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Rules of the Road

Rule 15 — Crossing Situation

Appears on 85% of examsDifficulty 3/567 drill questions

On the paperQ100 / Q30050 questions90% to pass, 5 wrong allowed

Authoritative sources#

Every answer on this topic traces back to the public rule corpus below.

33 CFR 83.15COLREGs Rule 15

Source excerpts#

33 CFR §83.15

Crossing situation (Rule 15). (a) When two power-driven vessels are crossing so as to involve risk of collision, the vessel which has the other on her starboard side shall keep out of the way and shall, if the circumstances of the case admit, avoid crossing ahead of the other vessel. (b) Notwithstanding paragraph (a) of this Rule, on the Great Lakes, Western Rivers, or water 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.

COLREGs Rule 15

Crossing Situation When two power-driven vessels are crossing so as to involve risk of collision, the vessel which has the other on her own starboard side shall keep out of the way and shall, if the circumstances of the case admit, avoid crossing ahead of the other vessel. Relationship to the Inland Rules: Inland Rule 15 differs from this rule — compare against 33 CFR 83.15 before answering a question that turns on which set applies.

Practice this topic#

One real exam question on this topic, cited to source. No sign-up.

Rule 15 — Crossing Situation

Under the Inland Rules, two power-driven vessels are crossing a river. Vessel A is ascending the river; Vessel B is crossing the river. Which vessel keeps out of the way?

Study this topic#

This guide is the exam-facing view of the topic: what it is tested on and which sources it comes from. The lesson explains the idea; the drill tests it.

The full lesson covers this topic with citation popovers, and there are 67 drill questions behind it.

Drill Rule 15 — Crossing Situation against the real exam.

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