US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 90 — GENERAL PROVISIONSSubpart 90.10—Definition of Terms Used in This Subchapter90.10-2046 C.F.R. § 90.10-20Liftboat.Last amended: 2016Year: 2026Length: 38 wordsOfficial source Cite as 46 C.F.R. § 90.10-20 (2026)Liftboat means an offshore supply vessel with moveable legs capable of raising its hull above the surface of the sea. [CGD 82-004a, 55 FR 2525, Jan. 25, 1990, as amended by USCG-2014-0688, 79 FR 58282, Sept. 29, 2014]Previous46 C.F.R. § 90.10-19Next46 C.F.R. § 90.10-21