Code of Federal Regulations > Title 46 > Chapter I > Part 54 > Subpart 54.25 - Subpart 54.25—Construction With Carbon, Alloy, and Heat-Treated Steels

Regulations last checked for updates: Feb 12, 2026

Title 46 - Shipping last revised: Jan 15, 2026

§ 54.25-1 - Scope.

§ 54.25-3 - Steel plates (modifies UCS-6).

§ 54.25-5 - Corrosion allowance.

§ 54.25-7 - Requirement for postweld heat treatment (modifies UCS-56).

§ 54.25-8 - Radiography (modifies UW-11(a), UCS-57, UNF-57, UHA-33, and UHT-57).

§ 54.25-10 - Low temperature operation—ferritic steels (replaces UCS-65 through UCS-67).

§ 54.25-15 - Low temperature operation—high alloy steels (modifies UHA-23(b) and UHA-51).

§ 54.25-20 - Low temperature operation—ferritic steels with properties enhanced by heat treatment (modifies UHT-5(c), UHT-6, UHT-23, and UHT-82).

§ 54.25-25 - Welding of quenched and tempered steels (modifies UHT-82).

authority: 33 U.S.C. 1509; 43 U.S.C. 1333; 46 U.S.C. 3306,3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3

source: CGFR 68-82, 33 FR 18828, Dec. 18, 1968, as amended by USCG-2020-0634, 89 FR 50104, June 12, 2024, unless otherwise noted.