46 C.F.R. § 38.25-10 Safety relief valves—TB/ALL.
Title 46 - Shipping
(a) The cargo tank safety relief valves shall be inspected at least once in every 2 years. (b) The safety relief valve discs must be lifted from their seats in the presence of a marine inspector by either liquid, gas, or vapor pressure at least once every 5 years to determine the accuracy of adjustment and, if necessary, must be reset. [CGFR 66–33, 31 FR 15269, Dec. 6, 1966, as amended by CGD 95–027, 61 FR 26000, May 23, 1996]
Title 46: Shipping
PART 38—LIQUEFIED FLAMMABLE GASES
Subpart 38.25—Periodic Tests and Inspections
§ 38.25-10 Safety relief valves—TB/ALL.
