The Fourth Engineer Officer must keep an engine room watch, or, on UMS ships, must act as duty engineer in rotation.
He must understudy the Second and Third Engineer Officers and is responsible to the Second Engineer Officer for:
- The safety of all personnel working under his supervision;
- Maintenance as directed;
- Maintenance and upkeep of engine room safety equipment.
- Must carry out any lawful command and delegated duty as issued by the Chief Engineer and /or Master