Book excerpt: A self-teaching aid that covers International regulations for preventing collision at sea 1972 (Colregs) or Rules of the Road, including navigation lights and related situations that could be asked within the Maritime and Coastguard Agency oral examinations for the deck certificate of competency. This book is divided into two sections. The first section contains simple explanations of the Rules of the Road, while the second section covers more than sixty situations, exam questions and model answers. Interactive navigation light identification software is also available on a companion website to offer further testing before examination. All questions are asked randomly, and will help prepare you for the oral exam. Self-teaching guide to the International regulations for preventing collision at sea 1972 (Colregs) / Maritime Coastguard Agency (MCA) Rules of the Road oral examinations Scenarios, questions and model answers help you prepare for the examination Interactive navigation light identification software on a companion website allows students to test themselves before entering exams. Visit the website at www.seamanshiptutor.com.