49 CFR § 195.222 - Welders and welding operators: Qualification of welders and welding operators.
(a) Each welder or welding operator must be qualified in accordance with section 6, section 12, Appendix A or Appendix B of API Std 1104 (incorporated by reference, see § 195.3), or section IX of the ASME Boiler and Pressure Vessel Code (ASME BPVC), (incorporated by reference, see § 195.3) except that a welder or welding operator qualified under an earlier edition than listed in § 195.3, may weld but may not requalify under that earlier edition.
(1) Engaged in welding with that process; and
The following state regulations pages link to this page.
- Ariz. Admin. Code R14-5-202 - R14-5-202 - Construction and Safety Standards for Gas, LNG, and Hazardous Liquid Pipeline Systems