US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 196 — OPERATIONSSubpart 196.37—Markings for Fire and Emergency Equipment, etc.196.37-2546 C.F.R. § 196.37-25Emergency lights.Last amended: 2016Year: 2026Length: 16 wordsSubsections: 1Official source Cite as 46 C.F.R. § 196.37-25 (2026)(a) All emergency lights shall be marked with a letter “E” at least 1/2 inch high.Previous46 C.F.R. § 196.37-23Next46 C.F.R. § 196.37-33