Skippers Academy COF Passing Procedures STAND-ON AND GIVE-WAY VESSELS Overtaking: A: Vessel A is the give-way vessel and can pass either to starboard or port. B: Vessel B is the Stand-on vessel and keep course. Head-on: Both vessels must alter course to starboard and pass port to port. Crossing: Vessel B will keep course and speed and vessel A must give way to starboard. Starboard and Port lights on vessel: