US lawFederal (United States)RegulationsTitle 46 CFR — ShippingChapter I — COAST GUARD, DEPARTMENT OF HOMELAND SECURITYPart 154 — SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASESSubpart C — Design, Construction and Equipment154.40146 C.F.R. § 154.401Definitions.Last amended: 2016Year: 2026Length: 42 wordsOfficial source Cite as 46 C.F.R. § 154.401 (2026)As used in §§ 154.440 and 154.447: “σ Y ” means the minimum yield strength of the tank material, including weld metal, at room temperature. “σ B ” means minimum tensile strength of the tank material, including weld metals, at room temperature.Cross-references to the CFR154.440Previous46 C.F.R. § 154.356Next46 C.F.R. § 154.406