COLREGs · Rule 15
Crossing Situation
TL;DR
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 circumstances admit, avoid crossing ahead of the other.
Why it shows up on the exam
Mnemonic: 'green over green, no problem seen' is wrong — green-on-your-starboard means you are the give-way vessel.
Authoritative source
- 33 CFR §83.15— verbatim Inland Rule text (US Code of Federal Regulations)
- International COLREGs Rule 15 verbatim text is published by the IMO. The Inland counterpart 33 CFR §83 chunk above mirrors the international wording almost verbatim.
Inland parallel
Inland Rule 15 — Crossing Situation →More from Part B-II — In Sight of One Another
Related drills
Drill COLREGs Rule 15
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