COLREGs, rule by rule
The COLREGs, rule by rule.
The International Regulations for Preventing Collisions at Sea: 41 rules in six parts, and four annexes. Each page explains one rule in plain English, quotes the words that matter, and shows how it comes up in an MCA oral.
Part A: General
Part B, Section I: Conduct of vessels in any condition of visibility
Part B, Section II: Conduct of vessels in sight of one another
Part B, Section III: Conduct of vessels in restricted visibility
Part C: Lights and shapes
- Rule 20 Application
- Rule 21 Definitions
- Rule 22 Visibility of lights
- Rule 23 Power-driven vessels underway
- Rule 24 Towing and pushing
- Rule 25 Sailing vessels underway and vessels under oars
- Rule 26 Fishing vessels
- Rule 27 Vessels not under command or restricted in their ability to manoeuvre
- Rule 28 Vessels constrained by their draught
- Rule 29 Pilot vessels
- Rule 30 Anchored vessels and vessels aground
- Rule 31 Seaplanes
Part D: Sound and light signals
Part E: Exemptions
Part F: Verification of compliance with the provisions of the Convention
Annexes: Technical annexes
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