49 CFR 178.347-5
§ 178.347-5 Pressure and leakage test.
United States · 49 CFR — Transportation · Status: effective
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- Citation
- 49 CFR 178.347-5, § 178.347-5 Pressure and leakage test, United States, version 1 as recorded 2026-07-09, yourstate.us, https://yourstate.us/provision/256567
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Full text
(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 40 psig or 1.5 times tank MAWP, whichever is greater.
(2) Using the pneumatic test method, the test pressure must be 40 psig or 1.5 times tank MAWP, whichever is greater, and the inspection pressure is tank MAWP.
Legislative history
This is a federal regulation, adopted through agency rulemaking under the Administrative Procedure Act — not enacted by a recorded vote of Congress.