Day Skipper revision module 5 of 17
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COLREGs
International Regulations for Preventing Collisions at Sea — steering rules, lights, and shapes.
Steering and sailing rules (Rules 5, 7, 8, 9, 10, 12–19)General rules (all other rules)
9 guided lessons · 18 practice questions · 12 flashcards
3 outcomes · self-guided revision
- Use the COLREGs as a decision sequence: establish visibility, build the traffic picture, decide whether collision risk exists, identify the applicable encounter rule and monitor the result.
- Organise a continuous lookout that combines sight, hearing and every appropriate available means without allowing AIS, radar or autopilot to become a substitute for attention.
- Determine collision risk from repeated, systematic observations while recognising the limits of compass bearing, radar, AIS and a single CPA value.
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Authority cluster
Study this topic deliberately
- Secure outcome
- Identify the situation, establish risk and choose an early, obvious action.
- Common mistake
- Jumping to a vessel hierarchy before identifying the governing rule and both vessels' duties.
- Best next practice
- Explain why the action is safe, then test the same rule from a different aspect.