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Earlier editions: 20222019

Chapter 17 — REFERENCED STANDARDS

1701.2 Standards, Publications, Practices, and

California Plumbing Code (Title 24, Part 5) · 2025 edition · updated 2026-09-10 · California

Italicized text is a California amendment to the model code, as printed in the official publication.

Guides. The standards, publications, practices, and guides listed in Table 1701.2 are not referenced in other sections of

this code. The application of the referenced standards, publi

cations, practices, and guides shall be as specified in Section 301.2.2. The promulgating agency acronyms are found at the end of the tables.

TABLE 1701.2

STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES
DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
AHAM AHAM AHAM
AHAM FWD-1-2016 Food Waste Disposers Appliances
ARCSA ARCSA ARCSA
ARCSA/ASPE 78-2015 Stormwater Harvesting System Design for Direct End-Use Applications Miscellaneous
ASABE ASABE ASABE
ASABE/ICC 802-2014 Landscape Irrigation Sprinkler and Emitter Standard Irrigation
ASCE ASCE ASCE
ASCE 25-2016 Earthquake-Actuated Automatic Gas Shutoff Devices Fuel Gas
ASHRAE ASHRAE ASHRAE
ASHRAE/IES 90.1-2019 Energy Standard for Buildings Except Low-Rise Residential Buildings Miscellaneous
ASHRAE/IES 90.2-2018 Energy-Efficient Design of Low-Rise Residential Buildings Miscellaneous
ASHRAE 188-2021 Legionellosis: Risk Management for Building Water Systems Risk Management
ASHRAE Guideline 12-
2020
Managing the Risk of Legionellosis Associated with Building Water Systems Risk Management
ASME ASME ASME
ASME A13.1-2020 Scheme for the Identification of Piping Systems Piping
ASME A112.4.3-1999
(R2019)
Plastic Fittings for Connecting Water Closets to the Sanitary Drainage System Fittings
ASME A112.19.10-2017 Retrofit Dual Flush Devices for Water Closets Fixtures
ASME A112.21.3M-1985
(R2017)
Hydrants for Utility and Maintenance Use Valves
ASME B1.20.3-1976
(R2018)
Dryseal Pipe Threads (Inch) Joints
ASME B16.39-2019 Malleable Iron Threaded Pipe Unions: Classes 150, 250 and 300 Fittings
ASME B16.40-2019 Manually Operated Thermoplastic Gas Shutoffs and Valves in Gas Distribution Sys-
tems
Valves
ASME B31.1-2020 Power Piping Piping
ASME B36.19M-2018 Stainless Steel Pipe Piping, Ferrous
ASME BPVC Section IV-
2021
Rules for Construction of Heating Boilers Miscellaneous
ASPE ASPE ASPE
ARCSA/ASPE 78-2015 Stormwater Harvesting System Design for Direct End-Use Applications Miscellaneous
WQA/ASPE/ANSI S-803-
2017
Sustainable Drinking Water Treatment Systems Miscellaneous
ASSE ASSE ASSE
ASSE 1017-2009 Temperature Actuated Mixing Valves for Hot Water Distribution Systems Valves
ASSE 1066-1997 Individual Pressure Balancing In-Line Valves for Individual Fixture Fittings Valves
ASSE 1082-2018 Water Heaters with Integral Temperature Control Devices for Hot Water Distribution
Systems
Appliances
ASSE 1086-2020 Reverse Osmosis Water Efficiency – Drinking Water Appliances
ASSE/IAPMO/ANSI 5110-
2015
Backflow Prevention Assembly Testers Professional
Qualifications

