Towing & Ship-Assist · Lights — Rigid Composite Unit
A tug rigidly connected to a barge in a composite unit (e.g., an ITB) is lighted as:
- AA vessel towing astern
- BTwo separate anchored vessels
- CA vessel not under command
- DA single power-driven vessel of the combined length✓ Correct
Explanation
When a pushing vessel and the vessel pushed ahead are rigidly connected as a composite unit, they are regarded as a power-driven vessel and exhibit the lights of one, based on the combined dimensions.
Authority: COLREGS/Navigation Rules, Rule 24(b)
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