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USCG Exam Practice · Rule 15 — Crossing Situation

On the Western Rivers, two power-driven vessels are in a crossing situation. Vessel A is crossing the river; Vessel B is ascending the river. Under the Inland Navigation Rules, which vessel must keep out of the way?

  1. AVessel B, because ascending vessels are give-way to crossing vessels on Western Rivers
  2. BVessel A, because a vessel crossing a river must keep out of the way of a vessel ascending or descending the river✓ correct
  3. CVessel A, because it has Vessel B on its starboard side
  4. DVessel B, because the general crossing rule assigns give-way status to the vessel with the other on its starboard side

Why B is correct

33 CFR §83.15(b) provides that on the Great Lakes, Western Rivers, or waters specified by the Secretary, a power-driven vessel crossing a river shall keep out of the way of a power-driven vessel ascending or descending the river, notwithstanding the general crossing rule in §83.15(a).

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