352 2025 CALIFORNIA PLUMBING CODE

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
ASSE/IAPMO/ANSI 5120-
2015
Cross-Connection Control Surveyors Professional
Qualifications
ASSE/IAPMO/ANSI 5130-
2015
Backflow Prevention Assembly Repairers Professional
Qualifications
ASSE/IAPMO/ANSI 5140-
2015
Fire Protection System Cross-Connection Control Tester Professional
Qualifications
ASSE/IAPMO/ANSI 5150-
2015
Backflow Prevention Program Administrators Professional
Qualifications
ASSE/IAPMO/ANSI Series
6000-2021
Professional Qualifications Standard for Medical Gas Systems Personnel Professional
Qualifications
ASSE/IAPMO/ANSI 6015-
2021
Bulk Medical Gas/Cryogenic Fluid Central Supply Systems Installers Professional
Qualifications
ASSE/IAPMO/ANSI 6040-
2021
Medical Gas Systems Maintenance Personnel Professional
Qualifications
ASSE/IAPMO/ANSI 7010-
2020
Installers of Residential Potable Water Fire Sprinkler Systems for One- and Two-
Family Dwellings
Professional
Qualifications
ASSE/IAPMO/ANSI 7020-
2020
Inspectors of Residential Potable Water Fire Sprinkler Systems for One- and Two-
Family Dwellings
Professional
Qualifications
ASSE/IAPMO/ANSI Series
12000-2021
Professional Qualifications Standard for Water Management and Infection Control
Risk Assessment for Building Systems
Professional
Qualifications
ASSE/IAPMO/ANSI
12020-2021
Environment of Care, Infection Control and Construction Risk Assessment Profes-
sional Qualification Standard for Construction and Maintenance Employers
Professional
Qualifications
ASSE/IAPMO/ANSI
12060-2021
Water Quality Program Professional Qualifications Standard for Employers and Des-
ignated Representatives
Professional
Qualifications
ASSE/IAPMO/ANSI
12061-2021
Water Quality Program Professional Qualifications Standard for Plumbers Professional
Qualifications
ASSE/IAPMO/ANSI
12062-2021
Water Quality Program Professional Qualifications Standard for Pipefitters and
HVAC Technicians
Professional
Qualifications
ASSE/IAPMO/ANSI
12063-2021
Water Quality Program Professional Qualifications Standard for Sprinkler Fitters Professional
Qualifications
ASSE/IAPMO/ANSI
12080-2021
Professional Qualifications Standard for Legionella Water Safety and Management
Specialist
Professional
Qualifications
ASSE/IAPMO/ANSI Series
13000-2015 (R2020)
Service Plumber and Residential Mechanical Service Technician Professional Quali-
fications Standard
Professional
Qualifications
ASSE/IAPMO/ANSI
13010-2015 (R2020)
Professional Qualifications Standard for the Service Plumber Professional
Qualifications
ASSE/IAPMO/ANSI Series
16000-2019
Professional Qualifications Standard for Inspectors and Plans Examiners Professional
Qualifications
ASSE/IAPMO/ANSI
16010-2019
Plumbing Inspector Professional
Qualifications
ASSE/IAPMO/ANSI
16040-2019
Plumbing Plan Examiner Professional
Qualifications
ASSE/ARCSA/IAPMO/
ANSI Series 21000-2017
Rainwater Catchment Systems Personnel Professional
Qualifications
ASSE/IAPMO/ANSI
21110-2017
Rainwater Catchment Systems Installers Professional
Qualifications
ASSE/IAPMO/ANSI
21120-2017
Rainwater Catchment Systems Designers Professional
Qualifications
ASSE/IAPMO/ANSI
21130-2017
Inspectors of Rainwater and Stormwater Catchment Systems Professional
Qualifications
ASTM ASTM ASTM
ASTM A48/A48M-2003
(R2021)
Standard Specification for Gray Iron Castings Piping, Ferrous

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
ASTM A126-2004 (R2019) Standard Specification for Gray Iron Castings for Valves, Flanges, and Pipe Fittings Piping, Ferrous
ASTM A377-2018 Standard Index of Specifications for Ductile Iron Pressure Pipe Piping, Ferrous
ASTM A479/A479M-2020 Standard Specification for Stainless Steel Bars and Shapes for Use in Boilers and
Other Pressure Vessels
Piping, Ferrous
ASTM A536-1984
(R2019)e1
Standard Specification for Ductile Iron Castings Piping, Ferrous
ASTM A733-2016 Standard Specification for Welded and Seamless Carbon Steel and Austenitic Stain-
less Steel Pipe Nipples
Piping, Ferrous
ASTM A1045-2010
(R2021)
Standard Specification for Flexible Poly (Vinyl Chloride) (PVC) Gaskets used in
Connection of Vitreous China Plumbing Fixtures to Sanitary Drainage Systems
Piping, Plastic
ASTM B29-2019 Standard Specification for Refined Lead Joints
ASTM B370-2012 (R2019) Standard Specification for Copper Sheet and Strip for Building Construction Miscellaneous
ASTM B687-1999 (R2016) Standard Specification for Brass, Copper, and Chromium-Plated Pipe Nipples Piping, Copper Alloy
ASTM C14-2020 Standard Specification for Nonreinforced Concrete Sewer, Storm Drain, and Culvert
Pipe
Piping, Non-Metallic
ASTM C412-2019 Standard Specification for Concrete Drain Tile Piping, Non-Metallic
ASTM C443-2021 Standard Specification for Joints for Concrete Pipe and Manholes, Using Rubber Gaskets Joints
ASTM C444-2021 Standard Specification for Perforated Concrete Pipe Piping, Non-Metallic
ASTM C478/C478M-2020 Standard Specification for Circular Precast Reinforced Concrete Manhole Sections Miscellaneous
ASTM C1227-2020 Standard Specification for Precast Concrete Septic Tanks DWV Components
ASTM C1440-2021 Standard Specification for Thermoplastic Elastomeric (TPE) Gasket Materials for
Drain, Waste, and Vent (DWV), Sewer, Sanitary and Storm Plumbing Systems
Joints
ASTM D1784-2020 Standard Classification System and Basis for Specifications for Rigid Poly (Vinyl
Chloride) (PVC) Compounds and Chlorinated Poly (Vinyl Chloride) (CPVC) Com-
pounds
Piping, Plastic
ASTM D2321-2020 Standard Practice for Underground Installation of Thermoplastic Pipe for Sewers and
Other Gravity-Flow Applications
Piping, Plastic
ASTM D2517-2018 Standard Specification for Reinforced Epoxy Resin Gas Pressure Pipe and Fittings Piping, Plastic
ASTM D2657-2007 (R2015) Standard Practice for Heat Fusion Joining of Polyolefin Pipe and Fittings Joints
ASTM D2774-2021a Standard Practice for Underground Installation of Thermoplastic Pressure Piping Piping, Plastic
ASTM D2855-2020 Standard Practice for the Two-Step (Primer and Solvent Cement) Method of Joining
Poly (Vinyl Chloride) (PVC) or Chlorinated Poly (Vinyl Chloride) (CPVC) Pipe and
Piping Components with Tapered Sockets
Joints
ASTM D3122-2015 Standard Specification for Solvent Cement for Styrene-Rubber (SR) Plastic Pipe and
Fittings
Joints
ASTM D3311-2017 (R2021) Standard Specification for Drain, Waste, and Vent (DWV) Plastic Fittings Patterns Fittings
ASTM F402-2018 Standard Practice for Safe Handling of Solvent Cements, Primers, and Cleaners Used
for Joining Thermoplastic Pipe and Fittings
Joints
ASTM F480-2014 Standard Specification for Thermoplastic Well Casing Pipe and Couplings Made in
Standard Dimension Ratios (SDR), SCH 40 and SCH 80
Piping, Plastic
ASTM F810-2012 (R2018) Standard Specification for Smoothwall Polyethylene (PE) Pipe for Use in Drainage
and Waste Disposal Absorption Fields
Piping, Plastic
ASTM F949-2020 Standard Specification for Poly (Vinyl Chloride) (PVC) Corrugated Sewer Pipe with a
Smooth Interior and Fittings
Piping, Plastic
ASTM F1476-2007 (R2019) Standard Specification for Performance of Gasketed Mechanical Couplings for Use in
Piping Applications
Joints
ASTM F1499-2017 Standard Specification for Coextruded Composite Drain, Waste, and Vent Pipe
(DWV)
Piping, Plastic

