Register Here Check the box below to register & continue on. Who is this online study prep course for? Individuals who wish to add a Doubles and Triples Endorsement (T) onto their CDL license to drive a CMV safely with double and triple trailers. No ELDT/FMCSA reporting required. Electronic completion certificate awarded upon passing with an 80% on the final exam. Why should you take this online study prep course? Although a course and reporting to the TPR is not required to get a doubles and triples endorsement, it is highly recommended as a driver you learn the safety knowledge to drive with more than one trailer, proper inspections, correct way to couple and uncouple. The study prep course was creatively designed to help one prepare for their 20 question Doubles and Triples Endorsement (T) test at a local licensing branch in a online condensed and informative format that is easy to access from any device, read and review practice tests. Follow the steps below to begin: Register For Our Online PREPARATION Course – Registration is simple and only takes a few minutes. You can begin the course immediately after registration. No classrooms, no lines, no waiting! Begin The Course – The course can be taken from any device, any place, anytime. We keep track of your progress. All you have to do is login and complete each lesson of the course when it fits your schedule. Complete The Course – Receive your downloadable Completion Certificate. Test your knowledge Quiz questions for each lesson are available after the content in a particular lesson has been reviewed. The questions focus on the key areas covered in the content and you’ll be able to check your answers at the end of the quiz. You’ll be able to take each quiz as many times as needed until you find the correct answer. Upon answering all questions correctly, you’ll be able to move on to the next lesson in the online prep course until all lessons are completed. After completing all lessons, you’ll be ready to move on to the final.