US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 69 — MEASUREMENT OF VESSELSSubpart B — Convention Measurement System69.5146 C.F.R. § 69.51Purpose.Last amended: 2016Year: 2026Length: 29 wordsOfficial source Cite as 46 C.F.R. § 69.51 (2026)This subpart prescribes the requirements for measuring a vessel in order to comply with the International Convention on Tonnage Measurement of Ships, 1969 (Convention), and 46 U.S.C. chapter 143.Next46 C.F.R. § 69.53