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COLREGs
The International Regulations for Preventing Collisions at Sea — who gives way, what the lights mean, how to read the buoys, and what that horn is telling you.
Who gives way — at a glance
Head-onRule 14
Both alter to starboard
CrossingRule 15
Vessel with the other on her starboard side gives way
OvertakingRule 13
The overtaking vessel gives way
Power vs sailRule 18
Power gives way to sail
Sail vs sailRule 12
Port tack gives way to starboard tack
Same tackRule 12
Windward gives way to leeward
Pecking order — Rule 18
- Not under command
- Restricted in ability to manoeuvre
- Constrained by draught
- Fishing
- Sailing
- Power-driven
Each vessel keeps clear of those to its left.
General
Any visibility
In sight of one another
Restricted visibility
Ready to test this chapter against the clock?