When applying for a CDL, you will apply for one of these types of licenses:
Class A: Holders are authorized to drive any combination of vehicles with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, provided the GVWR of the vehicle being towed is in excess of 10,000 pounds.
Class B: Holders are authorized to drive any single vehicle with a GVWR of 26,001 pounds or more, and any such vehicle towing a vehicle not in excess of 10,000 pounds.
Class C: Holders are authorized to drive any single vehicle with a GVWR of less than 26,001 pounds or any such vehicle towing a vehicle with a GVWR not in excess of 10,000 pounds that:
Is designed to transport 16 or more passengers, including the driver, or designed to transport more than 10 passengers, including the driver, and used to transport students under age 21 years to and from school. Also requires medical certificate.
Transports hazardous materials which are required to be placarded in accordance with 49 CFR 172, Subpart F, as amended. Also requires medical certificate.
Note: A Class D license refers to a non-commercial license.