CFR › Title 46 › Part 56 › §56.25-746 CFR §56.25-7Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkEach blank must conform to the design requirements of 104.5.3 of ASME B31.1 (incorporated by reference; see § 56.01-2).