US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 131 — OPERATIONSSubpart B — Markings on Vessels131.21046 C.F.R. § 131.210Hulls.Last amended: 2016Year: 2026Length: 18 wordsOfficial source Cite as 46 C.F.R. § 131.210 (2026)The hull of each vessel must be marked as required by parts 67 and 69 of this chapter.Next46 C.F.R. § 131.220