CRSC · California Referenced Standards Code

What referenced standards govern residential excess-flow automatic gas shutoff valves?

The CRSC (§ 12-16-201) requires residential excess‑flow gas shutoff valves to be certified to ASTM F2138‑12(2017) or ANSI Z21.93‑2017/CSA 6.30‑2017 (for gas up to 5 psig); installations of customer‑owned certified devices must follow the California Plumbing Code per § 12-16-201.1.

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Last reviewed: July 6, 2026

What the code requires — 2–4 sentences

The California Referenced Standards Code requires that residential excess-flow actuated automatic gas shutoff valves (EFVs) be certified to ASTM F2138-12(2017) or ANSI Z21.93-2017/CSA 6.30-2017 for service at pressures up to 5 psig, and that the Division of the State Architect use those standards for device certification. This requirement is stated in § 12-16-201. Installations of customer‑owned devices that meet that certification must be performed in accordance with the California Plumbing Code (CCR Title 24, Part 5) per § 12-16-201.1.

The single most important rule: use only devices certified to ASTM F2138-12(2017) or ANSI Z21.93-2017/CSA 6.30-2017 for residential excess-flow valves serving gas at pressures up to 5 psig (per § 12-16-201).

Requirements in detail

Applicable standards and scope (what the CRSC says)

  • The CRSC names two specific standards as the certification standards for residential excess-flow devices: ASTM F2138-12(2017) and ANSI Z21.93-2017/CSA 6.30-2017. The Division of the State Architect shall use those standards for certification. § 12-16-201.
  • The ANSI document is explicitly limited in the CRSC to devices for natural and LP gas with pressure up to 5 psig; that 5 psig threshold is part of the CRSC identification of the ANSI standard. § 12-16-201.

Installation ⇢ compliance pathway

  • The CRSC delegates installation requirements for customer‑owned EFVs to the California Plumbing Code (CCR Title 24, Part 5): § 12-16-201.1 requires installations be in accordance with that Code. § 12-16-201.1.
  • The California Plumbing Code and California Mechanical Code also reference/list EFVs and require that automatic excess‑flow valves be listed in accordance with ANSI Z21.93/CSA 6.30 and be sized/installed per manufacturer instructions (see Plumbing Code ¶1209.1 / Mechanical Code ¶1309.1).

Who certifies / enforces

  • The CRSC text explicitly assigns the Division of the State Architect responsibility for certification using the two named standards. § 12-16-201.

Table — decision‑relevant dimensions

Decision factor What to check Value / requirement Code Reference
Certification standards to accept Device must be certified for residential excess‑flow use ASTM F2138-12(2017); ANSI Z21.93-2017/CSA 6.30-2017 § 12-16-201
Pressure scope named in CRSC Maximum gas pressure covered by the ANSI standard as cited Up to 5 psig § 12-16-201
Installation authority Where installation requirements are contained California Plumbing Code (CCR Title 24, Part 5) — must follow it § 12-16-201.1
Listing/installation expectations in building codes Listing and sizing requirement referenced by building codes EFV shall be listed in accordance with ANSI Z21.93/CSA 6.30; sized/installed per manufacturer California Plumbing Code §1209.1; California Mechanical Code §1309.1
Certification authority Agency that uses the standards for certification Division of the State Architect § 12-16-201

Exceptions & special cases

  • The CRSC text itself does not list installation exemptions or siting rules; it only prescribes the two certification standards and points installations to the California Plumbing Code. For installation exceptions or detailed siting/sizing rules you must consult the Plumbing/Mechanical Code language and the device manufacturer instructions as referenced by § 12-16-201.1 and Plumbing/Mechanical Code sections. § 12-16-201.1; Plumbing Code §1209.1.
  • The CRSC identifies the ANSI standard limit of 5 psig. The CRSC does not provide certification guidance for EFVs intended for service above 5 psig; the code text does not cover higher‑pressure EFVs. § 12-16-201.

