Vehicular gaseous fuel systems NFPA code?

• A. NFPA 1
• B. NFPA 70
• C. NFPA 52
• D. NFPA 13

Answer: (C)

Vehicular gaseous fuel systems require a dedicated standard that specifies the design, installation, operation, testing, and ongoing safety for fuels like compressed natural gas and liquefied petroleum gas used in vehicles. This standard, NFPA 52, Vehicular Gaseous Fuel Systems Code, covers components such as cylinders, high‑pressure piping, fuel lines, pressure relief devices, venting, shutoff valves, accessibility, labeling, and the required inspection and testing to ensure safe performance and hazard control. Other NFPA codes address broader areas: NFPA 1 Fire Code focuses on general fire prevention and life safety, NFPA 70 covers electrical installations, and NFPA 13 deals with sprinkler systems. None of these specifically address the unique design and safety requirements of gaseous fuel systems in vehicles, so the targeted guidance for these systems comes from NFPA 52.