{"data":{"id":"us/49-cfr-178.347-5","jurisdiction":"us","citation":"49 CFR 178.347-5","heading":"-5 Pressure and leakage test.","body":"(a) Each cargo tank must be tested in accordance with § 178.345-13 and this section.\n(b) Pressure test. Test pressure must be as follows:\n(1) Using the hydrostatic test method, the test pressure must be at least 40 psig or 1.5 times tank MAWP, whichever is greater.\n(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.","path":["Title 49—Transportation","Subtitle B—Other Regulations Relating to Transportation","CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION","SUBCHAPTER C—HAZARDOUS MATERIALS REGULATIONS","PART 178—SPECIFICATIONS FOR PACKAGINGS","Subpart J—Specifications for Containers for Motor Vehicle Transportation"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-49.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:34Z","sha256":"3877afbb04629b57f5e0eabd0d05d35c9745e55e2ff6a9140a2daee4d93b3280","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-178.347-4","next":"us/49-cfr-178.348"},"notice":"GroundRules: Original legal text. Not legal advice."}