CRSC · California Referenced Standards Code
Which standard applies to earthquake-actuated automatic gas shutoff systems?
The California Referenced Standards Code requires that earthquake‑actuated automatic gas shutoff devices be certified to ANSI/ASCE/SEI 25‑16 by the Division of the State Architect (see § 12‑16‑101); installations of customer‑owned units must follow the California Plumbing Code and any local ordinance.
Last reviewed: July 6, 2026
What the code requires — plain English
The applicable certification standard for earthquake-actuated automatic gas shutoff devices is ANSI/ASCE/SEI 25-16 (ASCE 25-2016). The Division of the State Architect uses that standard for device certification as required by § 12-16-101. Installations of customer‑owned devices that meet that certification must be installed in accordance with the California Plumbing Code (see § 12-16-101.1 and California Plumbing Code § 1211.8).
The single most important rule: Devices must be certified to ANSI/ASCE/SEI 25-16 for the State Architect to accept them; installation must follow the California Plumbing Code and any applicable local ordinance.
Requirements in detail
Applicable standard and certification
- Applicable standard: ANSI/ASCE/SEI 25-16 (2016) — this is the standard the State Architect uses for certification of earthquake‑actuated automatic gas shutoff devices per § 12-16-101.
- Certification authority: Division of the State Architect — the devices must conform to the ASCE 25-16 requirements for DSA certification (same controlling section).
Installation rule
- Installation of a customer‑owned device that satisfies the ASCE standard must be in accordance with the California Plumbing Code; local ordinance requirements govern whether installation is mandatory for a building. See § 12-16-101.1 and California Plumbing Code § 1211.8.
Decision‑relevant table
| Decision dimension | Value / threshold | Code Reference |
|---|---|---|
| Required certification standard | ANSI/ASCE/SEI 25-16 (2016) | § 12-16-101 |
| Certifying entity | Division of the State Architect (DSA) | § 12-16-101 |
| Installation authority / rules | Install per California Plumbing Code; local ordinance may require installations | § 12-16-101.1 and § 1211.8 (Cal. Plumbing Code) |
| Related device standard (residential excess flow) | ASTM F2138‑12(2017) and ANSI Z21.93‑2017/CSA 6.30‑2017 (for excess-flow devices) | § 12-16-201 |
| Listed reference in Plumbing Code | ASCE 25-2016 appears in the Plumbing Code referenced standards table | Table (Referenced Standards) — Cal. Plumbing Code (ASCE 25-2016) |
What the ASCE reference means (brief)
- The CRSC does not rewrite ASCE 25; it points to ANSI/ASCE/SEI 25-16 as the performance and test standard the DSA will use to evaluate devices. The ASCE standard contains the technical test methods, performance criteria, and product labeling/marking requirements that a device must meet for certification. The CRSC text itself simply designates that standard as applicable — § 12-16-101.
Exceptions & special cases
- Local ordinances control where installation is required. The Plumbing Code clarifies that mandatory installation is determined by local ordinance and that uncertified devices are prohibited in buildings open to the public when the ordinance mandates installation. See California Plumbing Code § 1211.8.
- The CRSC text applies to certification by the State Architect; it does not by itself set installation practice details (those are in the Plumbing Code and local ordinances). See § 12-16-101.1.
Common mistakes
- Assuming any “earthquake shutoff” product is acceptable without DSA certification. The CRSC requires use of ANSI/ASCE/SEI 25-16 for DSA certification — uncertified devices may be prohibited by local ordinance. Do not rely solely on a manufacturer’s internal tests; check for DSA certification. § 12-16-101.
- Confusing excess flow valves (different standard) with seismic shutoff devices. Residential excess‑flow devices are certified under separate CRSC provisions (see § 12-16-201), not ASCE 25-16.
- Ignoring the Plumbing Code: even a DSA‑certified device still must be installed per the California Plumbing Code and any applicable local ordinance (see § 12-16-101.1 and Cal. Plumbing Code § 1211.8).
