CRSC · California Referenced Standards Code

Which standards apply for certification of residential excess‑flow valves?

The CRSC (see § 12‑16‑201) requires that the Division of the State Architect use ASTM F2138‑12(2017) and ANSI Z21.93‑2017/CSA 6.30‑2017 to certify residential excess‑flow valves; installations of customer‑owned devices meeting those standards must follow the California Plumbing Code (§ 12‑16‑201.1).

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Last reviewed: July 6, 2026

What the code requires — 2-4 sentences

The Division of the State Architect requires that residential excess‑flow valves (EFVs) be certified using ASTM F2138‑12(2017) and ANSI Z21.93‑2017/CSA 6.30‑2017. This is the controlling rule in § 12‑16‑201. Installations of customer‑owned devices that meet these standards must follow the California Plumbing Code as noted in § 12‑16‑201.1.

The single most important rule: devices submitted for DSA certification must comply with the two named standards — ASTM F2138‑12(2017) or ANSI Z21.93‑2017/CSA 6.30‑2017 — per § 12‑16‑201.

Requirements in detail

Summary of the controlling text

  • The CRSC names two specific standards as the applicable certification standards: ASTM F2138‑12(2017) (Standard Specification for Excess Flow Valves for Natural Gas Service) and ANSI Z21.93‑2017/CSA 6.30‑2017 (Excess Flow Valves for Natural and LP Gas with Pressure up to 5 psig) — § 12‑16‑201.
  • Installations of customer‑owned devices that meet those standards must comply with the California Plumbing Code (CCR Title 24, Part 5) — § 12‑16‑201.1.

Decision‑relevant dimensions (quick table)

Decision dimension Value / threshold Code reference
Applicable standard — natural gas service ASTM F2138‑12(2017) § 12‑16‑201.
Applicable standard — natural & LP gas (≤ pressure limit) ANSI Z21.93‑2017/CSA 6.30‑2017 (for pressures up to 5 psig) § 12‑16‑201.
Certifying authority (uses these standards) Division of the State Architect (for certification of these devices) § 12‑16‑201.
Installation requirement for customer‑owned devices Must be in accordance with the California Plumbing Code (CCR Title 24, Part 5) § 12‑16‑201.1.
Where to find referenced ANSI listing in the plumbing code ANSI Z21.93 appears in the Plumbing Code referenced standards list Table of referenced standards in the California Plumbing Code.

What the CRSC does — and does not — say

  • It explicitly names the two standards that the Division of the State Architect will use for certification (§ 12‑16‑201).
  • It explicitly points installations to the California Plumbing Code (§ 12‑16‑201.1).
  • The CRSC text does not reproduce the test methods, pass/fail criteria, submission procedures, or administrative steps for certification — those details are in the named standards themselves (ASTM/ANSI) or in the applicable administrative procedures, not in § 12‑16‑201. If you need test method or certification process details, consult the ASTM and ANSI standards and the Division’s certification procedures.

Exceptions & special cases

  • The CRSC section does not list exceptions (no alternate standards or special‑case waivers are specified in § 12‑16‑201). The only additional direction in the CRSC is that installations of customer‑owned devices complying with these standards must follow the California Plumbing Code (§ 12‑16‑201.1).
  • For scope nuances (for example, whether a particular device is intended for LP gas vs. natural gas, or for applications above 5 psig), the CRSC points you to the named standards: use ASTM F2138 for natural gas service per its title, and ANSI Z21.93/CSA 6.30 for natural and LP gas up to 5 psig — determine applicability by comparing your device and service conditions to those standard titles and text. § 12‑16‑201 is the controlling citation.

If you need to confirm installation exceptions, permit requirements, or local enforcement decisions, consult the California Plumbing Code and the enforcing authority (building official) because § 12‑16‑201 itself does not prescribe installation exceptions.

Common mistakes

  • Assuming any EFV standard will do. The CRSC names only ASTM F2138‑12(2017) and ANSI Z21.93‑2017/CSA 6.30‑2017 for DSA certification — devices certified only to other standards may not meet the CRSC requirement in § 12‑16‑201.
  • Ignoring the 5 psig pressure limitation in the ANSI title — if the application exceeds 5 psig, the ANSI standard identified in § 12‑16‑201 is not applicable for that high‑pressure use; the CRSC does not provide an alternate standard.
  • Failing to follow the California Plumbing Code for installation of customer‑owned devices that satisfy the standard (see § 12‑16‑201.1). Certification and proper installation are distinct obligations.
  • Relying on internal utility standards alone — utilities (e.g., PG&E) may reference ASTM/ANSI and federal rules in their procedures, but the CRSC specifically names the two national standards for DSA certification (§ 12‑16‑201).

