{"operation":"document","citation":"49 CFR 179.200-11","title":"-11 Postweld heat treatment.","source_type":"regulation","agency":"Pipeline and Hazardous Materials Safety Administration","status":"current","official":true,"published_on":null,"effective_on":"2026-08-18","summary":"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).\n\n[68 FR 75761, Dec. 31, 2003]","machine_formats":{"json":"https://regulus.evalyn.ai/document/49-cfr-179-200-11.json","markdown":"https://regulus.evalyn.ai/document/49-cfr-179-200-11.md"},"app_url":"https://regulus.evalyn.ai/document/49-cfr-179-200-11","source_url":"https://www.ecfr.gov/on/2026-08-18/title-49/section-179.200-11","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).\n\n[68 FR 75761, Dec. 31, 2003]","truncated":false,"body_characters":242}