354 2025 CALIFORNIA PLUMBING CODE

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
ASTM F1743-2017 Standard Practice for Rehabilitation of Existing Pipelines and Conduits by Pulled-in-
Place Installation of Cured-in-Place Thermosetting Resin Pipe (CIPP)
Piping, Plastic
ASTM F1924-2019 Standard Specification for Plastic Mechanical Fittings for Use on Outside Diameter
Controlled Polyethylene Gas Distribution Pipe and Tubing
Fittings
ASTM F1948-2020 Standard Specification for Metallic Mechanical Fittings for Use on Outside Diameter
Controlled Thermoplastic Gas Distribution Pipe and Tubing
Fittings
ASTM F2165-2019 Standard Specification for Flexible Pre-Insulated Piping Piping, Plastic
ASTM F2206-2019 Standard Specification for Fabricated Fittings of Butt-Fused Polyethylene (PE) DWV Components
ASTM F2306/F2306M-
2021
Standard Specification for 12 to 60 in. [300 to 1500 mm] Annular Corrugated Profile-
Wall Polyethylene (PE) Pipe and Fittings for Gravity-Flow Storm Sewer and Subsurface
Drainage Applications
Piping, Plastic
AWS AWS AWS
AWS B2.4-2012 Welding Procedure and Performance Qualification for Thermoplastics Joints, Certification
AWWA AWWA AWWA
AWWA C203-2020 Coal-Tar Protective Coatings and Linings for Steel Water Pipe Miscellaneous
AWWA C213-2015 Fusion-Bonded Epoxy Coatings and Linings for Steel Water Pipe and Fittings Miscellaneous
AWWA C215-2016 Extruded Polyolefin Coatings for Steel Water Pipe Miscellaneous
CFR CFR CFR
10 CFR 430 Energy Conservation Program for Consumer Products Energy Conservation
10 CFR 431.106 Uniform Test Method for The Measurement of Energy Efficiency of Commercial
Water Heating Equipment
Water Heating
Equipment
49 CFR 192 Transportation of Natural and Other Gas by Pipeline: Minimum Federal Standards Miscellaneous
CGA CGA CGA
CGA C-9-2019 Standard Color Marking of Compressed Gas Containers for Medical Use Miscellaneous
CGA S-1.3-2020 Pressure Relief Device Standards-Part 3-Stationary Storage Containers for Com-
pressed Gases
Fuel Gas
CGA V-1-2021 Compressed Gas Cylinder Valve Outlet and Inlet Connections Valves
CSA CSA CSA
CSA A257 Series-2019 Standards for Concrete Pipe and Manhole Sections Piping
CSA B55.2-2020 Drain Water Heat Recovery Units Miscellaneous
CSA B64.7-2021 Laboratory Faucet Vacuum Breakers (LFVB) Backflow Protection
CSA B66-2021 Design, Material, and Manufacturing Requirements for Prefabricated Septic Tanks
and Sewage Holding Tanks
DWV Components
CSA B128.1-2006/B128.2-
2006 (R2016)
Design and Installation of Non-Potable Water Systems/Maintenance and Field Test-
ing of Non-Potable Water Systems
Miscellaneous
CAN/CSA B356-2010
(R2020)
Water Pressure Reducing Valves for Domestic Water Supply Systems Valves
CAN/CSA G401-2014
(R2019)
Corrugated Steel Pipe Products Piping, Ferrous
ANSI Z21.12b-1994
(R2020)
Draft Hoods Fuel Gas, Appliances
CSA Z21.13-2017 Gas-Fired Low-Pressure Steam and Hot Water Boilers (same as CSA 4.9) Fuel Gas, Appliances
ANSI Z21.81a-2007/ CSA
6.25a-2007 (R2020)
Cylinder Connection Devices Fuel Gas
CSA Z21.86-2016 Vented Gas-Fired Space Heating Appliances (same as CSA 2.32) Fuel Gas, Appliances

