46 CFR § 78.55-1
Master and chief engineer responsible
April 15, 2021
It shall be the duty of the master and the engineer in charge of the boilers of any vessel to require that a steam pressure is not carried in excess of that allowed by the certificate of inspection, and to require that the safety valves, once set by the inspector, are in no way tampered with or made inoperative.
[CGD 95-028, 62 FR 51205, Sept. 30, 1997]