INTERNATIONAL ONLY You intend to overtake a vessel in a narrow channel, and you intend to pass along the vessel's port side. How should you signal your intention?

Correct Answer: Option A — Two prolonged followed by two short blasts

COLREG Rule 34(c)(i) requires an overtaking vessel in a narrow channel or fairway desiring to pass on the overtaken vessel's port side to sound a specific maneuver signal of two prolonged blasts followed by two short blasts.