Regulationhistorical
49 CFR 179.300-10
Postweld heat treatment.
Snapshot 1999-10-01 Government source
eCFR editorial compilationAuthoritative but unofficial
View source 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.
[Amdt. 179-10, 36 FR 21355, Nov. 6, 1971]