and new Annex H
and performance requirements
New dry pipe system supervision requirements added to Chapter 8
noncombustible
Clarification on sprinkler requirements for closets with no doors
2024 NFPA 54/ANSI Z223.1 National Fuel Gas Code safety standards and new Annex HNFPA 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