Worked example — choosing the correct standard (concrete)

Scenario: A manufacturer submits a residential EFV intended for a single‑family home gas service that uses propane (LP) and the service nominal pressure is 2.5 psig.

  1. Identify gas type and pressure: LP gas, 2.5 psig → within the “up to 5 psig” scope.
  2. Pick the named standard per § 12‑16‑201: because the device is for natural and LP gas up to 5 psig, ANSI Z21.93‑2017/CSA 6.30‑2017 is the applicable standard named by the CRSC. ASTM F2138 is identified for natural gas service; ANSI Z21.93 covers LP in the pressure band relevant here.
  3. Installation note: if the customer installs a device that meets that standard, the installation must conform to the California Plumbing Code per § 12‑16‑201.1.

(If the same device were intended for a system at 8 psig, the ANSI standard cited in § 12‑16‑201 would no longer cover the pressure — the CRSC provides no alternate; you must consult the standard bodies or the DSA for guidance.)

Related provisions (CRSC sections)

  • § 12‑16‑201 — Applicable standards for residential excess‑flow valves (main controlling section).
  • § 12‑16‑201.1 — Installation of customer‑owned devices must follow the California Plumbing Code (CCR Title 24, Part 5).
  • § 12‑16‑101 — Standard for earthquake‑actuated automatic gas shutoff devices (related CRSC standard in same 12‑16 series).
  • § 12‑16‑101.1 — Installation note for devices complying with the earthquake standard (installation reference to plumbing code) — analogous installation direction.

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.

    2025 CALIFORNIA REFERENCED STANDARDS CODE 105

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    106 2025 CALIFORNIA REFERENCED STANDARDS CODE

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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).

    2025 CALIFORNIA REFERENCED STANDARDS CODE 101

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    102 2025 CALIFORNIA REFERENCED STANDARDS CODE

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    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).

    2025 CALIFORNIA REFERENCED STANDARDS CODE 103

    on Jul 18, 2025 11:14 AM (CDT) THEREUNDER.

    104 2025 CALIFORNIA REFERENCED STANDARDS CODE

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    12-31C RADIATION SHIELDING STANDARDS

    STANDARD 12-31C-1

    DEPARTMENT OF HEALTH SERVICES

  • CRSC § 4170P-52 High relevance — show source text

    • Utility Procedure TD-4170P-52, “Mechanical Fitting Connections for Polyethylene Pipe (Threaded Compression Transitions)”

      • Utility Procedure TD-4170P-53, “Mechanical Fitting Connections for Polyethylene Pipe (Bolt-On Saddle)”

    Construction Materials

    1. Heat Fusion Fittings are listed in GDS B-90 and GDS B-90.1.

    2. Electrofusion Fittings are listed in GDS B-90.3.

    3. PE-to-PE mechanical connections are listed in the following standards:

    • GDS B-90.1

    • GDS B-91

    • GDS B-91.1

    1. Transition fittings are listed in the following standards:

    • GDS B-54, “Compression Couplings”

    • GDS B-91

    • GDS B-91.1

    1. Excess flow valves are listed in GDS A-93.3.

    2. Plastic valves are listed in GDS F-90, “Polyethylene (PE) Valves.”

    3. Prefabricated risers are listed in GDS A-91.

    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 19 of 19

    GAS DESIGN STANDARD

    EXCESS FLOW VALVES

    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

  • 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

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

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

  • 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 § 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|

    2025 CALIFORNIA PLUMBING CODE 347

    ), Copyright © 2025 IAPMO, and may not be used for any other purpose or distributed to any other persons or parties.

    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 § 603.3 High relevance — show source text

    Testing or maintenance shall be performed by a certified backflow assembly tester or repairer certified in accordance with ASSE/IAPMO/ANSI Series 5000 or any other additional certification approved by the Authority Having Jurisdiction.

    603.3 Backflow Prevention Devices, Assemblies, and Methods. Backflow prevention devices, assemblies, and methods shall comply with Section 603.3.1 through Section 603.3.12.

    603.3.1 Air Gap. The minimum air gap to afford backflow protection shall be in accordance with Table 603.3.1. 603.3.2 Atmospheric Vacuum Breaker (AVB). An atmospheric vacuum breaker consists of a body, a checking member, and an atmospheric port.

    603.3.3 Hose Connection Backflow Preventer. A hose connection backflow preventer consists of two independent check valves with an independent atmospheric vent between and a means of field testing and draining.

    603.3.4 Double Check Valve Backflow Prevention Assembly (DC). A double check valve backflow prevention assembly consists of two independently acting internally loaded check valves, four properly located test cocks, and two isolation valves.

