You are approaching a sailing vessel - head-on
You are approaching the stern of another vessel
You are approaching a powerboat head-on
You are approaching a powerboat head-on
You are approaching the starboard side of another vessel
You are approaching a powerboat head-on
The other vessel is coming directly toward the observer, so both the port and starboard running lights are visible.
The other vessel is coming directly toward the observer, so both the port and starboard running lights are visible.
You are approaching the stern of another vessel and may be overtaking it
A vessel displaying a visible white light signifies that it is a power-driven vessel. Observing this light helps determine the vessel's status and potential course of action to avoid a collision.
Go around on either side is the action that is required of Boat A while overtaking Boat B in darkness or reduced visibility.
Give-way to the starboard side
3 seconds of rapid bell ringing