NFPA 52: Vehicular Gaseous Fuel Systems Code

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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, Approx. 60 pp., 2016)

NFPA 52® Vehicular Natural Gas Fuel Systems Code, 2016 Edition

Chapter 1 Administration
1.1 Scope.
1.2 Purpose.
1.3 Retroactivity.
1.4 Alternate Provisions.
1.5 Units.
1.6 Enforcement.
1.7 Training.
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 General.
7.2 CNG.
7.3 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.
10.4 LNG Supplemental Requirements.
Chapter 11 CNG Fueling
11.1 Application.
11.2 General.
11.3 CNG Dispensing.
Chapter 12 Residential CNG Fueling
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 Installation of Emergency Shutdown Equipment.
12.11 Operation.
12.12 Maintenance and Inspection.
Chapter 13 LNG Fueling
13.1 Application.
13.2 General.
13.3 LNG Dispensing.
13.4 LNG Storage.
13.5 Piping Systems and Components.
Chapter 14 Automotive Equipment (Onboard)
14.1 Scope.
14.2 Application.
14.3 General.
14.4 CNG (Supplemental Requirements).
14.5 LNG Supplemental Requirements.
Chapter 15 Automotive Fuel and Safety Systems (Onboard)
15.1 Application.
15.2 General.
15.3 CNG Engine Fuel Systems.
15.4 LNG Engine Fuel Systems.
Chapter 16 Installation Requirements for ASME Tanks for LNG
16.1 Application.
16.2 General.
16.3 Containers.
16.4 Container Foundations and Supports.
16.5 Container Installation.
16.6 Automatic Product Retention Valves.
16.7 Inspection.
16.8 Testing and Purging of LNG Containers.
16.9 Piping.
16.10 Container Instrumentation.
16.11 Pressure Gauging and Control.
Chapter 17 Reserved
Chapter 18 Reserved
Annex A Explanatory Material
Annex B Sample Ordinance Adopting NFPA 52
Annex C Pressure Relief Devices (PRDs)
Annex D Informational References