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
ANSI Z83.11-2016
(R2021)/CSA 1.8-2016
(R2021)
Gas Food Service Equipment Fuel Gas, Appliances
CSA Z317.1-2021 Special Requirements for Plumbing Installations in Health Care Facilities Miscellaneous
ENERGY STAR ENERGY STAR ENERGY STAR
Energy Star-2007 Program Requirements for Commercial Ice Machines Miscellaneous
Energy Star-2012 (version
2.0)
Program Requirements Product Specification for Commercial Dishwashers Appliances
Energy Star-2016 (version
6.0)
Program Requirements for Residential Dishwashers Appliances
Energy Star-2018 (version
8.0)
Program Requirements Product specification for Clothes Washers (effective February
5, 2018)
Appliances
EPA EPA EPA
EPA/600/R-12/618-2012 Guidelines for Water Reuse Miscellaneous
EPA WaterSense-2007 High-Efficiency Lavatory Faucet Specification Fixtures
EPA WaterSense-2009 Specification for Flushing Urinals Fixtures
EPA WaterSense-2014 Specification for Tank-Type Toilets Fixtures
EPA WaterSense-2015 Specification for Flushometer-Valve Water Closets Fixtures
EPA WaterSense-2017 Specification for Spray Sprinkler Bodies Miscellaneous
EPA WaterSense-2018 Specification for Showerheads Fixtures
EPA WaterSense-2021 Specification for Soil Moisture-Based Irrigation Controllers Irrigation
EPA WaterSense-2021 Specification for Weather-Based Irrigation Controllers Irrigation
IAPMO IAPMO IAPMO
ASSE/IAPMO/ANSI 5110-
2015
Backflow Prevention Assembly Testers Professional
Qualifications
ASSE/IAPMO/ANSI 5120-
2015
Cross-Connection Control Surveyors Professional
Qualifications
ASSE/IAPMO/ANSI 5130-
2015
Backflow Prevention Assembly Repairers Professional
Qualifications
ASSE/IAPMO/ANSI 5140-
2015
Fire Protection System Cross-Connection Control Tester Professional
Qualifications
ASSE/IAPMO/ANSI 5150-
2015
Backflow Prevention Program Administrators Professional
Qualifications
ASSE/IAPMO/ANSI 6015-
2021
Bulk Medical Gas/Cryogenic Fluid Central Supply Systems Installers Professional
Qualifications
ASSE/IAPMO/ANSI 6040-
2021
Medical Gas Systems Maintenance Personnel Professional
Qualifications
ASSE/IAPMO/ANSI 7010-
2020
Installers of Residential Potable Water Fire Sprinkler Systems for One- and Two-
Family Dwellings
Professional
Qualifications
ASSE/IAPMO/ANSI 7020-
2020
Inspectors of Residential Potable Water Fire Sprinkler Systems for One- and Two-
Family Dwellings
Professional
Qualifications
ASSE/IAPMO/ANSI Series
12000-2021
Professional Qualifications Standard for Water Management and Infection Control
Risk Assessment for Building Systems
Professional
Qualifications
ASSE/IAPMO/ANSI
12020-2021
Environment of Care, Infection Control and Construction Risk Assessment Profes-
sional Qualification Standard for Construction and Maintenance Employers
Professional
Qualifications
ASSE/IAPMO/ANSI
12060-2021
Water Quality Program Professional Qualifications Standard for Employers and Des-
ignated Representatives
Professional
Qualifications
ASSE/IAPMO/ANSI
12061-2021
Water Quality Program Professional Qualifications Standard for Plumbers Professional
Qualifications