If you need performance test procedures, sizing formulas, or installation details (timing, placement on service line, required flow thresholds to trip the valve), those are contained in the underlying standards (ASTM/ANSI) and in the Plumbing/Mechanical Code and utility/pipe operator rules — the CRSC itself does not reproduce those specifics. The CRSC references the standards for certification only.

Common mistakes

  • Assuming the CRSC contains installation/specification detail — it does not; it names the certification standards and defers installation to the California Plumbing Code. § 12-16-201 and § 12-16-201.1.
  • Using a device listed only to a non‑referenced standard (or an older/revoked edition) — the CRSC names specific editions (e.g., ASTM F2138-12(2017) / ANSI Z21.93-2017/CSA 6.30-2017) and the Division of the State Architect uses those standards for certification. § 12-16-201.
  • Mixing up earthquake‑actuated shutoff devices with excess‑flow shutoff valves — the CRSC treats those separately (see earthquake‑actuated device standard in Chapter 12‑16‑1). Consult the correct subsection for the device type.
  • Ignoring the 5 psig scope listed with the ANSI standard — devices intended for higher pressures are not within the CRSC‑named ANSI standard scope. § 12-16-201.

Worked example — concrete scenario

Scenario: A homeowner wants to install a customer‑owned EFV on a single‑family meter where downstream working pressure is 4.5 psig and the homeowner will hire a licensed plumber to install the device.

Step 1 — Certification check: Verify the intended EFV is certified to ASTM F2138-12(2017) or ANSI Z21.93-2017/CSA 6.30-2017. The CRSC requires those standards for residential EFV certification. § 12-16-201.

Step 2 — Pressure scope: Because the service pressure is 4.5 psig (≤ 5 psig), the ANSI standard cited in the CRSC covers that pressure range. § 12-16-201.

Step 3 — Installation rules: The installation must be performed in accordance with the California Plumbing Code (CCR Title 24, Part 5) and the EFV must be installed per the manufacturer’s instructions and any listing requirements specified in the Plumbing/Mechanical Code (e.g., listed in accordance with ANSI Z21.93/CSA 6.30). § 12-16-201.1; Plumbing Code §1209.1.

Result: If the device bears the appropriate certification/listing and is installed per the Plumbing Code and manufacturer instructions, the installation complies with the CRSC certification/installation pathway in § 12-16-201 and § 12-16-201.1.

Related provisions

  • § 12-16-201 — California standard referencing ASTM F2138-12(2017) and ANSI Z21.93-2017/CSA 6.30-2017 for residential excess‑flow valves.
  • § 12-16-201.1 — Installation of customer‑owned devices must be in accordance with the California Plumbing Code (CCR Title 24, Part 5).
  • § 12-16-101 — California standard for earthquake‑actuated automatic gas shutoff devices (related but distinct subject).
  • California Plumbing Code — § 1209.1 (in CCR Title 24, Part 5) — plumbing code requirement that EFVs be listed in accordance with ANSI Z21.93/CSA 6.30 and installed per manufacturers’ instructions.
  • California Mechanical Code — § 1309.1 — mechanical code cross‑reference requiring listed EFVs per ANSI Z21.93/CSA 6.30.

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

    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

    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.

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    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.

    1. 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 § 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 § 93.3 High relevance — show source text

    A-93.3

    Publication Date: 10/20/2021 Effective Date: 01/01/2022 Rev. 9c

    Purpose and Scope

    This gas design standard (GDS) provides specifications and design information for selecting and installing polyethylene (PE) and steel excess flow valves (EFVs).

    1 General Information

    1.1. EFVs are manufactured in accordance with American Society for Testing and Materials (ASTM International) F2138, “Standard Specification for Excess Flow Valves for Natural Gas Service,” and ASTM F1802, “Standard Test Method for Performance Testing of Excess Flow Valves.”

    1.2. Only personnel qualified as described in GDS D-34, “Qualifications for Joining Polyethylene Pipe,” may install a plastic EFV.