Worked example — concrete scenario
Scenario: A city ordinance requires earthquake shutoff valves on all commercial buildings. A contractor proposes a customer‑owned device.
- Verify the device is certified to ANSI/ASCE/SEI 25-16 and listed by the Division of the State Architect. If the device lacks DSA certification to ASCE 25-16, it will not meet the CRSC requirement in § 12-16-101.
- If it is DSA‑certified, install the device in accordance with the California Plumbing Code (follow § 1211.8 and the manufacturer’s instructions), and comply with any local ordinance installation rules (see § 12-16-101.1).
- Example numeric check: suppose the ordinance requires a shutoff on each building gas service entrance. The building owner purchases a DSA‑listed unit marked “Certified to ANSI/ASCE/SEI 25‑16.” That marking plus a DSA listing means the device meets the CRSC certification reference in § 12-16-101; proceed to installation per the Plumbing Code and local permit process.
Related provisions
- § 12-16-101 — Applicable standard for earthquake‑actuated automatic gas shutoff systems (primary controlling section).
- § 12-16-101.1 — Installation of customer‑owned devices must follow the California Plumbing Code.
- § 12-16-201 — California standard for residential excess flow actuated automatic gas shutoff valves (different standard/specification).
- California Plumbing Code § 1211.8 — Rules on earthquake‑actuated gas shutoff valves, certification requirement, and local ordinance applicability.
Code references
Grounded in the retrieved California Referenced Standards Code — click a citation to read the verbatim passage:
CRSC § 12-16 High relevance — show source text
12-16-1 ENGINEERING REGULATIONS—QUALITY AND
DESIGN OF THE MATERIALS OF CONSTRUCTION
CALIFORNIA STANDARD FOR EARTHQUAKE-ACTUATED AUTOMATIC GAS SHUTOFF SYSTEMS (SEE CCR TITLE 24, PART 2, CHAPTERS 16 AND 16A, AND CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-1
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19180–19183, Health and Safety Code. Reference: Section 19182, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-101. The American Society of Civil Engineers (ASCE) requirements for “Earthquake-Actuated Automatic Gas Shutoff Devices,” ANSI/ASCE/SEI 25-16 (copyright 2016 by ASCE), shall be the applicable standard used by the Division of the State Architect for the certification of these devices.
Sec. 12-16-101.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
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12-16-2 ENGINEERING REGULATIONS—QUALITY AND
DESIGN OF THE MATERIALS OF CONSTRUCTION
CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.
Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
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12-31C RADIATION SHIELDING STANDARDS
STANDARD 12-31C-1
DEPARTMENT OF HEALTH SERVICES
CRSC § 64703-64705. High relevance — show source text
This installed weight per square foot shall conform with the manufacturer’s installed design density per square foot at the manufacturer’s labeled R -value.
(b) Water heater insulation kits. No water heater insulation kit shall be sold, on or after March 25, 1982, unless it has a thermal resistance of at least R-6 and is so identified.
Each water heater insulation kit sold shall include instructions which are equivalent to the Department of Energy standard practice for the installation of insulation on gas-fired, oil-fired and electric resistance water heaters, 44 Fed. Reg. pages 64703-64705.
Authority: Section 25922, Public Resources Code.
Reference: Section 25922, Public Resources Code.
HISTORY:
- Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).
- Editorial correction of subsection (a) filed 1-13-82 (Register 82, No. 2).
INTERPRETATION
Sec. 12-13-1565.
The General Counsel of the Commission shall make a determination as to the application or interpretation of any provision of this article to any person requesting such a determination. Any such request shall be submitted in writing to the Commission. The Commission shall make written replies to such inquiries and shall widely publish interpretations that have broad application or interest.
Authority: Section 25218 (e), Public Resources Code.
Reference: Sections 25920 and 25922, Public Resources Code.
HISTORY:
- Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).
