46 CFR § 35.25-15
Carrying of excess steam—TB/ALL
April 15, 2021
It shall be the duty of the chief engineer of any tank vessel to see that a steam pressure is not carried in excess of that allowed by the certificate of inspection, and to see that the safety valves, once set by the inspector, are in no way tampered with or made inoperative.
[CGD 95-028, 62 FR 51199, Sept. 30, 1997]