46 CFR § 154.401 - Definitions.

---
identifier: "/us/cfr/t46/s154.401"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "46 CFR § 154.401 - Definitions."
title_number: 46
title_name: "Shipping"
section_number: "154.401"
section_name: "Definitions."
chapter_name: "COAST GUARD, DEPARTMENT OF HOMELAND SECURITY"
subchapter_number: "O"
subchapter_name: "CERTAIN BULK DANGEROUS CARGOES"
part_number: "154"
part_name: "SAFETY STANDARDS FOR SELF-PROPELLED VESSELS CARRYING BULK LIQUEFIED GASES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "46 U.S.C. 3703, 9101; Department of Homeland Security Delegation No. 0170.1."
regulatory_source: "CGD 74-289, 44 FR 26009, May 3, 1979, unless otherwise noted."
cfr_part: "154"
---


# 154.401 Definitions.

As used in §§ 154.440 and 154.447:

“σ<sub>Y</sub>” means the minimum yield strength of the tank material, including weld metal, at room temperature.

“σ<sub>B</sub>” means minimum tensile strength of the tank material, including weld metals, at room temperature.