49 C.F.R. § 179.100-9
Welding.
Cite as 49 C.F.R. § 179.100-9 (2026)
(a) All joints shall be fusion-welded in compliance with the requirements of AAR Specifications for Tank Cars, appendix W (IBR, see § 171.7 of this subchapter). Welding procedures, welders and fabricators shall be approved.
(b) [Reserved]
[29 FR 18995, Dec. 29, 1964, as amended at 65 FR 58632, Sept. 29, 2000; 68 FR 75759, Dec. 31, 2003]
- Cross-references to the CFR
- 171.7