356 2025 CALIFORNIA PLUMBING CODE

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
ASSE/IAPMO/ANSI
12062-2021
Water Quality Program Professional Qualifications Standard for Pipefitters and
HVAC Technicians
Professional
Qualifications
ASSE/IAPMO/ANSI
12063-2021
Water Quality Program Professional Qualifications Standard for Sprinkler Fitters Professional
Qualifications
ASSE/IAPMO/ANSI
12080-2021
Professional Qualifications Standard for Legionella Water Safety and Management
Specialist
Professional
Qualifications
ASSE/IAPMO/ANSI Series
13000-2015 (R2020)
Service Plumber and Residential Mechanical Service Technician Professional Quali-
fications Standard
Professional
Qualifications
ASSE/IAPMO/ANSI
13010-2015 (R2020)
Professional Qualifications Standard for the Service Plumber Professional
Qualifications
ASSE/IAPMO/ANSI Series
16000-2019
Professional Qualifications Standard for Inspectors and Plans Examiners Professional
Qualifications
ASSE/IAPMO/ANSI
16010-2019
Plumbing Inspector Professional
Qualifications
ASSE/IAPMO/ANSI
16040-2019
Plumbing Plan Examiner Professional
Qualifications
ASSE/ARCSA/IAPMO/
ANSI Series 21000-2017
Rainwater Catchment Systems Personnel Professional
Qualifications
ASSE/IAPMO/ANSI
21110-2017
Rainwater Catchment Systems Installers Professional
Qualifications
ASSE/IAPMO/ANSI
21120-2017
Rainwater Catchment Systems Designers Professional
Qualifications
ASSE/IAPMO/ANSI
21130-2017
Inspectors of Rainwater and Stormwater Catchment Systems Professional
Qualifications
ANSI/CAN/IAPMO/ISO
30500-2019
Non-Sewered Sanitation Systems - Prefabricated Integrated Treatment Units - Gen-
eral Safety and Performance Requirements for Design and Testing
Miscellaneous
IAPMO IGC 67-2014e1 Specialized ABS and PVC DWV Fittings DWV Components
IAPMO IGC 193-2020 Safety Plates, Plate Straps, Notched Plates and Safety Collars Miscellaneous
IAPMO IGC 226-2019 Drinking Water Fountains with or Without Chiller or Heater Fixtures
IAPMO IGC 244-2021 Tub and Shower Flow-Reduction Systems Valves
IAPMO IGC 262-2020 Corrugated Thermoplastic Tanks DWV Components
IAPMO IGC 267-2015e1 Hydrants Without Integral Backflow Preventers Valves
IAPMO IGC 276-2019 Bundled Expanded Polystyrene (EPS) Synthetic Aggregate Units DWV Components
IAPMO IGC 315-2016 Water Manifold Systems Fittings
IAPMO IGC 327-2016 Flexible Metallic Expansion Joints for Pressure Systems Joints
IAPMO IGC 330-2018 Recirculating Shower Systems Fixtures
IAPMO IGC 332-2017a Hydronic Radiators Miscellaneous
IAPMO IGC 352-2020e1 Diverter Valves for use in Alternate Nonpotable Water Source System Valves
IAPMO IS 26-2019e2 Trenchless Insertion of Polyethylene (PE) Pipe for Sewer Laterals Piping
IAPMO PS 1-2019 Tank Risers DWV Components
IAPMO PS 23-2021 Dishwasher Drain Airgaps Backflow Protection
IAPMO PS 25-2019 Metallic Fittings Joining Polyethylene Pipe for Water Service and Yard Piping Joints
IAPMO PS 34-2019 Encasement Sleeves for Potable Water Pipe and Tubing Piping
IAPMO PS 36-2014el Lead-Free Sealing Compounds for Threaded Joints Joints
IAPMO PS 37-2019 Black Plastic PVC or PE Pressure Sensitive Corrosion Preventive Tape Miscellaneous
IAPMO PS 42-2013e1 Pipe Alignment and Secondary Support Systems Miscellaneous
IAPMO PS 50-2019 Flush Valves with Dual Flush Device for Water Closets or Water Closet Tanks with
Integral Flush Valves with a Dual Flush Device
Fixtures

