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COLREGs — International Rules of the Road

The 1972 Convention on the International Regulations for Preventing Collisions at Sea — 38 rules across five parts. The Inland Navigation Rules (33 CFR Part 83) parallel COLREGs almost word-for-word, with a handful of US-specific deviations on Western Rivers and the Great Lakes.

Looking for the Inland version? See the Inland Rules directory →

Part A — General

Part B-I — Conduct in Any Visibility

Part B-II — In Sight of One Another

Part B-III — Restricted Visibility

Part C — Lights and Shapes

Part D — Sound and Light Signals

Part E — Exemptions

COLREGs — All 38 International Rules of the Road · CaptainsGround