US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 78 — OPERATIONSSubpart 78.47—Markings for Fire and Emergency Equipment, Etc.78.47-3346 C.F.R. § 78.47-33Emergency lights.Last amended: 2016Year: 2026Length: 18 wordsSubsections: 2Official source Cite as 46 C.F.R. § 78.47-33 (2026)(a) All emergency lights shall be marked with a letter “E” at least 1/2 inch high. (b) [Reserved]Previous46 C.F.R. § 78.47-30Next46 C.F.R. § 78.47-35