Code of Federal Regulations Title 46. Shipping § 46.53.05–1 Safety valve requirements for steam boilers (modifies HG–400 and HG–401)

(a) The pressure relief valve requirements and the safety valve requirements for steam boilers must be as indicated in HG–400 and HG–401 of section IV of the ASME Boiler and Pressure Vessel Code (incorporated by reference;  see 46 CFR 53.01–1) except as noted otherwise in this section.

(b) Each steam boiler must have at least one safety valve.