COLREG 72

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COLREG Rules: all 41 Rules of the Road

COLREG 72 contains 41 rules in six parts plus four annexes. Open any rule to read its full text, then test yourself with the free quiz for that part.

Part A

General

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  1. Rule 1Application
  2. Rule 2Responsibility
  3. Rule 3General definitions

Part B

Steering and sailing rules

Practice this part
  1. Rule 4Application
  2. Rule 5Look-out
  3. Rule 6Safe speed
  4. Rule 7Risk of collision
  5. Rule 8Action to avoid collision
  6. Rule 9Narrow channels
  7. Rule 10Traffic separation schemes
  8. Rule 11Application
  9. Rule 12Sailing vessels
  10. Rule 13Overtaking
  11. Rule 14Head-on situation
  12. Rule 15Crossing situation
  13. Rule 16Action by give-way vessel
  14. Rule 17Action by stand-on vessel
  15. Rule 18Responsibilities between vessels
  16. Rule 19Conduct of vessels in restricted visibility

Part C

Lights and shapes

Practice this part
  1. Rule 20Application
  2. Rule 21Definitions
  3. Rule 22Visibility of lights
  4. Rule 23Power-driven vessels underway
  5. Rule 24Towing and pushing
  6. Rule 25Sailing vessels underway and vessels under oars
  7. Rule 26Fishing vessels
  8. Rule 27Vessels not under command or restricted in their ability to manoeuvre
  9. Rule 28Vessels constrained by their draught
  10. Rule 29Pilot vessels
  11. Rule 30Anchored vessels and vessels aground
  12. Rule 31Seaplanes

Part D

Sound and light signals

Practice this part
  1. Rule 32Definitions
  2. Rule 33Equipment for sound signals
  3. Rule 34Manoeuvring and warning signals
  4. Rule 35Sound signals in restricted visibility
  5. Rule 36Signals to attract attention
  6. Rule 37Distress signals

Part E

Exemptions

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  1. Rule 38Exemptions

Part F

Verification of compliance

Practice this part
  1. Rule 39Definitions
  2. Rule 40Application
  3. Rule 41Verification of compliance

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