What should a vessel do if it is being overtaken?

When a vessel is being overtaken, the appropriate action is to keep its course and speed. According to the navigation rules, specifically the International Regulations for Preventing Collisions at Sea (COLREGs), a vessel that is being overtaken is considered the "stand-on" vessel. This means it has the right to continue on its current course and speed without making any sudden maneuvers. The overtaking vessel is responsible for passing safely and must ensure that it does so without risking a collision.

Maintaining course and speed provides predictability for the overtaking vessel, allowing it to assess the situation and maneuver properly. This is essential for safe navigation and helps avoid misunderstandings that could lead to dangerous situations.

Other options might suggest actions that could complicate the situation. For example, signaling the overtaking vessel to pass may create confusion about intentions. Changing course can introduce the risk of collision if the overtaking vessel is not aware of the maneuver. Turning on navigation lights is essential for visibility at night or in poor conditions but does not address how the vessels should interact in this overtaking scenario.