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USCG Exam PracticeRule 9 — Narrow Channels

On the Great Lakes, a downbound power-driven vessel with a following current and an upbound power-driven vessel are meeting in a narrow channel. The upbound vessel disagrees with the proposed manner of passage. Under Inland Rule 9(a)(ii), what is the correct action for the upbound vessel?

  1. A. The upbound vessel may counter-propose an alternative passage and initiate her own maneuvering signals.
  2. B. The upbound vessel shall sound the danger signal and both vessels must stop and agree by radio before proceeding.
  3. The upbound vessel shall hold as necessary to permit safe passing as directed by the downbound vessel.Correct
  4. D. The upbound vessel assumes the right-of-way because the downbound vessel failed to obtain agreement before initiating signals.

Why C is correct

Inland Rule 9(a)(ii) assigns right-of-way to the downbound vessel with a following current on the Great Lakes and Western Rivers. The upbound vessel shall hold as necessary to permit safe passing; the Rule does not provide the upbound vessel authority to counter-propose or assume right-of-way. If in doubt, the vessel may use the doubt/danger signal under Rule 34(d).

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On the Great Lakes, a downbound power-driven vessel with a followin… — USCG Exam Practice · CaptainsGround