This CDL license training course is designed for commercial motor vehicle drivers who currently hold a Class B CDL and are seeking to upgrade to a Class A CDL. The Class A CDL is generally required to operate heavier vehicles with a combination of truck and trailer, such as a tractor-trailer, whereas a Class B CDL generally authorizes the driver to operate heavier straight trucks. Throughout this online ELDT theory course, you will learn how to meet all theory (knowledge) requirements listed in the Code of Federal Regulations (CFR) 49 CFR Part 380, Special Training Requirements. It includes sections covering basic operation, safe operating procedures, advanced operating practices, vehicle systems and reporting malfunctions, and non-driving activities. Upon completion of this course, your completion record will be uploaded to the U.S. Department of Transportation's (DOT) TPR. You can take your state's CDL test upon completing other federal training requirements, such as behind-the-wheel training. Those who successfully take the CDL test will be issued a state CDL and may be eligible to be hired by companies that operate Class A trucks in commerce.