{"data":{"id":"us/49-cfr-179.220-10","jurisdiction":"us","citation":"49 CFR 179.220-10","heading":"-10 Welding.","body":"(a) All joints must be fusion welded in compliance with AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of this subchapter). Welding procedures, welders, and fabricators shall be approved.\n(b) Radioscopy of the outer shell is not a specification requirement.\n(c) Welding is not permitted on or to ductile iron or malleable iron fittings.","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":"533133f8f9baaeab7a54de141411264c9e40efef1bed774f4a7e64588f844455","source_id":"us-cfr","stale":true,"prev":"us/49-cfr-179.220-9","next":"us/49-cfr-179.220-11"},"notice":"GroundRules: Original legal text. Not legal advice."}