    1.3. Only personnel qualified as described in applicable welding procedures may install a steel EFV.

    1.4. See Appendix C for an EFV installation and replacement matrix.

    1.5. Exceptions to the guidelines listed in this GDS may be granted by Standards Engineering.

    2 Applications for EFVs

    2.1. Table 1 describes when EFVs must be installed on new, replaced, repaired, altered, and transferred service lines, except as noted in Step 2.2.

    A. In certain scenarios an EFV is required only when there is a new complete service line or new stub service. This does not include repairs, alterations, replacements, or stub completions. It is recommended to install an EFV on existing or replaced services or stub completions, where practical (e.g., installing an EFV would not require upsizing the existing service).

    Table 1. Required EFV Scenarios

    Service Type Total Connected Load in Standard Cubic Feet
    per Hour (scfh)    		 Col3
    Service Type 0–1400 1401–5000
    Single or branched service to single-family
    residence(s)1
    		EFV required EFV required
    Single or branched service to multifamily building(s)1 EFV required EFV required for new service line2
    Branched service to single-family residence and
    multifamily building1    		 EFV required EFV required for new service line2
    Single service to single commercial meter EFV required EFV required for new service line2
    Any other service line (single or branched)

    		 EFV required for new
    service line2
    		EFV required for new service line2
    1. Step 6.2, “Branched Service Lines” describes appropriate EFV locations on branches.
    2. Step 2.1.A provides an explanation on what is a new service line.

    Printed copies of this document might be out of date. The Technical Information Library (TIL) has the current version.

    PG&E Internal Information “PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation.

    ©2021 Pacific Gas and Electric Company. All rights reserved.

    Page 1 of 19

    Excess Flow Valves A-93.3

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    2.2. An EFV is not required in the following situations:

  • 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 § 93.3 High relevance — show source text

    Printed copies of this document might be out of date. The Technical Information Library (TIL) has the current version.

    Page 12 of 19 “PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation.

    ©2021 Pacific Gas and Electric Company. All rights reserved.

    PG&E Internal Information

    Excess Flow Valves A-93.3

    Publication Date: 10/20/2021 Effective Date: 01/01/2022 Rev. 9c

    Target Audience

    Gas distribution engineering and estimating personnel, maintenance and construction personnel, general construction personnel, contractors, applicant designers, and inspectors.

    Definitions

    Branch service line A gas service line that is not directly connected to a gas main but has another service line as its source of supply.

    Farm tap regulator set A pressure regulator set, including both single and multiple stages of pressure regulation, that controls pressure to a service line.

    Nominal operating pressure (NOP)

    The operating pressure of a system that is generally the set point of the working regulator.

    Total connected load Total demand of all gas appliances operating simultaneously and at full capacity.

    Compliance Requirement / Regulatory Commitment

    Code of Federal Regulations (CFR) Title 49, Transportation, Part 192—Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, Section 192.381, “Service lines: Excess flow valve performance standards.”

    Code of Federal Regulations (CFR) Title 49, Transportation, Part 192—Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, Section 192.383, “Excess flow valve installation.”

    Records and Information Management:

    Information or records generated by this procedure must be managed in accordance with the Enterprise Records and Information (ERIM) Policy, Standards and Enterprise Records Retention Schedule (ERRS). Refer to GOV-7101S, “Enterprise Records and Information Management Standard,” and related standards. Management of records includes, but is not limited to:

    • Integrity

    • Storage

    • Retention and Disposition

    • Classification and Protection

    Printed copies of this document might be out of date. The Technical Information Library (TIL) has the current version.

    PG&E Internal Information “PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation.

    ©2021 Pacific Gas and Electric Company. All rights reserved.

