The COLREGS (IRPCS) are the internationally recognised rules that govern how vessels interact at sea to prevent collisions.

This online course teaches the rules in a clear, structured, and practical way, with the content split into three manageable modules so it is easy to complete in sections at your own pace.

It is essential knowledge for anyone operating a vessel and a core requirement for RYA Yachtmaster and commercial qualifications.

You will build the understanding needed to recognise situations quickly, interpret vessel responsibilities correctly, and make safe, confident decisions by day, by night, and in restricted visibility.

The course concludes with an end-of-course exam to test your knowledge and reinforce learning.

Course content

Module 1: COLREGS Foundations

• Application, responsibility, and key definitions
• Understanding vessel types and terminology

Module 2: Rules & Vessel Interactions

• Safe speed and lookout
• Risk of collision
• Action to avoid collision
• Narrow channels and traffic separation schemes
• Head-on, crossing, and overtaking situations
• Sailing vs power-driven vessels
• Stand-on and give-way responsibilities

Module 3: Lights, Signals & Exam Preparation

• Identifying vessels at night
• Understanding vessel status and hierarchy
• Key exam light patterns
• Manoeuvring signals
• Restricted visibility (fog signals)
• Distress signals
• Knowledge checks throughout
• Exam-style questions
• Techniques to improve memory and recall

✔ Structured online learning modules
✔ Clear summaries of key COLREGS rules
✔ Knowledge checks and self-assessment
✔ Downloadable PDF summary document
✔ End-of-course test
✔ Certificate of course completion
✔ 12 months course access

This course is suitable for:

• Yachtmaster Offshore and Ocean candidates
• Commercial skippers (power and sail)
• Superyacht crew preparing for exams
• Recreational boaters wanting to improve safety and confidence
• Anyone progressing beyond basic boating knowledge

No prior experience is required, although it is ideal alongside Day Skipper or Yachtmaster theory.

• RYA Day Skipper Theory
• RYA Yachtmaster Theory