As a truck driver, you require a special type of driver's license in order to legally meet the requirements to drive a truck on the road. It is known as a CDL, commercial driver’s license, and there are three types. A, B, and C are the different classes that a trucker can hold. Depending on what they plan on transporting, the DMV and their employer will require them to carry a certain class. A CDL is not only essential for truck driving.