    Page 13 of 19

    Excess Flow Valves A-93.3

    Publication Date: 10/20/2021 Effective Date: 01/01/2022 Rev. 9c

    References

    American Society for Testing and Materials (ASTM International) A53, “Standard Specification for Pipe, Steel, Black and Hot-Dipped, Zinc-Coated, Welded and Seamless”

    American Society for Testing and Materials (ASTM International) F1802, “Standard Test Method for Performance Testing of Excess Flow Valves”

    American Society for Testing and Materials (ASTM International) F2138, “Standard Specification for Excess Flow Valves for Natural Gas Service”

    Gas Design Standard A-34, “Piping Test Design Requirements”

    Gas Design Standard A-38, “Purging Gas Facilities”

    Gas Design Standard A-42, “Standard Branch Service Installation”

    Gas Design Standard A-43.2, “Curb Valves”

    Gas Design Standard D-34, “Qualifications for Joining Polyethylene Pipe”

    Gas Design Standard H-10, “High-Pressure Regulator-Type Stations and Farm Tap Regulator Sets”

  • CRSC § 5.9.2 High relevance — show source text

    (1) Check valves.

    (2) Three-way valves (of the type that completely closes one side before starting to open the other side).

    (3) Reverse flow indicators controlling positive shutoff valves.

    (4) Normally closed air-actuated positive shutoff pressure regulators. [NFPA 54:5.9.2] 1308.11 Low-Pressure Protection. A protective device shall be installed between the meter and the appliance or equipment if the operation of the appliance or equipment is such that it could produce a vacuum or a dangerous reduction in gas pressure at the meter. Such protective devices include, but are not limited to, mechanical, diaphragm-operated, or electrically operated low-pressure shutoff valves. [NFPA 54:5.10]

    1308.12 Shutoff Valves. Shutoff valves shall be selected in

    accordance with Table 1308.12. Shutoff valves of size 1 inch

    (25 mm) National Pipe Thread and smaller shall be listed and labeled. Where used outdoors, such use shall be in accordance with the manufacturer’s recommendation. [NFPA 54:5.11]

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    FUEL GAS PIPING

    Exceptions: (1) A regulator and vent limiting means combination listed as complying with CSA/ANSI Z21.80/CSA 6.22, shall not be required to be vented to the outdoors.

    (2) A listed gas appliance regulator factory equipped with a vent limiting device is not required to be vented to the outdoors.

    (2) Materials for vent piping shall be in accordance with Section 1308.4 through Section 1308.4.10.5. (3) The vent terminus shall be designed to prevent the entry of water, insects, and other foreign matter that could cause blockage. (4) Vent piping shall be installed to minimize static loads and bending moments placed on the regulators and gas pressure control devices.

    (5) Vents shall terminate not less than 3 feet (914 mm) from a possible source of ignition. (6) At locations where a vent termination could be submerged during floods or snow accumulations, an antiflood-type breather vent fitting shall be installed, or the vent terminal shall be located above the height of the expected floodwaters or snow.

    (7) Vent piping from pressure regulators and gas pressure controls shall not be connected to a common manifold that serves a bleed line from a diaphragm-type gas valve.

    [NFPA 54:5.14]

    1309.0 Excess Flow Valve.

    1309.1 General. Where automatic excess flow valves are installed, they shall be listed in accordance with ANSI Z21.93/CSA 6.30 and shall be sized and installed in accordance with the manufacturers’ instructions. [NFPA 54:5.12]

    1310.0 Gas Piping Installation. 1310.1 Piping Underground. Underground gas piping shall be installed with sufficient clearance from any other underground structure to avoid contact therewith, to allow maintenance, and to protect against damage from proximity to other structures. Underground plastic piping shall be installed with sufficient clearance or shall be insulated from any source of heat so as to prevent the heat from impairing the serviceability of the pipe.

