StacksVerified U.S. regulatory reference

49 CFR §179.200-11

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
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).