NFPA 59-2021 PDF Download

NFPA 59-2021 is a standard that provides criteria and regulations for ensuring the safety of utility gas plants with liquefied petroleum gas (LP-Gas) systems. It works in conjunction with DOT regulations and applies to plants that store and vaporize LP-Gas or LP-Gas-air mixtures for distribution to 10 or more customers. The code covers a wide range of topics, including the design, construction, location, installation, operation, and maintenance of both refrigerated and non-refrigerated LP-Gas utility gas plants.

This standard is essential for designers, facility owners/operators, AHJs (Authorities Having Jurisdiction) and enforcers, and anyone else responsible for ensuring the safety of LP-Gas utility plants. By following the provisions outlined in NFPA 59, stakeholders can effectively protect lives and property from the hazards associated with these plants. The code also helps ensure compliance with the minimum federal safety standards outlined in 49 CFR 192, which governs the transportation of natural and other gases by pipeline.

The 2021 edition of NFPA 59 includes updates and revisions to enhance the standard's effectiveness. Noteworthy changes include the addition of a table in the retroactivity section, which identifies the edition in which retroactive requirements were incorporated and their effective dates. Additionally, the code now specifies that purging should be conducted in accordance with the American Gas Association's Purging Manual.