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
IAPMO PS 51-2021 Expansion Joints and Flexible Expansion Joints for DWV Piping Systems Joints
IAPMO PS 52-2021 Pump/Dose, Sumps and Sewage Ejector Tanks with or without a Pump DWV Components
IAPMO PS 54-2021a Metallic and Plastic Utility Boxes Miscellaneous
IAPMO PS 59-2016ae2 Wastewater Diverter/Bypass Valves and Diversion Systems Fittings
IAPMO PS 63-2019 Plastic Leaching Chambers DWV Components
IAPMO PS 64-2012ae1 Roof Pipe Flashings Miscellaneous
IAPMO PS 67-2019 Early-Closure Replacement Flappers or Early Replacement Flapper with Mechanical
Assemblies
Fixtures
IAPMO PS 69-2019 Bathwaste and Overflow Assemblies with Tub Filler Spout DWV Components
IAPMO PS 73-2015 Dental Liquid-Ring Vacuum Pumps Miscellaneous
IAPMO PS 79-2019 Multiport Electronic Trap Primers DWV Components
IAPMO PS 81-2019 Precast Concrete Seepage Pit Liners and Covers DWV Components
IAPMO PS 85-2019 Tools for Mechanically Formed Tee Connections in Copper Tubing Miscellaneous
IAPMO PS 86-2019 Rainwater Diverter Valves for Non-Roofed Area Slabs DWV Components
IAPMO PS 91-2019 Plastic Stabilizers for Use with Plastic Closet Bends DWV Components
IAPMO PS 92-2013e1 Heat Exchangers and Indirect Water Heaters Miscellaneous
IAPMO PS 94-2012e1 Insulated Protectors for P-Traps, Supply Stops and Risers Miscellaneous
IAPMO PS 95-2018e3 Pipe Support Hangers and Hooks DWV Components
IAPMO PS 101-2019 Suction Relief Valves Valves
IAPMO PS 110-2019 PVC Cold Water Compression Fittings Fittings
IAPMO PS 111-2019 PVC Cold Water Gripper Fittings Fittings
IAPMO PS 112-2019 PVC Plastic Valves for Cold Water Distribution Systems Outside a Building and
CPVC Plastic Valves for Hot and Cold Water Distribution Systems
Valves
IAPMO PS 115-2019 Hot Water On-Demand or Automatic Activated Hot Water Pumping Systems Miscellaneous
IAPMO PS 119-2012ae3 Water-Powered Sump Pumps Miscellaneous
IAPMO/ANSI Z124.7-2013
(R2018)
Prefabricated Plastic Spa Shells Fixtures, Swimming
Pools, Spas, and Hot
Tubs
IAPMO/ANSI Z124.8-
2013e2 (R2018)
Plastic Liners for Bathtubs and Shower Receptors Fixtures
IAPMO/ANSI Z1000-2019 Prefabricated Septic Tanks DWV Components
ICC ICC ICC
ASABE/ICC 802-2014 Landscape Irrigation Sprinkler and Emitter Standard Irrigation
ISO ISO ISO
ANSI/CAN/IAPMO/ISO
30500-2019
Non-Sewered Sanitation Systems - Prefabricated Integrated Treatment Units - General
Safety and Performance Requirements for Design and Testing
Miscellaneous
MSS MSS MSS
MSS SP-25-2018 Standard Marking System for Valves, Fittings, Flanges, and Unions Miscellaneous
MSS SP-42-2013 Corrosion-Resistant Gate, Globe, Angle, and Check Valves with Flanged and Butt
Weld Ends (Classes 150, 300, & 600)
Piping, Ferrous
MSS SP-44-2019 Steel Pipeline Flanges Fittings
MSS SP-83-2018 Class 3000 and 6000 Pipe Unions, Socket Welding and Threaded (Carbon Steel,
Alloy Steel, Stainless Steels, and Nickel Alloys)
Joints
MSS SP-104-2018 Wrought Copper, Solder-Joint Pressure Fittings Fittings
MSS SP-106-2019 Cast Copper Alloy Flanges and Flanged Fittings: Class 125, 150, and 300 Fittings
MSS SP-109-2018 Weld-Fabricated, Copper Solder-Joint Pressure Fittings Fittings

358 2025 CALIFORNIA PLUMBING CODE

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
MSS SP-123-2018 Non-Ferrous Threaded and Solder-Joint Unions for Use with Copper Water Tube Joints
NFPA NFPA NFPA
NFPA 13R-2022 Standard for the Installation of Sprinkler Systems in Low-Rise Residential Occupan-
cies
Miscellaneous
NFPA 80-2022 Standard for Fire Doors and Other Opening Protectives Miscellaneous
NFPA 501A-2021 Standard for Fire Safety Criteria for Manufactured Home Installations, Sites, and
Communities
Miscellaneous
NFPA 1981-2019 Standard on Open-Circuit Self-Contained Breathing Apparatus (SCBA) for Emer-
gency Services
Miscellaneous
NFPA 1989-2019 Standard on Breathing Air Quality for Emergency Services Respiratory Protection Miscellaneous
NFPA 5000-2021 Building Construction and Safety Code Miscellaneous
NSF NSF NSF
NSF/ANSI 2-2019 Food Equipment Appliances
NSF/ANSI 4-2020 Commercial Cooking, Rethermalization, and Powered Hot Food Holding and Trans-
portation Equipment
Appliances
NSF/ANSI 5-2019 Water Heaters, Hot Water Supply Boilers, and Heat Recovery Equipment Appliances
NSF/ANSI 12-2018 Automatic Ice Making Equipment Appliances
NSF/ANSI 18-2020 Manual Food and Beverage Dispensing Equipment Appliances
NSF/ANSI 29-2021 Detergent and Chemical Feeders for Commercial Spray-Type Dishwashing Machines Appliances
NSF/ANSI 40-2020 Residential Wastewater Treatment Systems DWV Components
NSF/ANSI 41-2018 Non-Liquid Saturated Treatment Systems DWV Components
NSF/ANSI 46-2021 Evaluation of Components and Devices Used in Wastewater Treatment Systems DWV Components
NSF/ANSI/CAN 60-2021 Drinking Water Treatment Chemicals - Health Effects Water Treatment
NSF/ANSI 169-2020 Special Purpose Food Equipment and Devices Appliances
NSF/ANSI/CAN 372-2020 Drinking Water System Components - Lead Content Miscellaneous
SAE SAE SAE
SAE J512-1997 Automotive Tube Fittings Fittings
SAE J1670-2008 Type “F” Clamps for Plumbing Applications Joints
TCNA TCNA TCNA
TCNA A118.10-2014
(R2019)
Load Bearing, Bonded, Waterproof Membranes for Thin-Set Ceramic Tile and
Dimension Stone Installation
Miscellaneous
UL UL UL
UL 70-2001 Septic Tanks, Bituminous-Coated Metal DWV Components
UL 80-2007 Steel Tanks for Oil-Burner Fuels and Other Combustible Liquids (with revisions
through April 26, 2019)
Fuel Gas
UL 144-2021 LP-Gas Regulators (with revisions through August 26, 2021) Fuel Gas
UL 252-2017 Compressed Gas Regulators (with revisions through August 10, 2018) Fuel Gas
UL 296-2017 Oil Burners (with revisions through January 8, 2021) Fuel Gas, Appliances
UL 404-2010 Gauges, Indicating Pressure, for Compressed Gas Service (with revisions through
February 11, 2015)
Fuel Gas
UL 429-2013 Electrically Operated Valves (with revisions through March 19, 2021) Valves
UL 536-2021 Flexible Metallic Hose Fuel Gas

