Tank½2.52.53.5
Water Closet, 1.6 GPF Flushometer Tank½2.52.53.5
Water Closet, 1.6 GPF Flushometer Valve1See Footnote7 
Water Closet, greater than 1.6 GPF Gravity Tank½3.05.57.0
Water Closet, greater than 1.6 GPF Flushometer Valve1See Footnote7 

149

TABLE 6-6
FIXTURE UNIT TABLE FOR DETERMINING WATER PIPE AND METER SIZES
 Inch
½
3/4
1


2
mm
15
20
25
32
40
50
65
METER AND STREET SERVICE, INCHESBUILDING SUPPLY AND BRANCHES, INCHESMAXIMUM ALLOWABLE LENGTH IN FEET (meters)
40 (12)60 (18)80 (24)100 (30)150 (46)200 (61)250 (76)300 (91)400 (122)500 (152)600 (183)700 (213)800 (244)900 (274)1000 (305)
**Available static pressure after head loss.
***Building supply, not less than three-quarter (¾) inch (20 mm) nominal size.
Pressure Range - 30 to 45 psi (207 to 310 kPa)**
¾½***654321110000000
¾¾1616141296554432221
¾1292523211715131210866666
113631272520171513121086666
¾363331282423211917161312121111
1544742383228252319171412121111
786857483832282521181512121111
1858479655648433832282622212020
150124105917057494536312623212020
21511291291108064534638322723212020
12858585858585828066615752494643
2220205190176155138127120104857061575451
22370327292265217185164147124967061575451
2445418390370330300280265240220198175158143133
Pressure Range - 46 to 60 psi (317 to 414 kPa)**
¾½***776543221110000
¾¾202019171411986544333
¾1393936332823211917141210988
11393939363025232018151210988
¾393939393939343227252219191716
1787876675244393630272420191716
787878786652443933292420191716
1858585858585806755494137343230
151151151151128105907862524238353230
2151151151151150117988467554238353230
12858585858585858585858585858380
237037034031827224022019817015013512311010294
2237037037037036831828025020516514212311010294
2654640610580535500470440400365335315285267250
Pressure Range - Over 60 psi (414 kPa)**
¾½***777654332111110
¾¾20202020171311108766544
¾1393939393530272421171413121211
11393939393832292622181413121211
¾393939393939393934282625232221
1787878787462534739312625232221
787878787874655443342625232221
1858585858585858581645148464340
15115115115115115113011388735151464340
215115115115115115114212298826451464340
12858585858585858585858585858585
2370370370370360335305282244212187172153141129
22370370370370370370370340288245204172153141129
2654654654654654650610570510460430404380356329
150
  1. The size and material of irrigation water piping installed outside of any building or structure and separated from the potable water supply by means of an approved airgap or backflow prevention device is not regulated by this code. The potable water piping system supplying each such irrigation system shall be adequately sized as required elsewhere in this chapter to deliver the full connected demand of both the domestic use and the irrigation systems.
TABLE 6-7
FLUSHOMETER FIXTURE UNITS FOR WATER SIZING USING TABLE 6-5
FIXTURE CATEGORY: WATER CLOSET W/ FLUSHOMETER VALVES
NUMBER OF FLUSHOMETER VALVESINDIVIDUAL FIXTURE UNITS ASSIGNED IN DECREASING VALUEFIXTURE UNITS ASSIGNED FOR WATER CLOSETS AND SIMILAR 10-UNIT FIXTURES IN ACCUMULATIVE VALUES
14040
23070
32090
415105
5 or more10 each115 plus 10 for each additional fixture in excess of 5
FIXTURE CATEGORY: URINALS W/ FLUSHOMETER VALVES
NUMBER OF FLUSHOMETER VALVESINDIVIDUAL FIXTURE UNITS ASSIGNED IN DECREASING VALUEFIXTURE UNITS ASSIGNED FOR WATER CLOSETS AND SIMILAR 5-UNIT FIXTURES IN ACCUMULATIVE VALUES
12020
21535
31045
4853
5 or more5 each58 plus 5 for each additional fixture in excess of 5
TABLE 6-8
SIZING OF RESIDENTIAL WATER SOFTENERS
REQUIRED SIZE OF SOFTENER CONNECTIONNUMBER OF BATHROOM GROUPS SERVED1
1Installation of a kitchen sink and dishwasher, laundry tray, and automatic clothes washer permitted without additional size increase.
2An additional water closet and lavatory permitted.
3Over four (4) bathroom groups, the softener size shall be engineered for the specific installation.
See also Appendix A, Recommended Rules for Sizing the Water Supply System, and Appendix L, Alternate Plumbing Systems, for alternate methods of sizing water supply systems.
¾ in.up to 22
1 in.up to 43

611.0 Drinking Water Treatment Units.

611.1 Compliance with Standard. Drinking water treatment units shall meet the requirements of the appropriate standard referenced in Table 14-1.

611.2 Airgap Discharge. Discharge from drinking water treatment units shall enter the drainage system through an airgap or an airgap device that meets the requirements of the appropriate standards referenced in Table 14-1.

