COLREGs · Rule 20
Application (Lights and Shapes)
TL;DR
Lights are exhibited from sunset to sunrise and in restricted visibility. Shapes are exhibited by day. Annex I governs the technical particulars.
Authoritative source
- 33 CFR §83.20— verbatim Inland Rule text (US Code of Federal Regulations)
- International COLREGs Rule 20 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 20 — Application (Lights and Shapes) →More from Part C — Lights and Shapes
Related drills
- Rule 21 — Definitions (Lights)
- Rule 22 — Visibility of Lights
- Practise Rule 23 — Power-driven Vessel Underway
- Practise Rule 24 — Towing and Pushing
Drill COLREGs Rule 20
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