Regulationcurrent
49 CFR 178.348-5
-5 Pressure and leakage test.
Current as of 2026-08-18 Government source
eCFR editorial compilationAuthoritative but unofficial
View source (a)Each cargo tank must be tested in accordance with § 178.345-13 and this section.#
(b)Pressure test. Test pressure must be as follows:#
(1)Using the hydrostatic test method, the test pressure must be at least 1.5 times MAWP.#
(2)Using the pneumatic test method, the test pressure must be at least 1.5 times tank MAWP, and the inspection pressure is tank MAWP.#