  • CRSC § 69-2015 High relevance — show source text

    69-2015/CSA
    6.16-2015 (R2020)|Connectors for Moveable Gas Appliances|Fuel Gas|1212.1.2| |ANSI Z21.75-2016/CSA
    6.27-2016|Connectors for Outdoor Gas Appliances and Manufactured
    Homes|Fuel Gas|1212.1(4)| |CSA/ANSI Z21.80-
    2019/CSA 6.22-2019|Line Pressure Regulators|Fuel Gas|1208.7.1, 1208.15| |CSA/ANSI Z21.90-
    2019/CSA 6.24-2019|Gas Convenience Outlets and Optional Enclosures|Fuel Gas|1212.8| |ANSI Z21.93-2017/CSA
    6.30-2017|Excess Flow Valves for Natural Gas and Propane Gas with
    Pressures up to 5 psig|Fuel Gas|1209.1| |DOE|DOE|DOE|DOE| |DOE-STD-3020-2015|HEPA Filters Used by DOE Contractors|Miscellaneous|1312.4(3)| |IAPMO|IAPMO|IAPMO|IAPMO| |ANSI/CAN/ASSE/IAPMO
    1055-2020|Chemical Dispensers with Integral Backflow Protection|Backflow Protection|Table 603.2,
    603.5.22| |ASSE/IAPMO/ANSI Series
    5000-2015|Cross-Connection Control Professional Qualifications Standard|Certification|603.2, 603.4.2| |ASSE/IAPMO/ANSI 6010-
    2021|Medical Gas Systems Installers|Certification|1323.10|

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    REFERENCED STANDARDS

    TABLE 1701.1 (continued) REFERENCED STANDARDS

    STANDARD NUMBER STANDARD TITLE APPLICATION REFERENCED
    SECTION
    ASSE/IAPMO/ANSI 6020-
    2021    		 Medical Gas Systems Inspectors Miscellaneous 1324.5.4.7,
    1324.5.6.2, 1324.5.6.5
    ASSE/IAPMO/ANSI 6030-
    2021    		 Medical Gas Systems Verifiers Miscellaneous 1324.5.4.7,
    1324.5.6.2,
    1324.5.6.5,
    1324.5.7.2
    ASSE/IAPMO/ANSI 6035-
    2021    		 Bulk Medical Gas/Cryogenic Fluid Central Supply Systems
    Verifiers    		 Miscellaneous 1324.5.7.3
    ASSE/IAPMO/ANSI Series
    7000-2020    		 Residential Potable Water Fire Sprinkler System Installers &
    Inspectors for One- and Two-Family Dwellings    		 Miscellaneous 612.1
    ASSE/IAPMO/ANSI
    12010-2021    		 Environment of Care,
  • CRSC § 1208.14.1 High relevance — show source text

    1208.14.1 Special Local Conditions. Where local conditions include earthquake, tornado, unstable ground, or flood hazards, special consideration shall be given to increased strength and flexibility of piping supports and connections. [NFPA 54:5.13.2]

    1208.15 Pressure Regulator and Pressure Control Venting. The venting of the atmospheric side of diaphragms in line pressure regulators, gas appliance regulators, and gas pressure limit controls shall be in accordance with all of the following:

    (1) An independent vent pipe to the outdoors, sized in accordance with the device manufacturer’s instructions, shall be provided where the location of a device is such that a discharge of fuel gas will cause a hazard. For devices other than appliance regulators, vents are not required to be independent where the vents are connected to a common manifold designed in accordance with engineering methods to minimize backpressure in the event of diaphragm failure and such design is approved.

    Exceptions:

    (1) A regulator and vent limiting means combination listed as complying with CSA/ANSI Z21.80/CSA 6.22, shall not be required to be vented to the outdoors.

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    FUEL GAS PIPING

    (2) A listed gas appliance regulator factory equipped with a vent limiting device is not required to be vented to the outdoors.

    (2) Materials for vent piping shall be in accordance with Section 1208.5 through Section 1208.5.12.5.

    (3) The vent terminus shall be designed to prevent the entry of water, insects, and other foreign matter that could cause blockage.

    (4) Vent piping shall be installed to minimize static loads and bending moments placed on the regulators and gas pressure control devices.

    (5) Vents shall terminate not less than 3 feet (914 mm) from a possible source of ignition.

