US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 151 — BARGES CARRYING BULK LIQUID HAZARDOUS MATERIAL CARGOESSubpart 151.03—Definitions151.03-2746 C.F.R. § 151.03-27Gas free.Last amended: 2016Year: 2026Length: 9 wordsOfficial source Cite as 46 C.F.R. § 151.03-27 (2026)Free from dangerous concentrations of flammable or toxic gases.Previous46 C.F.R. § 151.03-25Next46 C.F.R. § 151.03-29