Fire, explosions, and other related dangers pose significant risks to utility gas plants with liquefied petroleum gas systems. NFPA 59, Utility LP-Gas Plant Code, works in combination with DOT regulations to provide provisions for constructing and maintaining plants that store and vaporize LP-Gas or LP-Gas–air mixtures for distribution to 10 or more customers.

This publication is a must-have for designers, facility owners/operators, AHJs and enforcers, and others with concerns for LP-Gas utility plant safety. The code covers general requirements for the design, construction, location, installation, operation, and maintenance of refrigerated and non-refrigerated liquefied petroleum utility gas plants.

The Utility LP-Gas Plant Code helps improve safety and helps ensure compliance with 49 CFR 192, "Transportation of Natural and Other Gas By Pipeline: Minimum Federal Safety Standards."

The 2024 edition of NFPA 59 added an alternative approach for establishing the testing interval for relief valves that is different from the 5-year frequency required by previous editions of the code.