    (6) At locations where a vent termination could be submerged during floods or snow accumulations, an antiflood-type breather vent fitting shall be installed, or the vent terminal shall be located above the height of the expected flood waters or snow.

    (7) Vent piping from pressure regulators and gas pressure controls shall not be connected to a common manifold

    that serves a bleed line from a diaphragm-type gas valve.

    [NFPA 54:5.14]

    TABLE 1208.13

    MANUAL GAS VALVE STANDARDS

    [NFPA 54: TABLE 5.11]

    1209.0 Excess Flow Valve.

    1209.1 General. Where automatic excess flow valves are installed, they shall be listed in accordance with ANSI Z21.93/CSA 6.30 and shall be sized and installed in accor dance with the manufacturers’ instructions. [NFPA 54:5.12]

    1210.0 Gas Piping Installation.

  • CRSC § 1308.4 High relevance — show source text

    (2) Materials for vent piping shall be in accordance with Section 1308.4 through Section 1308.4.10.5. (3) The vent terminus shall be designed to prevent the entry of water, insects, and other foreign matter that could cause blockage. (4) Vent piping shall be installed to minimize static loads and bending moments placed on the regulators and gas pressure control devices.

    (5) Vents shall terminate not less than 3 feet (914 mm) from a possible source of ignition. (6) At locations where a vent termination could be submerged during floods or snow accumulations, an antiflood-type breather vent fitting shall be installed, or the vent terminal shall be located above the height of the expected floodwaters or snow.

    (7) Vent piping from pressure regulators and gas pressure controls shall not be connected to a common manifold that serves a bleed line from a diaphragm-type gas valve.

    [NFPA 54:5.14]

    1309.0 Excess Flow Valve.

    1309.1 General. Where automatic excess flow valves are installed, they shall be listed in accordance with ANSI Z21.93/CSA 6.30 and shall be sized and installed in accordance with the manufacturers’ instructions. [NFPA 54:5.12]

    1310.0 Gas Piping Installation. 1310.1 Piping Underground. Underground gas piping shall be installed with sufficient clearance from any other underground structure to avoid contact therewith, to allow maintenance, and to protect against damage from proximity to other structures. Underground plastic piping shall be installed with sufficient clearance or shall be insulated from any source of heat so as to prevent the heat from impairing the serviceability of the pipe. [NFPA 54:7.1.1.1, 7.1.1.2] 1310.1.1 Cover Requirements. Underground piping systems shall be installed with a minimum of 12 inches (305 mm) of cover. The minimum cover shall be increased to 18 inches (457 mm) if external damage to the pipe or tubing from external forces is likely to result. Where a minimum of 12 inches (305 mm) of cover cannot be provided, the piping shall be installed in conduit. [NFPA 54:7.1.2.1 – 7.1.2.1(B)]

    1310.1.2 Trenches. The trench shall be graded so that the pipe has a firm, substantially continuous bearing on the bottom of the trench. [NFPA 54:7.1.2.2]

    1310.1.2.1 Backfilling. Where flooding of the trench is done to consolidate the backfill, care shall be exer

    cised to see that the pipe is not floated from its firm bearing on the trench bottom. [NFPA 54:7.1.2.3]

    1310.1.3 Protection Against Corrosion. Steel pipe and steel tubing installed underground shall be installed in accordance with Section 1310.1.3.1 through Section 1310.1.3.9. [NFPA 54:7.1.3]

  • CRSC § 1208.5 High relevance — show source text

    FUEL GAS PIPING

    (2) A listed gas appliance regulator factory equipped with a vent limiting device is not required to be vented to the outdoors.

    (2) Materials for vent piping shall be in accordance with Section 1208.5 through Section 1208.5.12.5.

    (3) The vent terminus shall be designed to prevent the entry of water, insects, and other foreign matter that could cause blockage.

    (4) Vent piping shall be installed to minimize static loads and bending moments placed on the regulators and gas pressure control devices.

