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USCG Exam Practice · Rule 28 — Constrained by Draft (lights)

A vessel's navigation lights and shapes may be lowered under which specific circumstance identified in the Rules?

  1. AWhen anchoring in a crowded anchorage to avoid confusion with shore lights
  2. BWhen operating in restricted visibility to reduce glare on the bridge
  3. CWhen necessary to pass under a bridge✓ correct
  4. DWhen the vessel is constrained by her draft and requires additional clearance

Why C is correct

33 CFR §83.20(f) expressly states that a vessel's navigation lights and shapes may be lowered if necessary to pass under a bridge. No other circumstance for lowering lights or shapes is identified in §83.20.

Cited:33 CFR §83.20

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A vessel's navigation lights and shapes may be lowered under which… — USCG Exam Practice · CaptainsGround