{"data":{"id":"us/49-cfr-179.200-11","jurisdiction":"us","citation":"49 CFR 179.200-11","heading":"-11 Postweld heat treatment.","body":"When specified in § 179.201-1, after welding is complete, postweld heat treatment must be in compliance 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 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":"e6b16a6c82a568e62e3848e164a13b395f84bfa6f20392d8e783bce5ad2b1d8b","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.200-10","next":"us/49-cfr-179.200-13"},"notice":"GroundRules: Original legal text. Not legal advice."}