The fourth edition of the well-respected Rules of the Road contains the latest changes to the Rules as of the date of printing. The Rules are presented in a straightforward fashion designed to be useful for all who need to learn and apply the Rules, such as recreational boaters, maritime students, and professional mariners. To achieve this, the Rules are side by side on the left-hand page and the authors comments are on the right. Differences appear in bold type. As an aid to those professionals who will be taking the Coast Guard examinations, the book includes practice questions as well as a suggested method of study.