Module 5 of 17
COLREGs
International Regulations for Preventing Collisions at Sea — steering rules, lights, and shapes.
What Are the COLREGs?
The International Regulations for Preventing Collisions at Sea (COLREGs, also known as IRPCS) are the 'rules of the road' at sea. They apply to all vessels on the high seas and connected navigable waters. As a Day Skipper, you need full knowledge of the steering and sailing rules.
The regulations are divided into parts: Part A (General), Part B (Steering and Sailing Rules), Part C (Lights and Shapes), Part D (Sound and Light Signals), and Part E (Exemptions).
Key Points
- COLREGs apply to ALL vessels on navigable waters
- Part B (Steering and Sailing Rules) requires full knowledge
- Rules exist to prevent collisions — both vessels share responsibility
Rule 5 — Look-out
Every vessel shall at all times maintain a proper look-out by sight AND hearing, as well as by all available means (including radar), so as to make a full appraisal of the situation and the risk of collision.
This is one of the most fundamental rules. A good look-out means using your eyes, ears, radar, AIS, and any other means. It applies in all conditions, day and night.
Key Points
- Look-out by sight AND hearing at all times
- Use all available means including radar and AIS
- Applies in all weather and visibility conditions
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