    603.3.5 Pressure Vacuum Breaker Backflow Pre- vention Assembly (PVB). A pressure vacuum breaker backflow prevention assembly consists of a loaded air inlet valve, an internally loaded check valve, two properly located test cocks, and two isolation valves. This device shall be permitted to be installed indoors where provisions for spillage are provided. 603.3.6 Spill-Resistant Pressure Vacuum Breaker (SVB). A pressure-type vacuum breaker backflow prevention assembly consists of one check valve force loaded closed and an air inlet vent valve force loaded open to atmosphere, positioned downstream of the check valve and located between and including two tightly closing shutoff valves and test cocks. 603.3.7 Reduced-Pressure Principle Backflow Prevention Assembly (RP). A reduced-pressure principle backflow prevention assembly consists of two independently acting internally loaded check valves, a differential pressure relief valve, four properly located test cocks, and two isolation valves.

    603.3.8 Double Check Detector Fire Protection Backflow Prevention Assembly. A double check valve backflow prevention assembly with a parallel

    detector assembly consisting of a water meter and a double check valve backflow prevention assembly (DC).

    603.3.9 Reduced Pressure Detector Fire Protec- tion Backflow Prevention Assembly. A reducedpressure principle backflow prevention assembly with a parallel detector assembly consisting of a water meter and a reduced-pressure principle backflow prevention assembly (RP).

    603.3.10 Dual Check Backflow Preventer. A dual check backflow preventer consists of two independently acting check valves, force loaded to a normally closed position.

    603.3.11 Laboratory Faucet Backflow Preven- ters. Laboratory faucet backflow preventers shall comply with ASSE 1035.

    603.3.12 Backflow Preventer with Intermediate Atmospheric Vent. A backflow preventer with intermediate atmospheric vent consists of two independently acting check valves, force loaded to a normally closed position, and an intermediate chamber with a means for automatically venting to atmosphere, force loaded to a normally open position. 603.4 General Requirements. Assemblies shall comply with listed standards and be acceptable to the Authority Having Jurisdiction, with jurisdiction over the selection and installation of backflow prevention assemblies.

    **603.4.1 Backflow Prevention Valve.

  • CRSC § 10.3 High relevance — show source text

    1(1)| |CSA/ANSI Z21.10.3-
    2019/CSA 4.3-2019|Gas-Fired Water Heaters, Volume III, Storage Water Heaters
    with Input Ratings Above 75,000 Btu Per Hour, Circulating
    and Instantaneous|Fuel Gas, Appliances|Table 501.1(1)| |CSA/ANSI Z21.15-
    2021/CSA 9.1-2021|Manually Operated Gas Valves for Appliances, Appliance
    Connector Valves, and Hose End Valves|Fuel Gas|Table 1208.13| |CSA/ANSI Z21.18-
    2019/CSA 6.3-2019|Gas Appliance Pressure Regulators|Gas Pressure
    Regulators|507.20| |ANSI Z21.22-2015/CSA
    4.4-2015 (R2020)|Relief Valves for Hot Water Supply Systems|Valves|607.6, 608.7| |ANSI Z21.24-2015/CSA
    6.10-2015 (R2020)|Connectors for Gas Appliances|Fuel Gas|1212.1(3), 1212.2| |ANSI Z21.41-2014/CSA
    6.9-2014 (R2019)|Quick Disconnect Devices for Use with Gas Fuel Appliances|Fuel Gas|1212.7| |CSA/ANSI Z21.54-
    2019/CSA 8.4-2019|Gas Hose Connectors for Portable Outdoor Gas-Fired Appliances|Fuel Gas|1212.3.2| |ANSI Z21.69-2015/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.

  • CRSC § 4170P-31 Medium relevance — show source text

    • Utility Procedure TD-4170P-31, “Heat Iron Socket Fusion for Polyethylene Pipe”

      • Utility Procedure TD-4170P-33, “Heat Iron Saddle Fusion for Polyethylene Pipe (Mechanical Assist Tool)”

      • Utility Procedure TD-4170P-34, “Heat Iron Butt Fusion for Polyethylene Pipe (Mechanical)”

      • Utility Procedure TD-4170P-35, “Heat Iron Butt Fusion for Polyethylene Pipe (Hydraulic)”

      • Utility Procedure TD-4170P-40, “Electrofusion for Polyethylene Pipe (Coupling)”

      • Utility Procedure TD-4170P-41, “Electrofusion for Polyethylene Pipe (Saddle)”

      • Utility Procedure TD-4170P-42, “Electrofusion for Polyethylene Pipe (Elbow)”

