In overtaking, the overtaking vessel is relieved of keeping clear when

• A. she is past and clear of the other vessel
• B. she is still behind
• C. the other vessel signals to pass
• D. the overtaken vessel changes course

Answer: (A)

When you are overtaking, you must keep clear of the vessel you are passing to avoid a collision. That duty ends only when you are past and clear of that vessel. Once your stern has fully passed the other vessel and you have enough separation ahead, you’re relieved of the obligation to keep clear and may resume normal operation. In practice, this means you’ve safely completed the maneuver and are no longer in a position where the other vessel could be affected by your pass.

Signals from the other vessel or changes in its course do not change this requirement; you still must maintain clearance until you are truly past and clear. If you’re still behind or alongside, you must continue to keep clear.