    (5) Vents shall terminate not less than 3 feet (914 mm) from a possible source of ignition.

    (6) At locations where a vent termination could be submerged during floods or snow accumulations, an antiflood-type breather vent fitting shall be installed, or the vent terminal shall be located above the height of the expected flood waters or snow.

    (7) Vent piping from pressure regulators and gas pressure controls shall not be connected to a common manifold

    that serves a bleed line from a diaphragm-type gas valve.

    [NFPA 54:5.14]

    TABLE 1208.13

    MANUAL GAS VALVE STANDARDS

    [NFPA 54: TABLE 5.11]

    1209.0 Excess Flow Valve.

    1209.1 General. Where automatic excess flow valves are installed, they shall be listed in accordance with ANSI Z21.93/CSA 6.30 and shall be sized and installed in accor dance with the manufacturers’ instructions. [NFPA 54:5.12]

    1210.0 Gas Piping Installation.

    1210.1 Piping Underground. Underground gas piping shall be installed with sufficient clearance from any other underground structure to avoid contact therewith, to allow maintenance, and to protect against damage from proximity to other structures. Underground plastic piping shall be installed with sufficient clearance or shall be insulated from any source of heat so as to prevent the heat from impairing the serviceability of the pipe. [NFPA 54:7.1.1.1 – 7.1.1.2]

    1210.1.1 Cover Requirements. Underground piping systems shall be installed with a minimum of 12 inches (305 mm) of cover. The minimum cover shall be increased to 18 inches (457 mm) if external damage to the pipe or tubing from external forces is likely to result. Where a minimum of 12 inches (305 mm) of cover cannot be provided, the piping shall be installed in conduit.

    [NFPA 54:7.1.2.1 – 7.1.2.1(B)]

    1210.1.2 Trenches. The trench shall be graded so that the pipe has a firm, substantially continuous bearing on the bottom of the trench. [NFPA 54:7.1.2.2]

    1210.1.2.1 Backfilling. Where flooding of the trench is done to consolidate the backfill, care shall be exercised to see that the pipe is not floated from its firm bearing on the trench bottom. [NFPA 54:7.1.2.3]

    1210.1.3 Protection Against Corrosion. Steel pipe and steel tubing installed underground shall be installed in accordance with Section 1210.1.3.1 through Section 1210.1.3.9. [NFPA 54:7.1.3]

  • 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:

    1. Amendment filed 8-10-81; designated effective 9-22-81 (Register 81, No. 33).
    2. 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:

    1. 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 § 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||

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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.

Frequently asked questions

Who decides whether a particular EFV model is acceptable under the CRSC?

The Division of the State Architect uses ASTM F2138-12(2017) and ANSI Z21.93-2017/CSA 6.30-2017 as the certification standards for residential EFVs per § 12-16-201.

Does the CRSC itself tell me where to physically install the EFV on my service line?

No. § 12-16-201 names certification standards; § 12-16-201.1 directs that installations follow the California Plumbing Code, which (along with manufacturer instructions) contains the installation details.

What if my service pressure is above 5 psig?

The ANSI standard named in the CRSC is specified for service up to 5 psig; the CRSC text does not provide certification guidance for higher pressures. Consult the referenced standards, the Plumbing/Mechanical Code, and the certifying authority for devices intended for higher pressures. § 12-16-201.

Are the ASTM/ANSI editions fixed or may later editions be accepted?

The CRSC cites the specific editions in the Code language. For changes (later editions or amendments) you must refer to the Division of the State Architect certification practice or official CRSC updates; the CRSC text itself names the editions used for certification. § 12-16-201.

Where else should I look for detailed test methods and performance criteria?

The ASTM and ANSI/CSA standards themselves contain test methods and performance criteria (the CRSC references those documents for certification). Installation and sizing details also appear in the California Plumbing and Mechanical Codes and in utility/operator procedures. § 12-16-201; Plumbing Code §1209.1.

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