In this course you will learn the international rules for navigation, the so-called COLREGs (collision regulations). The course will explain rule-by-rule what the regulations are about. The course will go through a brief history of the COLREGs, as well as rules regarding sailing and steering, lights and shapes, and sound and light signals. Where needed, the rules will be explained with illustrations. After each section, there is a multiple choice quiz, where you can test your knowledge. The course is suitable for any boater or sailor, who wants to know what the collision regulations are about.