Truck Driving Career Specialties

Truck Driving Career Specialties

Professional truck drivers have several specialties to choose from. In addition, there are classes and endorsements that individuals may need to earn in order to drive particular vehicle types. We've provided information below to help students understand the differences.


Bus drivers transport people; school bus drivers drive children to and from school and events; transit drivers drive people to stops on a specified city route; while other drivers can transport people between cities or drive for trips and tours.

Heavy Truck & Tractor-Trailer

Heavy truck and tractor-trailer drivers drive vehicles having a GVWR of 26,000 pounds or more to transport materials that are packaged, liquid, or loose.

Light or Delivery Services Truck

Light and delivery services truck drivers drive vehicles having a GVWR under 26,000 pounds and generally work within a specified local area, and load and unload the merchandise they drive.

Classes & Endorsements

Classes are the types of licenses a truck driver may test for. Endorsements are complementary to the licenses. A school bus driver, for example, would need a Class C license with an S endorsement.

  • Class A: A combination of vehicles with a gross vehicle weight rating (GVWR) greater than 26,000 pounds being towed by a vehicle with a GVWR in excess of 10,000 pounds. Class A drivers may also operate those vehicles that fall under classes B and C.
  • Class B: A single unit with a GVWR greater than 26,000 pounds, as well as any vehicle towing another vehicle not in excess of 10,000 pounds. A class B driver may operate a class C vehicle.
  • Class C: A single or combination vehicle designed for the transportation of 16 or more people, or one used to transport hazardous materials.
  • Endorsement G: Government
  • Endorsement H: Hazardous materials
  • Endorsement N: Tanker vehicle
  • Endorsement P: Bus passenger
  • Endorsement S: School bus
  • Endorsement T: Double and triple trailers
  • Endorsement X: Combination hazardous materials and tanker

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