Chief engineer officer on ships powered by main propulsion machinery of between 750 kW and 3,000 kW propulsion power, Second engineer officer on ships powered by main propulsion machinery of 3000 kW propulsion power or more

Motorman

Officer in charge of a navigational watch on ships of less than 500 gross tonnage, engaged on near-coastal voyages

Chief Officer, Master, Master on ships of 3,000 gross tonnage or more