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12-16-1 ENGINEERING REGULATIONS—QUALITY AND
DESIGN OF THE MATERIALS OF CONSTRUCTION
CALIFORNIA STANDARD FOR EARTHQUAKE-ACTUATED AUTOMATIC GAS SHUTOFF SYSTEMS (SEE CCR TITLE 24, PART 2, CHAPTERS 16 AND 16A, AND CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-1
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19180–19183, Health and Safety Code. Reference: Section 19182, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-101. The American Society of Civil Engineers (ASCE) requirements for “Earthquake-Actuated Automatic Gas Shutoff Devices,” ANSI/ASCE/SEI 25-16 (copyright 2016 by ASCE), shall be the applicable standard used by the Division of the State Architect for the certification of these devices.
Sec. 12-16-101.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
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12-16-2 ENGINEERING REGULATIONS—QUALITY AND
CRSC § 7.14.1 High relevance — show source text
[NFPA 54:7.14.1] 1211.7.1 Safety Control. Any essential safety control depending on electric current as the operating medium shall be of a type that shuts off (fail safe) the flow of gas in the event of current failure. [NFPA 54:7.14.2] 1211.8 Earthquake-Actuated Gas Shutoff Valves. Earthquake-actuated gas shutoff valves designed to auto- matically shut off the gas at the location of the valve in the event of a seismic disturbance and certified by the State Architect as conforming to California Code of Regulations, Title 24, Part 12, Chapter 12-16-1, shall be provided for buildings when such installation is required by local ordi- nance. Earthquake-actuated gas shutoff valves which have not been certified by the State Architect shall be prohibited in buildings open to the public under mandatory installation by local ordinance. Installation of the valves shall be in accordance with local ordinance, and in the absence of such per the manufacturer’s installation instructions.
1212.0 Appliance and Equipment Connections to Building Piping. 1212.1 Connecting Appliances and Equipment. Appliances and equipment shall be connected to the building piping in compliance with Section 1212.6 through Section 1212.8 by one of the following: (1) Rigid metallic pipe and fittings. (2) Semirigid metallic tubing and metallic fittings. Aluminum alloy tubing shall not be used in exterior locations. (3) A connector for gas appliances listed in accordance with ANSI Z21.24/CSA 6.10. The connector shall be used in
accordance with the manufacturer’s installation instructions and shall be in the same room as the appliance. Only one connector shall be used per appliance. (4) A connector for outdoor gas appliances and manufactured homes listed in accordance with ANSI Z21.75/CSA 6.27. Only one connector shall be used per appliance. (5) CSST where installed in accordance with the manufacturer’s installation instructions. CSST shall not be directly routed into a metallic appliance enclosure where the appliance is connected to a metallic vent that terminates above a roofline. CSST shall connect only to appliances that are fixed in place. (6) Listed nonmetallic gas hose connectors in accordance with Section 1212.3.
(7) Unlisted gas hose connectors for use in laboratories and educational facilities in accordance with Section 1212.4.
[NFPA 54:9.6.1]
1212.1.1 Protection of Connectors. Connectors and tubing addressed in Section 1212.1(2), Section 1212.1(3), Section 1212.1(4), Section 1212.1(5), and Section 1212.1(6) shall be installed to be protected against physical and thermal damage. Aluminum alloy tubing and connectors shall be coated to protect against external corrosion where they are in contact with masonry, plaster, or insulation or are subject to repeated wettings by such liquids as detergents, sewage, or water other than rainwater. [NFPA 54:9.6.1.1]
2025 CALIFORNIA PLUMBING CODE 229
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FUEL GAS PIPING
CRSC § 1-2016 High relevance — show source text
Col1 STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES Col3 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-
2020Managing 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-
temsValves ASME B31.1-2020 Power Piping Piping ASME B36.19M-2018 Stainless Steel Pipe Piping, Ferrous ASME BPVC Section IV-
2021Rules 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-
2017Sustainable 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 CRSC § 12-7 High relevance — show source text
Fire tests of building
construction and materials.|SFM|Part 2, Section 703| |Chapter 12-7-2|Reserved||| |Chapter 12-7-3|Fire-resistive standards.
