The Third Officer position works under the supervision of the Second Officer (Navigator), Department Head, and First Officer. Serves as a Deck Watch Officer and is responsible for the safe navigation of the vessel. Assists the Master and senior deck officers in carrying out their responsibilities. As directed/designated by the Chief Mate, makes timely and frequent inspection of all lifesaving equipment onboard the vessels, including lifeboats, life rafts and associated securing devices, and any other equipment. May be assigned collateral duties of Assistant Damage Control Officer, CBR-D Officer, or Special Services Officer.