{"data":{"id":"us/49-cfr-179.400-15","jurisdiction":"us","citation":"49 CFR 179.400-15","heading":"-15 Radioscopy.","body":"Each longitudinal and circumferential joint of the inner tank, and each longitudinal and circumferential double welded butt joint of the outer jacket, must be examined along its entire length in accordance with the requirements of AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of this subchapter).","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 F—Specification for Cryogenic Liquid Tank Car Tanks and Seamless Steel Tanks (Classes DOT-113 and 107A)"],"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":"3d411ac53ded1fa9877efbf3ed228c0a81c5051b80f6260943280fa8564a984d","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.400-14","next":"us/49-cfr-179.400-16"},"notice":"GroundRules: Original legal text. Not legal advice."}