In crossing, the stand-on vessel may take action to avoid collision by maneuver under what condition?

• A. It may take action to avoid collision
• B. It must always maintain course and speed
• C. It must immediately surrender the right of way
• D. It should stop and drift

Answer: (A)

In a crossing situation, the stand-on vessel is expected to keep its course and speed, but not at the expense of safety. It may take action to avoid collision by maneuver when it becomes clear that the other vessel’s actions will not prevent a collision or if there is insufficient action from the other vessel to avert danger. In practice, this means the stand-on vessel can initiate a turn, slow down, or adjust speed to ensure safe passage if continuing on course would risk a collision.

This isn’t saying the stand-on must always abandon its course, surrender its right of way, or stop and drift. Those actions would not be appropriate when a safe course of action is available and necessary to prevent a collision.