StacksVerified U.S. regulatory reference

46 CFR §56.85-10

Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗
The minimum welding preheat procedures and temperatures must be as stated in section 131 and Table 131.4.1 of ASME B31.1 (incorporated by reference; see § 56.01-2).