Fire testing furnaces.|SFM|Part 9, Section 3001| |Chapter 12-7-4|Fire-resistive standards.
Fire door assembly tests.|SFM|Part 2, Section 716| |Chapter 12-7-5|Fire-resistive standards. Interior
finish of decorative material.|SFM|Part 2, Chapter 8
Part 9, Chapter 8| |Chapter 12-7A|Materials and construction methods for
exterior wildfire exposure|SFM|Part 7, Chapter 5| |Chapter 12-8-1|Fire-resistive standards for fire protection|SFM|Part 2, Sections 408.14 and 435.6.2| |Appendix 12-8-1A|Calculation of the total rate of heat and carbon
monoxide or carbon dioxide production|SFM|| |Appendix 12-8-1B|Guide to mounting techniques for wall and
ceiling interior finish material|SFM|| |Chapter 12-10-1|Exits. Power-operated exit doors.|SFM|Part 2, Sections 408.4.2, 1010.1.4.2, 1010.1.9.1| |Chapter 12-10-2|Exits. Single-point latching or locking devices.|SFM|Part 2, Section 1010.2.2
Part 9, Section 1010.2.2| |Chapter 12-10-3|Exits. Emergency exit and panic hardware.
|SFM|Part 9, Section 1009.12| |Chapter 12-11A,
12-11B|Detectable warning products and directional
surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
Part 6, Section 110.8
Part 9, Section 720, Table 721.1(1)
Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems.CRSC § 1211.2 High relevance — show source text
Where any CSST component of a piping system does not have an arcresistant jacket or coating system, the bonding requirements of Section 1211.2 shall apply. Arc-resistant jacketed CSST shall be considered to be bonded when it is connected to appliances that are connected to the appliance grounding conductor of the circuit supplying that appliance. [NFPA 54:7.12.3] 1211.4 Prohibited Use. Gas piping shall not be used as a grounding conductor or electrode. [NFPA 54:7.12.4.1] 1211.5 Lightning Protection System. Where a lightning protection system is installed, the bonding of the gas piping shall be in accordance with NFPA 780. [NFPA 54:7.12.5]
1211.6 Electrical Circuits. Electrical circuits shall not utilize gas piping or components as conductors. Exception: Low-voltage (50 V or less) control circuits, ignition circuits, and electronic flame detection device circuits shall be permitted to make use of piping or components as a part of an electric circuit. [NFPA 54:7.13] 1211.7 Electrical Connections. All electrical connections between wiring and electrically operated control devices in a
piping system shall conform to the requirements of Califor- nia Electrical Code . [NFPA 54:7.14.1] 1211.7.1 Safety Control. Any essential safety control depending on electric current as the operating medium shall be of a type that shuts off (fail safe) the flow of gas in the event of current failure. [NFPA 54:7.14.2] 1211.8 Earthquake-Actuated Gas Shutoff Valves. Earthquake-actuated gas shutoff valves designed to auto- matically shut off the gas at the location of the valve in the event of a seismic disturbance and certified by the State Architect as conforming to California Code of Regulations, Title 24, Part 12, Chapter 12-16-1, shall be provided for buildings when such installation is required by local ordi- nance. Earthquake-actuated gas shutoff valves which have not been certified by the State Architect shall be prohibited in buildings open to the public under mandatory installation by local ordinance. Installation of the valves shall be in accordance with local ordinance, and in the absence of such per the manufacturer’s installation instructions.
