Commercial Driver's License (CDL)
There are three Commercial Driver's License (CDL) certifications: Class A, Class B and Class C. Class A vehicles include tractor trailers, truck and trailer combinations, tank vehicles, etc. Class A vehicles include straight trucks, box trucks, large buses, and dump trucks, while Class C vehicles include double/tripe trailers, buses, tank trucks, HazMat vehicles. A Class A license is considered the “universal” CDL.
