Code of Federal Regulations > Title 46 > Chapter I > Part 56 > Subpart 56.30 - Subpart 56.30—Selection and Limitations of Piping Joints

Regulations last checked for updates: Feb 12, 2026

Title 46 - Shipping last revised: Jan 15, 2026

§ 56.30-1 - Scope (replaces 110 through 118).

§ 56.30-3 - Piping joints (reproduces 110).

§ 56.30-5 - Welded joints.

§ 56.30-10 - Flanged joints (modifies 104.5.1(a)).

§ 56.30-15 - Expanded or rolled joints.

§ 56.30-20 - Threaded joints.

§ 56.30-25 - Flared, flareless, and compression fittings.

§ 56.30-27 - Caulked joints.

§ 56.30-30 - Brazed joints.

§ 56.30-35 - Gasketed mechanical couplings.

§ 56.30-40 - Flexible pipe couplings of the compression or slip-on type.

authority: 33 U.S.C. 1321(j), 1509; 43 U.S.C. 1333; 46 U.S.C. 3306,3703; E.O. 12234, 45 FR 58801, 3 CFR, 1980 Comp., p. 277; E.O. 12777, 56 FR 54757, 3 CFR, 1991 Comp., p. 351; DHS Delegation No. 00170.1, Revision No. 01.4

source: CGFR 68-82, 33 FR 18843, Dec. 18, 1968, unless otherwise noted.