CFR › Title 46 › Part 61 › §61.05-2046 CFR §61.05-20Verified against eCFR.gov as of June 20, 2026View official text on eCFR.gov ↗Copy linkEach safety valve for a drum, superheater, or reheater of a boiler must be tested at the interval specified by table 1 to § 61.05-10.