46 C.F.R. § 53.05-1 Safety valve requirements for steam boilers (modifies HG–400 and HG–401).
Title 46 - Shipping
(a) The pressure relief valve requirements and the safety valve requirements for steam boilers must be as indicated in HG–400 and HG–401 except as noted otherwise in this section. (b) Each steam boiler must have at least one safety valve.
Title 46: Shipping
PART 53—HEATING BOILERS
Subpart 53.05—Pressure Relieving Devices (Article 4)
§ 53.05-1 Safety valve requirements for steam boilers (modifies HG–400 and HG–401).
