StacksVerified U.S. regulatory reference

46 CFR §154.401

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
As used in §§ 154.440 and 154.447: “σY” means the minimum yield strength of the tank material, including weld metal, at room temperature. “σB” means minimum tensile strength of the tank material, including weld metals, at room temperature.