Master's representative
Under the STCW Code, the OOW is the master's representative and is primarily responsible at all times for the safe navigation of the ship and for complying with the COLREGS.
As the master's representative, the OOW is in charge of the bridge and in charge of the bridge team for that watch, until properly relieved. In compliance with shipboard operational procedures and master's standing orders, the OOW should ensure that bridge watch manning levels are at all times safe for the prevailing circumstances and conditions.
Primary duties
In order to maintain a safe navigational watch, the primary duties of the OOW will involve watchkeeping, navigation and GMDSS radio watchkeeping.
Watchkeeping
The watchkeeping duties of the OOW include maintaining a lookout and general surveillance of the ship, collision avoidance in compliance with the COLREGS, recording bridge activities and making periodic checks on the navigational equipment in use. Procedures for handing over the watch and calling for support on the bridge should be in place and understood by the OOW.
Navigation
The navigational duties of the OOW are based upon the need to execute the passage plan safely, and monitor the progress of the ship against that plan.
Radio communications
With the introduction of the Global Maritime Distress and Safety System (GMDSS) radio communications have now become an important element in the functions of the OOW, who will be responsible for maintaining a continuous radio watch at sea. During distress incidents, one of the qualified radio personnel should be designated to have primary responsibility for radio communications. On passenger ships that person can have no other duties during a distress situation.
