US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 108 — DESIGN AND EQUIPMENTSubpart D — Fire Extinguishing Systems108.40146 C.F.R. § 108.401Fire main system.Last amended: 2016Year: 2026Length: 8 wordsOfficial source Cite as 46 C.F.R. § 108.401 (2026)Each unit must have a fire main system.Next46 C.F.R. § 108.403