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USCG Exam Practice · Rule 23 — Power-driven Vessel Underway (lights)

A power-driven vessel of less than 12 meters in length is underway at night. In lieu of the standard lights prescribed for a power-driven vessel underway, she may exhibit which combination?

  1. AA masthead light and a sternlight only
  2. BAn all-round white light and sidelights✓ correct
  3. CSidelights and a sternlight only
  4. DAn all-round white light only

Why B is correct

33 CFR §83.23(d) permits a power-driven vessel of less than 12 meters in length to exhibit, in lieu of the lights in paragraph (a), an all-round white light and sidelights. Sidelights are still required; an all-round white light alone is insufficient.

Cited:33 CFR §83.23(d)

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