{"data":{"id":"us/49-cfr-179.220-24","jurisdiction":"us","citation":"49 CFR 179.220-24","heading":"-24 Tests of pressure relief valves.","body":"Each safety relief valve must be tested by air or gas for compliance with § 179.15 before being put into service.","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 179—SPECIFICATIONS FOR TANK CARS","Subpart D—Specifications for Non-Pressure Tank Car Tanks (Classes DOT-111AW, 115AW, and 117AW)"],"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":"209441d201e8ad30a29e35a9a15af430177356eb16a7a0f6de91ebdb44df2b09","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.220-23","next":"us/49-cfr-179.220-25"},"notice":"GroundRules: Original legal text. Not legal advice."}