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NFPA 52, Vehicular Natural Gas Fuel Systems Code

2023 NFPA 52 Code - Current Edition
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  • Description

    Stay up to code with the 2023 edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code, to help ensure the safe and efficient use of CNG and LNG fuel systems and mitigate fire and explosion hazards.

    With the steady rise in the use of cost-effective natural gas vehicles, it's critical to have access to the complete range of requirements for designing, installing, operating, and maintaining compressed natural gas (CNG) and liquefied natural gas (LNG) engine fuel systems and dispensing systems. The newest edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code, offers in-depth instruction for helping to safeguard people and installations in a user-friendly format that’s easy to navigate and comprehend.

    An essential for designers, engineers, maintenance professionals, facilities managers, contractors, and authorities having jurisdiction, NFPA 52 covers CNG and LNG systems on all types of vehicles and applies to facilities with LNG storage in containers of 100,000 gallons or less.

    Additional subject areas include:

    • Fuel compression, processing, storage, and dispensing systems
    • CNG residential fueling facilities (RFF-CNGs)
    • CNG nonresidential fueling facilities
    • LNG fueling facilities
    • LNG fire protection
    • Installation of ASME tanks for LNG
    • LNG and CNG on commercial marine vessels and pleasure craft

    The 2023 edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code, is consistent with CSA Group MGV 5.1 and the International Fuel Gas Code®.

    The new edition has been revised to include the following:

    • Bulk plant requirements extracted from NFPA 59A, Standard for the Production, Storage, and Handling of Liquefied Natural Gas (LNG), have been revised and in most cases are no longer extracted, since these requirements commonly do not apply to NFPA 52 installations.
    • The terms defueling and manifold have been added as defined terms in Chapter 3 to provide additional clarity throughout NFPA 52.

    Container protection requirements have been revised where those requirements referred to ASME containers that utilize pressure relief valves instead of pressure relief devices. NFPA 52 is a reliable reference book for natural gas engine fuel system requirements. Get the resource you need to increase safety and accuracy working with CNG and LNG fuel systems.

    Place an order today for the 2023 edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code. (Print. 71 pp., 2023)

  • Table of Contents (2023 Current Edition)

