49 C.F.R. §§ 179.300-10
Current through November 30, 2024
After welding is complete, steel tanks and all attachments welded thereto, must be postweld heat treated as a unit in compliance with the requirements of AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of this subchapter).
49 C.F.R. §§179.300-10