US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 95 — FIRE PROTECTION EQUIPMENTSubpart 95.16—Fixed Clean Agent Gas Extinguishing Systems, Details95.16-4046 C.F.R. § 95.16-40Locked spaces.Last amended: 2016Year: 2026Length: 34 wordsOfficial source Cite as 46 C.F.R. § 95.16-40 (2026)If a space or enclosure containing extinguishing agent supply or controls is lockable, a key to the space or enclosure must be in a break glass type box conspicuously located adjacent to the opening.Previous46 C.F.R. § 95.16-35Next46 C.F.R. § 95.16-45