    NFPA® 52 Vehicular Natural Gas Fuel Systems Code, 2023 Edition

    Chapter 1 Administration
    1.1 Scope.
    1.2 Purpose.
    1.3 Retroactivity.
    1.4 Alternate Provisions.
    1.5 Training.
    1.6 Units.
    1.7 Enforcement.
    Chapter 2 Referenced Publications
    2.1 General.
    2.2 NFPA Publications.
    2.3 Other Publications.
    2.4 References for Extracts in Mandatory Sections.
    Chapter 3 Definitions
    3.1 General.
    3.2 NFPA Official Definitions.
    3.3 General Definitions.
    Chapter 4 Facility Management
    4.1 General.
    4.2 Building Construction Materials.
    4.3 Qualifications.
    4.4 Equipment Security.
    4.5 Operations and Maintenance.
    4.6 CNG Training.
    4.7 LNG Training.
    4.8 Special Hazard Requirements.
    Chapter 5 Facility Fire Protection
    5.1 General.
    5.2 CNG Supplemental Requirements.
    5.3 LNG Supplemental Requirements.
    Chapter 6 Facility Gas Detection, Alarm, and Emergency Shutdown Systems
    6.1 General.
    6.2 CNG Supplemental Requirements.
    6.3 LNG Supplemental Requirements.
    Chapter 7 Fuel Quality
    7.1 CNG.
    7.2 LNG. (Reserved)
    Chapter 8 Facility Equipment
    8.1 Scope.
    8.2 Application.
    8.3 General.
    8.4 CNG Systems.
    Chapter 9 Outdoor Storage
    9.1 Scope.
    9.2 General. (Reserved)
    9.3 CNG Supplemental Requirements.
    9.4 LNG Supplemental Requirements.
    Chapter 10 Indoor Storage
    10.1 Scope.
    10.2 General. (Reserved)
    10.3 CNG Supplemental Requirements.
    10.4 LNG Supplemental Requirements.
    Chapter 11 CNG Fueling
    11.1 Application.
    11.2 General.
    11.3 CNG Dispensing.
    Chapter 12 Residential CNG Fueling Appliances
    12.1 Application.
    12.2 System Component Qualifications.
    12.3 General Safety Requirements.
    12.4 Installation.
    12.5 Installation of PRVs.
    12.6 Installation of Pressure Gauges.
    12.7 Pressure Regulation.
    12.8 Piping and Hose.
    12.9 Testing.
    12.10 Operation.
    12.11 Maintenance and Inspection.
    Chapter 13 Nonresidential CNG Fueling Appliances
    13.1 General.
    13.2 Installation.
    13.3 Operation.
    13.4 Maintenance and Inspection.
    Chapter 14 LNG Fueling
    14.1 Application.
    14.2 General.
    14.3 LNG Dispensing.
    14.4 LNG Storage.
    14.5 Piping Systems and Components.
    Chapter 15 Automotive Equipment (Onboard)
    15.1 Scope.
    15.2 Application.
    15.3 General.
    15.4 CNG Supplemental Requirements.
    15.5 LNG Supplemental Requirements.
    Chapter 16 Automotive Fuel and Safety Systems (Onboard)
    16.1 Application.
    16.2 General.
    16.3 CNG Engine Fuel Systems.
    16.4 LNG Engine Fuel Systems.
    Chapter 17 Installation Requirements for ASME Tanks for LNG
    17.1 Application.
    17.2 General.
    17.3 Containers.
    17.4 Container Foundations and Supports.
    17.5 Container Installation.
    17.6 Automatic Product Retention Valves.
    17.7 Inspection.
    17.8 Testing and Purging of LNG Containers.
    17.9 Piping.
    17.10 Container Instrumentation.
    17.11 Pressure Gauging and Control.
    Chapter 18 Marine Onboard (Reserved)
    Chapter 19 Marine Refueling (Reserved)
    Annex A Explanatory Material
    Annex B Sample Ordinance Adopting NFPA 52
    Annex C Pressure Relief Devices (PRDs)
    Annex D Informational References
  • Prior Editions

    2019 Edition

    Better ensure the safe and efficient use of CNG and LNG fuel systems and mitigate fire and explosion hazards with NFPA 52.

    With the steady rise in the use of cost-effective natural gas vehicles, it's critical to have access to the complete range of requirements for designing, installing, operating, and maintaining compressed natural gas (CNG) and liquefied natural gas (LNG) engine fuel systems and dispensing systems. NFPA 52, Vehicular Natural Gas Fuel Systems Code, offers in-depth instruction for helping to safeguard people and installations in a user-friendly format that’s easy to navigate and comprehend.

    An essential for designers, engineers, maintenance professionals, facilities managers, contractors, and authorities having jurisdiction (AHJs), NFPA 52 covers CNG and LNG systems on all types of vehicles and applies to facilities with LNG storage in containers of 100,000 gallons or less. Additional subject areas include:

    • Fuel compression, processing, storage, and dispensing systems
    • CNG residential fueling facilities (RFF-CNGs)
    • CNG nonresidential fueling facilities
    • LNG fueling facilities
    • LNG fire protection
    • Installation of ASME tanks for LNG
    • LNG and CNG on commercial marine vessels and pleasure craft

    The 2019 NFPA 52, Vehicular Natural Gas Fuel Systems Code, is consistent with CSA Group MGV 5.1 and the International Fuel Gas Code. 

    Extensive revisions and additions to the new edition include:

    • Reorganized and expanded text to address cutting-edge vehicle fueling applications (VFAs)
    • A new chapter on nonresidential CNG fueling applications
    • Updated terminology to align with current definitions and VFA changes
    • Insertion of supplemental content for improved clarity
    • Removal of material to eliminate redundancy with the CSA Group NGV 5.1 standard

    NFPA 52 is a reliable reference book for natural gas engine fuel system requirements.

