4th Officer (Четвертый помощник) / Officer in charge of a navigational watch on ships of 500 gross tonnage or more (Вахтенный помощник капитана морского судна валовой вместимостью 500 и более)

Officer in charge of a navigational watch on ships of 500 gross tonnage or more, Officer on watch (OOW)

4th Officer, Third Officer

Chief Officer, Master on ships of less than 500 gross tonnage engaged on near-coastal voyages, 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