1212.0 Appliance and Equipment Connections to Building Piping. 1212.1 Connecting Appliances and Equipment. Appliances and equipment shall be connected to the building piping in compliance with Section 1212.6 through Section 1212.8 by one of the following: (1) Rigid metallic pipe and fittings. (2) Semirigid metallic tubing and metallic fittings. Aluminum alloy tubing shall not be used in exterior locations. (3) A connector for gas appliances listed in accordance with ANSI Z21.24/CSA 6.10. The connector shall be used in
CRSC § 1009.12 High relevance — show source text
Emergency exit and panic hardware.
|SFM|Part 9, Section 1009.12| |Chapter 12-11A,
12-11B|Detectable warning products and directional
surfaces|DSA|Part 2, Sections 1112A.9, 1116A.5, 11B-247,
11B-406.5.12, 11B-705, 11B-810.5.2| |Chapter 12-12|Reserved||| |Chapter 12-13|Standards for insulating material|CA/SFM|Part 2.5, Section R302.10.1
Part 6, Section 110.8
Part 9, Section 720, Table 721.1(1)
Part 11, Section A5.504.4.8| |Chapter 12-16-1|California standard for earthquake-actuated
automatic gas shutoff systems|DSA|Part 2, Chapters 16 and 16A
Part 5, Section 1211.8| |Chapter 12-16-2|California standard for residential excess flow
actuated automatic gas shutoff valves|DSA|Part 5, Section 1209.1| |Chapter 12-31C|Radiation shielding|DPH|Part 2, Section 3102C| |Chapter 12-71|Air filters|SFM|Part 4, Sections 401.2, 509.2.3, 509.2.3.4
Part 6, Section 120.1| |Chapter 12-72-1|Protective signaling systems.
Standard test procedures.|SFM|| |Chapter 12-72-2|Protective signaling systems. Single-and
multiple-station fire alarm devices
mechanically operated type.|SFM|| |Chapter 12-72-3|Protective signaling systems. Smoke detectors,
combustion products type.|SFM||2025 CALIFORNIA REFERENCED STANDARDS CODE ix
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12-1 ADMINISTRATION
RESERVED
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12-3 RELEASING SYSTEMS FOR SECURITY BARS IN DWELLINGS
(This standard includes provisions of Underwriters Laboratories Subject 2326, Appendix B, dated December 17, 1999, reprinted with their permission.)
INTRODUCTION
SECTION 12-3-1—SCOPE
12-3-1.1 These requirements cover releasing systems for bars, grilles, mesh, glazing or other items intended to provide security at doors and windows required for emergency escape from dwelling units. When actuated by the occupant, the system allows the obstructions over the door or window to be moved so occupants can escape in the event of an emergency.
CRSC § 509.4.1 High relevance — show source text
2021)|Fuel Gas, Appliances|509.4.1, 509.4.2,
509.4.3| |UL 1777-2015|Chimney Liners (with revisions through April 11, 2019)|Chimney Liners|509.5.3(2)| |UL 2523-2009|Solid Fuel-Fired Hydronic Heating Appliances, Water Heaters,
and Boilers (with revisions through March 16, 2018)|Fuel Gas, Appliances|Table 501.1(1)| |UL 2561-2016|1400 Degree Fahrenheit Factory-Built Chimneys (with revisions
through April 19, 2018)|Fuel Gas, Appli-
ances|509.5.1| |WSC|WSC|WSC|WSC| |ASSE 1099-2021/WSC PST
2000-2021|Pressurized Water Storage Tanks|Valves|607.2|2025 CALIFORNIA PLUMBING CODE 351
), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.
REFERENCED STANDARDS
1701.2 Standards, Publications, Practices, and 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
Col1 STANDARDS, PUBLICATIONS, PRACTICES, AND GUIDES Col3 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-
2020Managing 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. CRSC § 12-72 High relevance — show source text
purposes.
(c) Control unit. A control unit covered by this standard consists of a unit assembly of electrical parts having provisions for the connection of power-supply circuits routed through the control unit equipment by a prescribed scheme of circuitry; signal initiating circuits extended to separate devices by which the operating parts of the control unit are actuated for signals, and to incorporated or separate devices by which the signals are transmitted or indicated to form a coordinated combination system for definite signaling service.
