Subpart 54.20. Subpart 54.20—Fabrication by Welding

• § 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).