INLAND ONLY Two power driven vessels, "A" and "B" , are meeting on a river as shown in illustration D041RR below and will pass about 1/4 mile apart. What action should the vessels take?

Correct Answer: Option D — The vessels should exchange two blast whistle signals and pass starboard to starboard.

Inland Navigation Rules 34(a) mandate that power-driven vessels meeting in inland waters within half a mile of each other must exchange sound signals. A starboard-to-starboard passing requires sounding two short blasts to clearly communicate the passing intention and ensure mutual agreement.