US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 64 — MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMSSubpart B — Standards for an MPT64.2746 C.F.R. § 64.27Base.Last amended: 2016Year: 2026Length: 15 wordsOfficial source Cite as 46 C.F.R. § 64.27 (2026)The base of an MPT must be as wide and as long as the tank.Previous46 C.F.R. § 64.25Next46 C.F.R. § 64.29