46 C.F.R. § 61.05-20
Boiler safety valves
Each 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.
Each 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.