TEST REPORTS
Sec. 12-72-101.
(a) Test report contents. The report shall include engineering data, and an analysis comparing the design against Section 12-72102 (a) through (u); it shall include wiring, diagrams, operating manuals and photographs as set forth in Section 12-72-102 (a), Items 5 and 6; it shall set forth the tests performed in accordance with Sections 12-72-103 (a) through (g) and the results thereof; and shall verify the correctness of the electrical rating required by Section 12-72-107.
(b) Listed devices. Electrical wiring, material, devices, combination of devices, fittings, appliances and equipment which have been tested and listed by an approved listing agency for the intended purpose and use need not be individually retested.
The report shall include the catalog number or other readily identifiable marking, the name of the approved listing agency, the laboratory test report number and date. Such individually tested and listed component parts and devices when installed in combination with other devices in a control unit or in a circuit extended from such control unit shall be subjected to the performance standard tests to determine its suitability for use in combination with other component parts, devices, circuits or equipment.
(c) Listed control units. Control units which by their design are intended to fully comply with the Standard for the Installation, Maintenance and Use of Proprietary, Auxiliary, Remote Station and Local Protective Association may be investigated and tested in accordance with the Standards for Safety established by Underwriters’ Laboratories, Inc., U.L. 864, provided such investigation, test and report incorporates the provisions of the California Electrical Code.
(d) Rejection for cause. Compliance with these standards will not necessarily mean approval and listing, if, when examined and tested, it is found to have other features which may impair the result intended by these regulations. Unusual constructions may require application of additional performance tests. The State Fire Marshal may refuse to approve any item for cause.
(e) Systems only. The standard applies to protective signaling systems as defined in the California Electrical Code, and systems or systems components for which application for approval and listing has been filed under the provisions of the California Electrical Code.
This standard does not cover manual stations, automatic detectors, automatic transmitters or other actuating devices; nor does it cover separately listed bells, registers or other indicating devices which are not provided as a part of the control unit or matched against the output of sound-reproducing equipment.
(f) Differing constructions. A control unit having materials or forms of construction differing from this standard may be investigated and tested according to the intent of this standard, and if found to be substantially equivalent may be given recognition for approval and listing. The office of the State Fire Marshal shall be consulted for general requirements and performance standards.
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PROTECTIVE SIGNALING SYSTEMS
GENERAL
Sec. 12-72-102.
(a) **Investigation—Report.
CRSC § 12-16 Medium relevance — show source text
CALIFORNIA STANDARD FOR RESIDENTIAL EXCESS FLOW ACTUATED AUTOMATIC GAS SHUTOFF VALVES (SEE CCR TITLE 24, PART 5, CHAPTER 12) STANDARD 12-16-2
DIVISION OF THE STATE ARCHITECT
Authority: Sections 19200–19204, Health and Safety Code. Reference: Sections 19201.5 and 19202, Health and Safety Code.
DIVISION 1—CONSTRUCTION
SCOPE
Sec. 12-16-201. The American Society for Testing and Materials (ASTM) F2138-12(2017) Standard Specification for Excess Flow Valves for Natural Gas Service, and the American National Standards Institute (ANSI) Z21.93-2017/CSA 6.30-2017 Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig, shall be the applicable standards used by the Division of the State Architect for certification of these devices.
Sec. 12-16-201.1. Each installation of a customer-owned device that satisfies this standard shall be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
2025 CALIFORNIA REFERENCED STANDARDS CODE 103
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
104 2025 CALIFORNIA REFERENCED STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
12-31C RADIATION SHIELDING STANDARDS
STANDARD 12-31C-1
DEPARTMENT OF HEALTH SERVICES
Authority: Sections 102, 208 and 25811.
Reference: Sections 102, 208 and 436.5.
