BOTH INTERNATIONAL & INLAND You are crossing a narrow channel in an 18- meter tug when you sight a loaded tankship off your port bow coming up the channel. Which statement is correct?

Correct Answer: Option D — You cannot impede the safe passage of the tankship.

Rule 9(b) of the Navigation Rules dictates that a vessel of less than 20 meters in length or a sailing vessel shall not impede the safe passage of a vessel which can safely navigate only within a narrow channel or fairway. Tankships in channels command this right-of-way.