CFR › Title 46 › Part 53 › §53.10-1046 CFR §53.10-10Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkStamping of heating boilers must be as indicated in HG-530 of Section IV of the ASME BPVC (incorporated by reference; see § 53.01-1).