ALL HEALING ARTS X-RAY INSTALLATIONS
Sec. 12-31C-101. All radiation shielding barriers in rooms and enclosures housing radiation machines shall comply with the mandatory standards and appendices in Report No. 35, “Dental X-RAY Protection”; Report 49, “Structural Shielding Design and Evaluation for Medical use of X-rays and Gamma Rays of Energies up to 10 MeV”; and Report No. 51, “Radiation Protection Design Guidelines for 0.1-100 MeV Particle Accelerator Facilities.” Published by the National Council on Radiation Protection and Measurements, 7910 Woodmont Avenue, Bethesda, Maryland 20814.
2025 CALIFORNIA REFERENCED STANDARDS CODE 105
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
106 2025 CALIFORNIA REFERENCED STANDARDS CODE
on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.
12-71 AIR FILTERS
STANDARD 12-71-1
STATE FIRE MARSHAL
DESCRIPTION OF TEST APPARATUS, METHOD AND CLASSIFICATION REQUIREMENTS FOR AIR FILTERS
Sec. 12-71-100.
(a) Test apparatus.
- The test duct, made of M.S. gage galvanized sheet metal reinforced with angle irons, is 21 inches square (13 548 mm [2] ) and 13 [1] / 2 feet (4114 mm) long.
CRSC § 809.0 Medium relevance — show source text
809.0, E 501.8 DUCTILE IRON PIPE . . . . . . . . . . . . . . .Table 604.1, 605.4 DURHAM SYSTEM, DEFINITION . . . . . . . . . . . . . . . .206.0
– E –
EARTHQUAKE-ACTUATED GAS
SHUTOFF VALVES . . . . . . . . . . . . . . . . . . . . . . . . . .1211.8
EFFECTIVE GROUND-FAULT
CURRENT PATH, DEFINITION . . . . . . . . . . . . . . . . .207.0
EFFECTIVE OPENING . . . . . . . . . . . . .207.0, Table 603.3.1
EJECTORS . . . . . . . . . . . . . . . . . . . . . . . . . . .710.2 – 710.5,
710.9 – 710.12
EMERGENCY EYEWASH AND
SHOWER EQUIPMENT . . . . . . . . . . . . . . . . . . . . . .416.0
EMERGENCY SANITARY DRAINAGE . . . . . . . . . . . . . .727.0
ENFORCING AGENCY, DEFINITION . . . . . . . . . . . . . . . 207.0
ESSENTIAL PLUMBING PROVISIONS . . . . . . . . . . . . .321.0
EXCAVATIONS . . . . . . . . . . . . . . . . .314.0, 1203.2, 1504.4,
H 301.1, H 701.4
EXCESSIVE WATER PRESSURE . . . . . . . . . . . . . . . .608.2
EXPANSION AND CONTRACTION
OF PIPE, PROVISION FOR . . . . . . . . . . . . . . . . . . .312.2
EXPANSION TANKS . . . . . . . . . . . . . . . . . . . . .608.2, 608.3
– F –
F RATING . . . . . . . . . . . . . . .208.0, 1404.3, 1405.3, 1406.4
FAUCETS
Approved standards . . . . . . . . . . 417.1, 417.4, L 402.5.1
Common and Public Use Area . . . . . . . . . . . . . . 407.2.3
Kitchen . . . . . . . . . . . . . . . . . . . . . . . . . 420.2.1, 420.2.2
Maximum flow rate. . . . . . . . . . . . . . . . . . . 407.2, 420.2,
L 402.4, L 402.5
Metering. . . . . . . . . . . . . . . . . . 407.2.4, 407.2.4.1, 407.4,
CRSC § 25.4 Medium relevance — show source text
6)|100|12|12|14|16|19|21|26|30|35|16|18|21|24|26|29|34|39|45| |ASTM D1863
(No. 6)|150|12|14|17|19|22|24|29|34|39|18|21|23|26|29|32|37|43|48| |For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s.
a. Parapet height is measured vertically from the top surface of the coping down to the surface of the roof covering in the field of the roof adjacent to the parapet and outbound
of any cant strip.
