BOTH INTERNATIONAL & INLAND While underway, you see a vessel displaying the day-shapes shown in illustration D006RR below. Which action should you take?

Correct Answer: Option A — Stay clear, the other vessel is maneuvering with difficulty

A vessel displaying a ball, diamond, and ball in a vertical line is engaged in restricted maneuverability under COLREGS Rule 27(b). All other vessels must give way and keep clear of this operational classification.