REFERENCED STANDARDS

TABLE 1701.2 (continued) STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES

DOCUMENT NUMBER DOCUMENT TITLE APPLICATION
UL 563-2009 Ice Makers (with revisions through May 26, 2021) Appliances
UL 569-2013 Pigtails and Flexible Hose Connectors for LP-Gas (with revisions through July 28, 2017) Fuel Gas
UL 726-1995 Oil-Fired Boiler Assemblies (with revisions through October 9, 2013) Fuel Gas, Appliances
UL 1206-2003 Electric Commercial Clothes-Washing Equipment (with revisions through June 14,
2021)
Appliances
UL 1331-2005 Station Inlets and Outlets (with revisions through February 5, 2020) Medical Gas
UL 1795-2016 Hydromassage Bathtubs (with revisions through December 8, 2017) Fixtures
UL 1951-2011 Electric Plumbing Accessories (with revisions through June 27, 2020) Miscellaneous
UL 2157-2018 Electric Clothes Washing Machines and Extractors (with revisions through September
20, 2019)
Appliances
WQA WQA WQA
WQA S-300-2000 Point-of-Use Low-Pressure Reverse Osmosis Drinking Water Systems Appliances
WQA/ASPE/ANSI S-803-
2017
Sustainable Drinking Water Treatment Systems Miscellaneous

360 2025 CALIFORNIA PLUMBING CODE

REFERENCED STANDARDS

ABBREVIATIONS IN TABLE 1701.1 AND TABLE 1701.2

AHAM Association of Home Appliance Manufacturers, 1111 19th Street, NW, Suite 402, Washington, DC 20036.

AAMI Association for the Advancement of Medical Instrumentation, 901 N. Glebe Road, Suite 300, Arlington, VA 22203.

ANSI American National Standards Institute, Inc., 25 W. 43rd Street, 4th Floor, New York, NY 10036.

ARCSA American Rainwater Catchment Systems Association, 6101 Long Prairie Road, Suite 744, PMB 251, Flower Mound, TX 75028.

ASABE American Society of Agricultural and Biological Engineers, 2950 Niles Road, Street Joseph, MI 49085.

ASCE American Society of Civil Engineers, 1801 Alexander Bell Drive, Reston, VA 20191-4400.

ASHRAE American Society of Heating, Refrigerating, and Air Conditioning Engineers, Inc., 1791 Tullie Circle, NE, Atlanta, GA 30329-2305.

ASME American Society of Mechanical Engineering, Two Park Avenue, New York, NY 10016-5990.

ASPE American Society of Plumbing Engineers, 6400 Shafer Court, Suite 350, Rosemont, IL 60018.

ASSE American Society of Sanitary Engineering, 18927 Hickory Creek Drive, Suite 220, Mokena, IL 60448.

ASSP American Society of Safety Professionals, 520 N. Northwest Highway, Park Ridge, IL 60068.

ASTM ASTM International, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959.

AWS American Welding Society, 8669 NW 36 Street, #130 Miami, FL 33166-6672.

AWWA American Water Works Association, 6666 W. Quincy Avenue, Denver, CO 80235.

CFR Code of Federal Regulations, U.S Government Publishing Office, 723 North Capitol Street, N.W. Washington, DC 20401-001

CGA Compressed Gas Association, 14501 George Carter Way, Suite 103, Chantilly, VA 20151.

CISPI Cast-Iron Soil Pipe Institute, 2401 Fieldcrest Drive, Mundelein, IL 60060.

CSA Canadian Standards Association, 178 Rexdale Boulevard, Toronto, Ontario, Canada, M9W 1R3.

DOE U.S. Department of Energy, Forrestal Building, 1000 Independence Avenue, SW, Washington, DC 20585.

e1 An editorial change since the last revision or reapproval.

ENERGY STAR 1200 Pennsylvania Avenue, N.W., Washington, D.C. 20460.

EPA U.S. Environmental Protection Agency, Office of Wastewater Management (4204M), 1200 Pennsylvania Avenue, N.W., Washington, D.C. 20460.

