In a crossing situation, which vessel must give way?

In a crossing situation at sea, the fundamental rule is that a vessel must give way to another vessel that it sees on its starboard side. This is based on the maritime navigation rules, specifically the "road rules" at sea, which dictate that vessels must yield to those on their right-hand side. This principle helps to reduce the risk of collision and ensures a standardized approach to navigation.

This requirement is grounded in the fact that when two vessels are approaching each other, the one that has the other to its starboard (right) is considered to be "burdened" and must give way. The rationale is to maintain safe and predictable traffic patterns on the water, akin to the rules of the road on land, where vehicles yield to those on their right.

Understanding this rule is crucial for effective maritime navigation and safety. It emphasizes the importance of awareness of surrounding vessels and adherence to established maritime protocols for avoiding collisions.