    Get the resource you need to increase safety and accuracy working with CNG and LNG fuel systems. Place an order for the 2019 edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code, today. (Print. 78 pp., 2019)

    Better ensure the safe and efficient use of CNG and LNG fuel systems and mitigate fire and explosion hazards with NFPA 52.

    With the steady rise in the use of cost-effective natural gas vehicles, it's critical to have access to the complete range of requirements for designing, installing, operating, and maintaining compressed natural gas (CNG) and liquefied natural gas (LNG) engine fuel systems and dispensing systems. NFPA 52, Vehicular Natural Gas Fuel Systems Code, offers in-depth instruction for helping to safeguard people and installations in a user-friendly format that’s easy to navigate and comprehend.

    An essential for designers, engineers, maintenance professionals, facilities managers, contractors, and authorities having jurisdiction (AHJs), NFPA 52 covers CNG and LNG systems on all types of vehicles and applies to facilities with LNG storage in containers of 100,000 gallons or less. Additional subject areas include:

    • Fuel compression, processing, storage, and dispensing systems
    • CNG residential fueling facilities (RFF-CNGs)
    • CNG nonresidential fueling facilities
    • LNG fueling facilities
    • LNG fire protection
    • Installation of ASME tanks for LNG
    • LNG and CNG on commercial marine vessels and pleasure craft

    The 2019 NFPA 52, Vehicular Natural Gas Fuel Systems Code, is consistent with CSA Group MGV 5.1 and the International Fuel Gas Code. 

    Extensive revisions and additions to the new edition include:

    • Reorganized and expanded text to address cutting-edge vehicle fueling applications (VFAs)
    • A new chapter on nonresidential CNG fueling applications
    • Updated terminology to align with current definitions and VFA changes
    • Insertion of supplemental content for improved clarity
    • Removal of material to eliminate redundancy with the CSA Group NGV 5.1 standard

    NFPA 52 is a reliable reference book for natural gas engine fuel system requirements.

    Get the resource you need to increase safety and accuracy working with CNG and LNG fuel systems. Place an order for the 2019 edition of NFPA 52, Vehicular Natural Gas Fuel Systems Code, today. (Print. 78 pp., 2019)

    2016 Edition

    NFPA 52, Vehicular Natural Gas Fuel Systems Code provides easy, one-stop access to requirements for the safety and integrity of CNG and LNG fuel systems.

    Because of the cost advantage of natural gas over petroleum-based liquid fuels, increasing numbers of natural gas-fueled vehicles are being put into service. As a result, NFPA 52 is more widely referenced than ever before by designers, engineers, installers, contractors, maintenance professionals, facilities managers, and Authorities Having Jurisdiction (AHJs).

    Renamed and completely reorganized, the 2016 edition presents a user-friendly format and greater consistency with CSA Group NGV 5.1 and the International Fuel Gas Code.

    Users depend on NFPA 52 for the correct design, installation, operation, and maintenance of Compressed Natural Gas (CNG) and Liquefied Natural Gas (LNG) engine fuel systems and dispensing systems. The 2016 edition is reorganized for easy access to requirements. New and revised definitions harmonize the Code with the new CSA Group NGV 5.1 Standard for residential fueling appliances, and also provide consistency with the International Fuel Gas Code (IFGC).

    NFPA 52 is your one-stop source for requirements addressing:

    • CNG and LNG systems on all vehicle types
    • Fuel compression, processing, storage, and dispensing systems
    • CNG residential fueling facilities (RFF-CNGs)
    • LNG fueling facilities
    • LNG fire protection
    • Installation of ASME tanks for LNG
    • LNG and CNG on Commercial Marine Vessels and Pleasure Craft

    NFPA 52 applies to facilities with LNG storage in containers of 70,000 gallons or less. (Softbound, 78 pp., 2016)

     

    Interested in other editions of the NFPA 52? Use the drop down menu above to select the edition year you need.

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