US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 112 — EMERGENCY LIGHTING AND POWER SYSTEMSSubpart 112.37—Temporary Emergency Power Source112.37-146 C.F.R. § 112.37-1General.Last amended: 2016Year: 2026Length: 31 wordsOfficial source Cite as 46 C.F.R. § 112.37-1 (2026)Each temporary source of emergency power required by Table 112.05-5(a) must consist of a storage battery of sufficient capacity to supply the temporary emergency loads for not less than one-half hour.