COLREGs · Rule 4
Application
TL;DR
Rules in Section I apply in any condition of visibility. This includes Rules 5–10 (look-out, safe speed, collision risk, avoidance action, narrow channels, traffic schemes).
Authoritative source
- 33 CFR §83.04— verbatim Inland Rule text (US Code of Federal Regulations)
- International COLREGs Rule 4 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 4 — Application →More from Part B-I — Conduct in Any Visibility
Related drills
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