46 C.F.R. § 64.71 Marking of pressure relief devices.
Title 46 - Shipping
A pressure relief device must be plainly and permanently marked with the— (a) Set pressure rating; (b) Rated flow capacity expressed as cubic feet of standard air (60 °F 14.7 psia) per minute and the pressure at which the flow capacity is determined; (c) Manufacturer's name and identifying number; and (d) Pipe size of inlet.
Title 46: Shipping
PART 64—MARINE PORTABLE TANKS AND CARGO HANDLING SYSTEMS
Subpart C—Pressure Relief Devices and Vacuum Relief Devices for MPTs
§ 64.71 Marking of pressure relief devices.
