46 CFR 64.19 - External pressure.

Regulations last checked for updates: May 03, 2025

Title 46 - Shipping last revised: Mar 17, 2025

§ 64.19 - External pressure.

(a) A tank without a vacuum breaker must be designed to withstand an external pressure of 7 1/2 psig or more.

(b) A tank with a vacuum breaker must be designed to withstand an external pressure of 3 psig 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 64.19