The NFPA 12A-2022 Standard on Halon 1301 Fire Extinguishing Systems serves as a comprehensive guide, offering detailed directives for the inspection, maintenance, and decommissioning of such systems. Primarily targeting commercial, industrial, institutional, marine, and military installations where these systems find common use, this standard is an essential resource for professionals involved in various stages of the system lifecycle. Designed to assist individuals engaged in designing, installing, testing, inspecting, approving, listing, operating, maintaining, decommissioning, and removing halogenated agent systems, NFPA 12A ensures the reliable functionality of equipment throughout its operational lifespan. Encompassing a wide array of system aspects, including design, installation, testing, and more, it provides comprehensive coverage of essential considerations. The 2022 edition of NFPA 12A introduces several enhancements aimed at bolstering the standard's relevance and accuracy. Key updates include revised requirements for cylinder requalification to align with 49 CFR regulations and a recommendation to utilize the HRC Code of Practice for Halon Reclaiming Companies. Moreover, NFPA 12A-2022 incorporates informative annexes offering valuable insights into various topics related to these systems, such as enclosure integrity procedures, hazards to personnel, storage containers, piping, system flow calculations, and installation approvals. In essence, NFPA 12A-2022 offers a robust framework for ensuring the effective utilization and maintenance of Halon 1301 fire-extinguishing systems, thereby guaranteeing their consistent functionality throughout their service life.