The International Regulations for Preventing Collisions at Sea (COLREGS) are vital for maritime safety as you must be able to identify vessels during the day by their special shapes, and at night by their lights. 

Understanding your obligations and the obligations of other vessels is essential. Enhanced illustrations provide a clear and authoritative explanation of each regulation, helping any seafarer understand their responsibilities. 

Split into themes (i.e restrcited visability), readers are lead through the regulations by rule order. Chapters include:

• Assessing the Risk
• Who Gives Way?
• Restricted visibility
• Lights and Shapes
• Sound and Light Signals