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USCG Exam Practice · Rule 27 — NUC and RAM (lights)

A vessel engaged in dredging operations is restricted in her ability to maneuver and has an obstruction on her port side. Which lights does she exhibit on the side where another vessel may pass?

  1. ATwo all-round green lights in a vertical line✓ correct
  2. BTwo all-round red lights in a vertical line
  3. COne all-round green light
  4. DTwo all-round white lights in a vertical line

Why A is correct

33 CFR §83.27(d)(ii) requires two all-round green lights in a vertical line to indicate the side on which another vessel may pass. Two all-round red lights in a vertical line indicate the side on which the obstruction exists, per §83.27(d)(i).

Cited:33 CFR §83.27(d)(ii)

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