    OR following approved mechanical fitting installation procedures:

    - Utility Procedure TD-4170P-50, “Mechanical Fitting Connections for Polyethylene

    Pipe (Stab Outlet)”

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

    Page 18 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

    Installing and Maintaining a Polyethylene (PE)

    A-93.1 Gas Distribution System

    Publication Date: 12/15/2021 Effective Date: 03/01/2022 Rev. 11

    Appendix A, Polyethylene Joining Method and Approved Material References

    Page 2 of 2

    3 (continued)

    - Utility Procedure TD-4170P-51, “Mechanical Fitting Connections for Polyethylene

    Pipe (Lyall Lycofit)”

    - Utility Procedure TD-4170P-52, “Mechanical Fitting Connections for Polyethylene

    Pipe (Threaded Compression Transitions)”

    - Utility Procedure TD-4170P-53, “Mechanical Fitting Connections for Polyethylene

    Pipe (Bolt-On Saddle)”

    Construction Materials

    1. Heat Fusion Fittings are listed in GDS B-90 and GDS B-90.1.

    2. Electrofusion Fittings are listed in GDS B-90.3.

    3. PE-to-PE mechanical connections are listed in the following standards:

    • GDS B-90.1

    • GDS B-91

    • GDS B-91.1

    1. Transition fittings are listed in the following standards:

    • GDS B-54, “Compression Couplings”

    • GDS B-91

    • GDS B-91.1

    1. Excess flow valves are listed in GDS A-93.3.

    2. Plastic valves are listed in GDS F-90, “Polyethylene (PE) Valves.”

    3. Prefabricated risers are listed in GDS A-91.

    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 19 of 19

    GAS DESIGN STANDARD

    EXCESS FLOW VALVES

    A-93.3

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

    Purpose and Scope

  • CRSC § 90.2 Medium relevance — show source text

    Compliance Requirement/Regulatory Commitment

    NA

    References

    Plastic Main and Service Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . A-90 Locating Wire Installation for Direct Burial Plastic Mains and Services . . . . . . . . . . . . . . . . . . . . A-90.2 Approved “Mark and Locate” Instruments, Equipment, Accessories, and Products . . . . . . . . . M-60 Gas Applicant Design Manual

    Appendices

    NA

    Attachments

    NA

    Revision Notes

    Revision 03 has the following changes:

    1. Added Notes for Replacement of Existing Branch Services and for Installation of New Branch Services.

    2. Added Notes for Subdivisions.

    3. Added Exceptions.

    4. Added Method C and D. Reversed order of A and B.

    5. This document is part of Change 66.

    Asset Type: Gas Transmission and Distribution Function: Design Document Contact: Gas Design Standard Responsibility List

    Page 4 of 4 PG&E Internal Information, SL2 © 2013 Pacific Gas & Electric Company. All Rights Reserved. Prepared by: AAJ7

    GAS DESIGN STANDARD

    CURB VALVES

    A-43.2

    Publication Date: 04/15/2020 Effective Date: 07/15/2020 Rev. 5

    Purpose and Scope

    This gas design standard (GDS) provides requirements and installation instructions for service valves installed in curb areas. Curb valves are to be installed in accordance with Code of Federal Regulations (CFR) Title 49, Transportation, Part 192—Transportation of Natural and Other Gas by Pipeline: Minimum Federal Safety Standards, Section (§) 192.385, “Manual service line shut-off valve installation.”

    1 Installation Guidelines

    1.1. Use an excess flow valve (EFV) instead of, or in addition to, a curb valve, when feasible. See GDS A-93.3, “Excess Flow Valves,” and criteria in Step 1.2 for additional information.

    1.2. Use a curb valve on every new or replaced service line when any of the following conditions exist:

    A. The total meter capacity exceeds 1000 standard cubic feet per hour, and an EFV is not required and not installed.

    (1) Valves meeting the above criteria are critical isolation valves. See Attachment 1, “Installation Guidance” for additional guidance and requirements.

  • CRSC § 7.10. Medium relevance — show source text

    7.10. Purging

    A. Gas service lines with an EFV require a slower purge velocity than the normal gas purge procedure described in GDS A-38, “Purging Gas Facilities.”

    B. Do not attempt to purge a gas main through a service that has an EFV.

    C. Confirm there is an EFV identification tag on the gas service valve, service riser, riser sun shield, or pressure regulator. If the tag is present, an EFV has already been installed on the service.

    D. Open the gas service valve very slowly and only partially.

         - If the valve is fully opened, the resulting rapid flow of gas will activate and

    trip the EFV.

