INLAND ONLY Which lights are required for a single barge being towed alongside?

Correct Answer: Option D — Sidelights, a special flashing light, and a stern light

33 CFR 83.24(g) (Inland Rule 24) mandates that a vessel being towed alongside must exhibit sidelights and a stern light. Additionally, if the vessel is part of a composite unit or being pushed ahead, a special flashing light is required to indicate the nature of the tow.