This endorsement allows you to aperte a tank vehicle (a vehicle that transports liquids or gasses in bulk.) This endorsement allows you to transport students in a full-sized school bus.Prior to obtaining an S endorsement, a P endorsement must be earned.

This test covers all you need to know about driving vehicles that can carry hazardous materials, such as poisonous liquids or materials, explosives and radioactive materials. If you want to operate a vehicle with more than one trailer attached (doubles or triples), you will need to pass a doubles and triples test.

This Combination endorsement covers both Tanker and Hazardous Materials. This test will test your knowledge of air brakes and other vehicle components and systems. If your CDL application requires an air brake endorsement, you will need to pass an air brakes test. Includes questions on road signs, traffic laws, safe driving practices, vehicle equipment, and other important topics. Type of EndorsementĮven though technically it's not an endorsement, it's the first of several tests that you will have to complete in order to get your CDL. Learn more about CDL endorsements and restrictions. You'll need to pass a separate knowledge exam and/or road exam for each endorsement you want to get. The more endorsements you hold, the greater your chances to make more money and advance your career. Endorsements allow you to drive certain vehicles or groups of vehicles such as single or combination trucks, tankers, doubles, school buses and passenger vehicles.

Source: Federal Motor Carrier Safety Administration.CDL Classes and Endorsements Overview (April 2022):Īs you earn your Class A, Class B or Class C CDL, you can also earn endorsements. A Class C driver’s license is required to drive any single vehicle, or combination of vehicles, that does not meet the definition of Class A or Class B but is designed to transport 16 or more passengers, including the driver.Ī Class C commercial driver's license is also required to drive vehicles that do not meet Class A or B that is transporting hazardous material and is required to be placarded or is transporting any quantity of a material listed as a select agent or toxin.

Class c license test b