When two power-driven vessels are crossing, which vessel must keep out of the way?

The vessel that is on the starboard side has the right of way when two power-driven vessels are crossing paths. This is grounded in the "Rule of the Road" which dictates right-of-way situations at sea. When both vessels are approaching each other at an angle, the vessel on the port side is generally required to give way to the vessel on the starboard side.

This rule is crucial for maritime safety because it helps to prevent collisions by establishing clear expectations for each vessel's actions in a crossing situation. The vessel on the port side is obligated to maneuver to ensure the safety of both vessels involved. Thus, understanding the rules regarding right-of-way is essential for any Deck Watch Officer to effectively manage navigation and ensure the safety of all vessels in proximity.