IAPMO International Association of Plumbing and Mechanical Officials, 4755 E. Philadelphia Street, Ontario, CA 91761.

ICC International Code Council, 500 New Jersey Avenue, NW, 6th Floor, Washington, DC 20001.

ISEA International Safety Equipment Association, 1901 N. Moore Street, Suite 808, Arlington, VA 22209-1762.

ISO International Organization for Standardization, 1 ch. de la Voie-Creuse, Casa Postale 56, CH-1211 Geneva 20, Switzerland.

MSS Manufacturers Standardization Society of the Valve and Fittings Industry, 127 Park Street, NE, Vienna, VA 22180.

NFPA National Fire Protection Association, 1 Batterymarch Park, Quincy, MA 02169-7471.

NSF NSF International, 789 N. Dixboro Road, Ann Arbor, MI 48105.

PDI Plumbing and Drainage Institute, 800 Turnpike Street, Suite 300, North Andover, MA 01845.

SAE Society of Automotive Engineers, 400 Commonwealth Drive, Warrendale, PA 15096.

TCNA Tile Council of North America, Inc. 100 Clemson Research Blvd., Anderson, SC 29625.

UL Underwriters Laboratories, Inc., 333 Pfingsten Road, Northbrook, IL 60062.

WQA Water Quality Association, 4151 Naperville Road, Lisle, IL 60532-3696.

WSC Water Systems Council, 1101 30th Street, NW, Suite 500, Washington, D.C. 20007.

362 2025 CALIFORNIA PLUMBING CODE

APPENDICES

The appendices are intended to supplement the provisions of the installation requirements of this code. The definitions in Chapter 2 are also applicable to the appendices.

TABLE OF CONTENTS

Page Appendix A

Appendix B

Appendix C

Appendix D

Appendix E

Appendix F

Appendix G

Appendix H

Appendix I

Appendix J

Appendix K

Appendix L

Appendix M

Appendix N

TABLE OF CONTENTS (continued)

Appendix O

Appendix P

Appendix Q

Appendix R

Appendix S

364 2025 CALIFORNIA PLUMBING CODE

CALIFORNIA PLUMBING CODE – MATRIX ADOPTION TABLE

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Contents — California Plumbing Code (Title 24, Part 5)
California Plumbing Code (Title 24, Part 5)
  1. Chapter 1 — GENERAL CODE PROVISIONS
  2. Chapter 2 — DEFINITIONS
  3. Chapter 3 — GENERAL REGULATIONS
  4. Chapter 4 — PLUMBING FIXTURES AND FIXTURE FITTINGS
  5. Chapter 5 — WATER HEATERS
  6. Chapter 6 — WATER SUPPLY AND DISTRIBUTION
  7. Chapter 7 — SANITARY DRAINAGE
  8. Chapter 8 — INDIRECT WASTES
  9. Chapter 9 — VENTS
  10. Chapter 10 — TRAPS AND INTERCEPTORS
  11. Chapter 11 — STORM DRAINAGE
  12. Chapter 12 — FUEL GAS PIPING
  13. Chapter 13 — HEALTH CARE FACILITIES AND MEDICAL GAS AND MEDICA…
  14. Chapter 14 — FIRESTOP PROTECTION
  15. Chapter 15 — ALTERNATE WATER SOURCES FOR NONPOTABLE APPLICATIONS
  16. Chapter 16 — NONPOTABLE RAINWATER CATCHMENT SYSTEMS
  17. Chapter 17 — REFERENCED STANDARDS
  18. Appendix A — RECOMMENDED RULES FOR SIZING THE WATER SUPPLY SYS…
  19. Appendix B — EXPLANATORY NOTES ON COMBINATION WASTE AND VENT S…
  20. Appendix C — ALTERNATE PLUMBING SYSTEMS
  21. Appendix D — SIZING STORM WATER DRAINAGE SYSTEMS
  22. Appendix E — MANUFACTURED/MOBILE HOME PARKS AND RECREATIONAL V…
  23. Appendix F — FIREFIGHTER BREATHING AIR REPLENISHMENT SYSTEMS
  24. Appendix G — SIZING OF VENTING SYSTEMS
  25. Appendix H — PRIVATE SEWAGE DISPOSAL SYSTEMS
  26. Appendix I — INSTALLATION STANDARDS
  27. Appendix J — COMBINATION OF INDOOR AND OUTDOOR COMBUSTION AND …
  28. Appendix K — POTABLE RAINWATER CATCHMENT SYSTEMS
  29. Appendix L — SUSTAINABLE PRACTICES
  30. Appendix M — PEAK WATER DEMAND CALCULATOR
  31. Appendix N — IMPACT OF WATER TEMPERATURE ON THE POTENTIAL FOR …
  32. Appendix O — NON-SEWERED SANITATION SYSTEMS
  33. Appendix P — PROFESSIONAL QUALIFICATIONS
  34. Appendix Q — INDOOR HORTICULTURAL FACILITIES
  35. Appendix R — TINY HOUSES
  36. Appendix S — ONSITE STORMWATER TREATMENT SYSTEMS

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