49 CFR § 179.200-23
Tests of pressure relief valves
November 18, 2020
(a) Each valve shall be tested by air or gas for compliance with §179.15 before being put into service.
(b) [Reserved]
[29 FR 18995, Dec. 29, 1964. Redesignated at 32 FR 5606, Apr. 5, 1967, as amended at 62 FR 51561, Oct. 1, 1997]