611.3 Connection Tubing. The tubing to and from drinking water treatment units shall be of a size and material as recommended by the manufacturer. The tubing shall comply with the requirements of the appropriate standards referenced in Table 14-1.

611.4 Sizing of Residential Softeners. Residential-use water softeners shall be sized per Table 6-8.

612.0 [OSHPD 1, 2, 3 & 4] Domestic Hot-Water Distribution Systems for Health Facilities and Clinics.

612.1 The domestic water-heating equipment and distribution systems shall supply water at the temperature and amounts shown in Table 6-9. Where the system is designed by a mechanical engineer, appropriate diversity factors may be utilized.

ABLE 6-9
[OSHPD 1, 2, 3 & 4] HOT WATER USE
 CLINICALDIETARY1LAUNDRY2
1 Rinse water temperature at automatic dishwashing equipment and pot sinks shall be 180°F(82°C).
Exception: The rinse water supply to pot rinse sinks may be deleted if a method of chemical disinfection using a three-compartment sink is proposed.
2 The required temperature of 160°F (71°C) in the laundry is that measure in the washing machine and shall be supplied so that the temperature may be maintained over the entire wash and rinse period.
Exception: A lower water temperature of 140°F (60°C) may be utilized, provided linens are subsequently passed through a tumbler dryer at 180°F (82°C) or a flatwork ironer at 300°F (149°C).
Liter/Hour/Bed11.97.27.6
Gallons/Hour/Bed322
Temperature °C41-49.049.071.0
Temperature °F105-120.0120.0160.0

612.2 At least two pieces of hot-water-heating equipment shall be provided to supply hot water for dishwashing and minimum patient services such as handwashing and bathing. Booster heaters for 125°F to 180°F (52°C to 82°C) water are acceptable as a second piece of equipment for dishwashing. Where storage tanks are separate from the water heater, at least two independent storage tanks shall be provided.

612.3 Instantaneous heaters are permitted for supplying hot water to handwashing and bathing fixtures if a continuous mechanical recirculation system is also provided.

612.4 Water storage tanks shall be fabricated of corrosion-resistant materials or lined with corrosion-resistant materials.

612.5 Temperature control valves shall be provided to automatically regulate the temperature of hot water delivered to plumbing fixtures used by patients to a range of 105°F (41°C) minimum to 120°F (49°C) maximum. High temperature alarm set at 125°F (52°C) shall be provided. The audible/visual device for the high temperature alarm shall annunciate at a continuously occupied location.

612.6 Hot-water distribution system serving patient care areas shall be under constant mechanical recirculation to provide

151

continuous hot water at each hot water outlet. Non-recirculated fixture branch piping shall not exceed 25 feet (7.62 meters) in length. Dead-end piping (risers with no flow, branches with no fixture) shall not be installed. In renovation projects, dead-end piping shall be removed in the area of renovation. Empty risers, mains, and branches installed for future use shall be permitted.

612.7 At fixtures where water exceeding 125°F (52°C) is accessible to patients or personnel, warning signs in letters at least 2 inches (51 mm) high shall be posted above the fixtures.

612.8 Sectionalizing valves shall be provided as required by Section 605.8.

613.0 Dialysis Water-Distribution Systems.

613.1 [OSHPD 1, 2, 3 & 4] Dialysis water feedlines shall be PVC (polyvinyl chloride), glass, stainless steel, or PVDF (polyvinylidene fluoride) and sized to provide a minimum velocity of 1.5 feet per second (0.46 m/s). The piping shall be a singleloop system with or without recirculation. Branches to dialysis machines shall be ¼ inch (6.4 mm) inside dimension and take off from the bottom of the main feedline.

613.2 All piping for multistation or central dialysis units shall be rigid where possible. All piping and tubing shall be in a neat arrangement. The placement of piping or tubing on the floor is not permitted.

613.3 All valves shall be located in accessible locations.

613.4 Piping and valves shall be identified according to their function.

613.5 A means of preventing backwashing or flushing of the system when one or more stations are in operation shall be provided.

613.6 A continuous audible alarm shall sound at the nurses' station and remote equipment rooms when the minimum velocity is not maintained, or if backwashing or flushing is attempted while one or more stations are in operation.

613.7 Water used for dialysis treatment shall meet the latest edition of ANSI/American Association of Medical Instrumentations (AAMI) RD62, Water treatment equipment for hemodialysis applications.

613.8 A diagram of all piping as installed shall be posted at the nurses' station and equipment room of all multistation or central dialysis units.

614.0 Identification of Potable and Non-Potable Water Lines.

614.1 Uses Not Permitted.

614.1.1 [OSHPD 1, 2, 3 & 4] Non-potable water shall not be piped for drinking, washing or bathing, washing of clothing, cooking, washing of food, washing of cooking or eating utensils, washing of food preparation or processing premises, or other personal service rooms.

614.2 [OSHPD 1, 2, 3 & 4] Non-potable water systems or systems carrying any other non-potable substance shall be installed so as to prevent backflow or back-siphonage into a potable water system.

614.3 [OSHPD 1, 2, 3 & 4] Outlets for non-potable water, such as water for industrial or fire-fighting purposes, shall be posted in a manner understandable to all employees to indicate that the water is unsafe and shall not be used for drinking, washing, cooking, or other personal service purposes.

