US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 67 — DOCUMENTATION OF VESSELSSubpart A — General67.146 C.F.R. § 67.1Purpose.Last amended: 2016Year: 2026Length: 31 wordsOfficial source Cite as 46 C.F.R. § 67.1 (2026)A Certificate of Documentation is required for the operation of a vessel in certain trades, serves as evidence of vessel nationality, and permits a vessel to be subject to preferred mortgages.Next46 C.F.R. § 67.3