b. Interpolation shall be permitted for wind speed, mean roof height and parapet height. Extrapolation is not permitted.
c. Basic wind speed,V, and wind exposure shall be determined in accordance with Section 1609.
d. Where the minimum required parapet height is indicated to be 2 inches (51 mm), a gravel stop shall be permitted and shall extend not less than 2 inches (51 mm) from the roof
surface and not less than the height of the aggregate.
e. The tabulated values apply only to conditions where the topographic factor (Kzt) determined in accordance with Chapter 26 of ASCE 7 is 1.0 or where_Kzt_ is incorporated in the
basic wind speed in Section 1609.
f. For Exposure D, add 8 inches (203 mm) to the parapet height required for Exposure C and the parapet height shall not be less than 12 inches (305 mm).|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s.
a. Parapet height is measured vertically from the top surface of the coping down to the surface of the roof covering in the field of the roof adjacent to the parapet and outbound
of any cant strip.
b. Interpolation shall be permitted for wind speed, mean roof height and parapet height. Extrapolation is not permitted.
c. Basic wind speed,V, and wind exposure shall be determined in accordance with Section 1609.
d. Where the minimum required parapet height is indicated to be 2 inches (51 mm), a gravel stop shall be permitted and shall extend not less than 2 inches (51 mm) from the roof
surface and not less than the height of the aggregate.
e. The tabulated values apply only to conditions where the topographic factor (Kzt) determined in accordance with Chapter 26 of ASCE 7 is 1.0 or where_Kzt_ is incorporated in the
basic wind speed in Section 1609.
f. For Exposure D, add 8 inches (203 mm) to the parapet height required for Exposure C and the parapet height shall not be less than 12 inches (305 mm).|For SI: 1 inch = 25.4 mm, 1 foot = 304.8 mm, 1 mile per hour = 0.447 m/s.
a. Parapet height is measured vertically from the top surface of the coping down to the surface of the roof covering in the field of the roof adjacent to the parapet and outbound
of any cant strip.
b. Interpolation shall be permitted for wind speed, mean roof height and parapet height.
Frequently asked questions
Who decides whether a specific product is acceptable?
The State Architect (Division of the State Architect) evaluates and certifies devices against ANSI/ASCE/SEI 25-16 as required by § 12-16-101.
If a device passes the manufacturer’s tests but is not DSA‑listed, is it allowed?
No—certification for DSA acceptance must be to ANSI/ASCE/SEI 25-16; uncertified devices may be prohibited by local ordinance (see Cal. Plumbing Code § 1211.8).
Does the CRSC set installation details?
No—the CRSC designates the certification standard. Installation requirements are in the California Plumbing Code and local ordinances; see § 12-16-101.1 and Cal. Plumbing Code § 1211.8.
Are excess‑flow valves covered by the same ASCE standard?
No—residential excess‑flow devices are referenced separately (e.g., ASTM F2138 and ANSI Z21.93) under § 12-16-201.
Where can I find the ASCE standard referenced by the CRSC?
The CRSC names ANSI/ASCE/SEI 25-16 in § 12-16-101; obtain the full ASCE standard from ASCE or an authorized standards distributor for test/performance details.
More in California Referenced Standards Code
- Administration and scope — CRSC Chapter 12 overview
- Air filter standards (Chapter 12‑71)
- Building and facility access / accessibility standards (Chapters 12‑11A, 12‑11B)
- Engineering regulations — quality and design of construction materials (12‑16 series)
- Exits and means of egress (Chapters 12‑10 series)
- Protective signaling systems and detectors (Chapters 12‑72‑1, ‑2, ‑3)
- Radiation shielding standards (Chapter 12‑31C)
- Referenced standards index / cross‑reference table (Part 12 listing of referenced standards)
- Releasing systems for security bars (egress-release standards)
- Standards for insulating materials (Chapter 12‑13)
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