614.4 [OSHPD 1] Emergency Water Supply.

614.4.1 For acute care hospital facilities required to meet NPC-5, an on site water supply of 150 gallons (567.9 L) (based on 50 gallons/day/bed for 72 hours) of potable water per licensed bed shall be provided.

The emergency supply shall have fittings to allow for replenishment of the water supply from transportable water sources and a means to collect water in portable containers in the event that normal water supply becomes unavailable.

Exceptions:

  1. With the licensing agency approval of a water rationing plan, the emergency water storage capacity may be computed based on the approved water rationing plan to provide for 72 hours of operation.
  2. With the approval of the Office and the licensing agency, hook-ups that allow for the use of transportable sources of potable water may be provided in lieu of on-side storage.

614.4.2 The emergency supply of water shall be provided at adequate pressure using gravity, pressure tanks or booster pumps. Pumps used for this purpose shall be provided with electrical power from the on site emergency system.

152

CALIFORNIA PLUMBING CODE – MATRIX ADOPTION TABLE
CHAPTER 7 – SANITARY DRAINAGE
Adopting AgencyBSCSFMHCDDSAOSHPDCSADPHAGRDWRCA
  121/ACACSSSS/CC1234     
Adopt Entire Chapter      XX         
Adopt Entire Chapter as amended (amended sections listed below)X XX    XXXX  X  
Adopt only those sections that are listed below                 
Chapter/Section
701.1.2.1        XXXX     
701.1.2.2  XX             
Table 7-3   X             
705.1.7 Exception  XX             
705.1.9 Exception  XX             
705.2.5  XX             
710.3.3.1  XX             
713.4  XX             
717.1              X  
724.0              X  
725.0              X  
726.0              X  
727.0        X        

153

154

CHAPTER 7
SANITARY DRAINAGE

Part 1 – Drainage Systems.

701.0 Materials.

701.1 Materials for drainage piping shall be in accordance with one of the referenced standards in Table 7–1 except that:

701.1.1 No galvanized wrought-iron or galvanized steel pipe shall be used underground and shall be kept not less than six (6) inches (152 mm) above ground.

701.1.2 ABS and PVC DWV piping installations shall be installed in accordance with applicable standards referenced in Table 14-1. Except for individual single-family dwelling units, materials exposed within ducts or plenums shall have a flame-spread index of a maximum of twenty-five (25) and a smoke-developed index of a maximum fifty (50), when tested in accordance with the Test for Surface-Burning Characteristics of the Building Materials (See the Building Code standards based on ASTM E 84 and UL 723).

701.1.2.1 [OSHPD 1, 2, 3 & 4] ABS and PVC installations are not allowed.

701.1.2.2 [HCD 1 & HCD 2] ABS and PVC installations are limited to not more than two stories of areas of residential accommodation.

701.1.3 No vitrified clay pipe or fittings shall be used above ground or where pressurized by a pump or ejector. They shall be kept not less than twelve (12) inches (305 mm) belowground.

701.1.4 Copper tube for drainage and vent piping shall have a weight of not less than that of copper drainage tube type DWV.

701.1.5 Stainless steel 304 pipe and fittings shall not be installed underground and shall be kept not less than six (6) inches (152 mm) above ground.

701.1.6 Cast-iron soil pipe and fittings shall be listed and tested to comply with standards referenced in Table 14-1. Such pipe and fittings shall be marked with country of origin and identification of the original manufacturer in addition to any markings required by referenced standards.

701.2 Materials for drainage fittings shall be in accordance with the applicable standards referenced in Table 7-1 of the same diameter as the piping served, and such fittings shall be compatible with the type of pipe used.

701.2.1 Fittings on screwed pipe shall be of the recessed drainage type. Burred ends shall be reamed to the full bore of the pipe.

701.2.2 The threads of drainage fittings shall be tapped so as to allow one-fourth (¼) inch per foot (20.8 mm/m) grade.

701.2.3 Fittings used for drainage shall be of the drainage type, have a smooth interior water-way, and be constructed so as to allow one-fourth (¼) inch per foot (20.8 mm/m) grade.

701.3 Lead. See Table 14-1. Sheet lead shall be not less than the following:

For safe pans – not less than four (4) pounds per square foot (19.5 kg/m2) or one-sixteenth (1/16)inch (1.6 mm) thick.

For flashings or vent terminals – not less than three (3) pounds per square foot (14.6 kg/m2) or 0.0472 inches (1.2 mm) thick.

Lead bends and lead traps shall be not less than one-eighth (1/18) inch (3.2 mm) wall thickness.

701.4 Ferrules and Bushings.

701.4.1 Caulking ferrules shall be manufactured from bronze or copper and shall be in accordance with Table 7-2(a).

701.4.2 Soldering bushings shall be of bronze or copper in accordance with Table 7-2(b).

TABLE 7-2(a)
CAULKING FERRULES
PIPE SIZE (inches)INSIDE DIAMETER (inches)LENGTH (inches)MINIMUM WEIGHT EACH
lb.oz.
210
3112
4