US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 169 — SAILING SCHOOL VESSELSSubpart 169.700—Vessel Control, Miscellaneous Systems, and Equipment169.73846 C.F.R. § 169.738Emergency lights.Last amended: 2016Year: 2026Length: 15 wordsOfficial source Cite as 46 C.F.R. § 169.738 (2026)Each emergency light must be marked with a letter “E” at least 1/2 inch high.Previous46 C.F.R. § 169.737Next46 C.F.R. § 169.739