         - The EFV may activate when purging to atmosphere even if the gas valve

    is opened slowly.

         - If the EFV activates during purging, shut off the gas service valve and

    wait until the pressure equalizes before attempting to continue purge.

    E. When performing service work downstream of the regulator at the meter set, avoid removing a plug or associated piping too quickly because doing so can activate the EFV.

    F. If the EFV activates, shut off the service valve and wait for the pressure to equalize. A typical EFV takes approximately 5 minutes to equalize.

    8 Customer Notification

    8.1. If a customer's service line operates at a pressure of 10 psig or greater throughout the year, PG&E must provide written or electronic notification to the customer of their right to request the installation of an EFV as specified in 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."

    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:

  • CRSC § 9500P-14 Medium relevance — show source text

    A. Complete the gas service record (GSR), per Utility Procedure TD-9500P-14, “Gas Service Records.”

    B. Add an electronic marker system (EMS) marker to the curb valve installation location. Refer to GDS M-60, “Approved Locate and Mark Instruments, Equipment, Accessories, and Products.”

    C. Map the information.

    D. Retain records per the Record Retention Schedule.

    Page 2 of 4 “PG&E” refers to Pacific Gas and Electric Company, a subsidiary of PG&E Corporation.

    ©2020 Pacific Gas and Electric Company. All rights reserved.

    PG&E Internal Information

    Curb Valves A-43.2

    Publication Date: 04/15/2020 Effective Date: 07/15/2020 Rev. 5

    Target Audience

    Personnel in the following areas: gas distribution engineering, estimating, gas maintenance and construction (M&C), general construction (GC), distribution mapping, and new business inspection personnel. Personnel involved in distribution pipeline connection training and qualification programs.

    Definitions

    Curb valve Valve installed on a service line, below grade, upstream of the riser valve.

    Replaced service line

    A gas service line where the fitting that connects the service line to the main is replaced or the piping connected to this fitting is replaced.

    Service line A distribution line that transports gas from a common source of supply to an individual customer, to two adjacent or adjoining residential or small commercial customers, or to multiple residential or small commercial customers served through a meter header or manifold. A service line ends at the outlet of the customer meter or at the connection to a customer's piping, whichever is further downstream, or at the connection to customer piping if there is no meter.

    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 192.181(c)(3), “Distribution line valves”

    49 CFR, §Section 192.361(a), “Service lines: Installation”

    49 CFR, §192.365(c), “Service lines: Location of valves”

    49 CFR, §192.383(a), “Excess flow valve installation”

    49 CFR, §192.385(b), “Manual service line shut-off valve installation”

    References

    Gas Design Standard A-90.2, “Locating Wire Installation for Plastic Mains and Services”

    Gas Design Standard A-93.3, “Excess Flow Valves”

    Gas Design Standard F-90, “Polyethylene (PE) Valves”

    Gas Design Standard K-40, “Plastic Valve Box for 3/4" − 4" Valves”

    Gas Design Standard K-40.1, “Method of Installing Concrete Curb Boxes in Concrete Sidewalk”

    Gas Design Standard K-41, “Concrete Valve Box − Street Installation on 2" to 4" Gas Mains Incl.”

    Gas Design Standard K-41.1, “Typical Installation of Traffic Valve Box on 2" to 4" Gas Mains Incl.”

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

    ©2020 Pacific Gas and Electric Company. All rights reserved.

    Page 3 of 4

    Curb Valves A-43.2

    Publication Date: 04/15/2020 Effective Date: 07/15/2020 Rev. 5

    References (continued)

Frequently asked questions

What exactly does § 12‑16‑201 require?

It requires that the Division of the State Architect use ASTM F2138‑12(2017) and ANSI Z21.93‑2017/CSA 6.30‑2017 as the applicable standards for certification of residential excess‑flow valves.

Which standard applies to LP (propane) service at 3 psig?

Per § 12‑16‑201, ANSI Z21.93‑2017/CSA 6.30‑2017 (which covers natural and LP gas up to 5 psig) is the identified standard.

If my device passed tests to a different EFV standard, is that acceptable?

Not under the CRSC text of § 12‑16‑201 — the DSA uses the two named standards for certification. You would need to confirm with DSA whether equivalency or additional evidence can be accepted.

Does § 12‑16‑201 include the test methods or pass/fail criteria?

No. § 12‑16‑201 names the standards but does not reproduce their test methods or certification procedures; consult the ASTM and ANSI standard documents for detailed test procedures.

Where must installations follow after a device is certified?

Installations of customer‑owned devices that satisfy the named standards must be installed in accordance with the California Plumbing Code (CCR Title 24, Part 5) per § 12‑16‑201.1.

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