The upper of the two all-round lights on a vessel engaged on pilotage duty is ______.

A. red, with the lower light being white
B. white, with the lower light being green
C. yellow, with the lower light being white
✓ white, with the lower light being redCorrect

Why D is correct

Both the Inland and International Rules specify that the upper light is white and the lower is red. Reversing the colors or substituting other colors does not satisfy Rule 29.

Cited:33 CFR §83.29 COLREGs Rule 29

More Rule 29 — Pilot Vessels (lights) questions

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The upper of the two all-round lights on a vessel engaged on pilota… — USCG Exam Practice · CaptainsGround