SUBPART 54.20—Fabrication by Welding (§54.20-1 to §54.20-5)
- 54.20-1—Scope (modifies UW-1 through UW-65).
- 54.20-2—Fabrication for hazardous materials (replaces UW-2(a)).
- 54.20-3—Design (modifies UW-9, UW-11(a), UW-13, and UW-16).
- 54.20-5—Welding qualification tests and production testing (modifies UW-26, UW-28, UW-29, UW-47, and UW-48).