Third Officer (Третий помощник)

AB / Crane Operator, Boatswain / Bosun, Crane Operator, Junior officer, Officer in charge of a navigational watch on ships of 500 gross tonnage or more, Officer in charge of a navigational watch on ships of less than 500 gross tonnage, engaged on near-coastal voyages, Seamen, Second Officer, Third Officer

4th Officer, Officer on watch (OOW), Third Officer

Chief mate on ships of between 500 and 3,000 gross tonnage, Second Officer, Third Officer