46 CFR §52.05-1
Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
Boilers and component parts, including piping, that are fabricated by welding must be as indicated in PW-1 through PW-54 of Section I of the ASME BPVC (incorporated by reference; see § 52.01-1) except as noted otherwise in this subpart.