46 CFR 64.17 - Minimum tank thickness.

Regulations last checked for updates: May 03, 2025

Title 46 - Shipping last revised: Mar 17, 2025

§ 64.17 - Minimum tank thickness.

(a) Except as allowed in paragraph (b) of this section, a tank with a diameter of—

(1) 6 feet or less must have a shell and head of 3/16 inch thickness or more; or

(2) More than 6 feet must have a shell and head of 1/4 inch thickness or more.

(b) If the tank has additional framework to guard against accidental puncturing of the tank, the shell and head thickness must be 1/8 inch or more.

authority: 46 U.S.C. 3306,3703; 49 U.S.C. App. 1804; Department of Homeland Security Delegation No. 00170.1, Revision No. 01.3

source: CGD 73-172, 39 FR 22950, June 25, 1974, unless otherwise noted.

cite as: 46 CFR 64.17