Towing & Ship-Assist · Lights — Pushing Ahead (Inland)
Under the Inland Rules, a power-driven vessel pushing ahead or towing alongside (not a composite unit) may, in lieu of a sternlight, show:
- ATwo all-round red lights
- BA flashing blue light
- CTwo towing lights in a vertical line✓ Correct
- DNo after lights at all
Explanation
A vessel pushing ahead or towing alongside shows sidelights and two towing lights (yellow) in a vertical line aft under the Inland Rules, plus the masthead lights forward — distinguishing it from a vessel towing astern.
Authority: Inland Navigation Rules, Rule 24(c)
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