2024 NFPA 54/ANSI Z223.1 National Fuel Gas Code

NFPA 54/ANSI Z223.1, National Fuel Gas Code 2024 edition establishes mandatory requirements for the safe design, installation, operation, maintenance, purging, and inspection of fuel gas piping systems, equipment, accessories, and appliances. Coverage addresses piping system design, materials, and components; pipe sizing; underground, aboveground, and concealed space installation; piping inspection, testing, leak checks, and purging; process air requirements; appliance installation; and venting of combustion products. The code is co-published with ANSI and is the primary reference for plumbers, mechanical engineers, gas contractors, inspectors, and AHJ officials responsible for fuel gas system compliance across residential, commercial, and industrial applications. Who Uses NFPA 54 Required by mechanical engineers, plumbers, gas system contractors, HVAC contractors, building inspectors, and AHJ officials responsible for the design, installation, and inspection of fuel gas piping systems