Site Feedback

Title 46

Displaying title 46, up to date as of 6/10/2026. Title 46 was last amended 6/05/2026.
eCFR Content

The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. It is not an official legal edition of the CFR.

Learn more about the eCFR, its status, and the editorial process.

§ 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.