46 CFR 154.401 - Definitions.

Regulations last checked for updates: Feb 12, 2026

Title 46 - Shipping last revised: Jan 15, 2026

§ 154.401 - Definitions.

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.

authority: 46 U.S.C. 3703,9101; Department of Homeland Security Delegation No. 0170.1

source: CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted.

cite as: 46 CFR 154.401