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For operation of a commercial motor vehicle, (Classes A, B or C), a driver may also obtain one or more endorsements. The Class D license can also have a school bus endorsement if the vehicle is designed to carry less than 16 persons including the driver. Each endorsement requires a special knowledge test when originally issued.
The school bus "S" endorsement requires a knowledge and driving skills test when originally issued and upon every renewal. The passenger "P" endorsement requires a driving skills test when originally issued. The Patriot Act requires a background check, including fingerprinting, for all drivers renewing or transferring the "H" endorsement for the first time. Drivers are also required to complete form MV3735, the Hazardous Materials Endorsement Application. Successful completion of the "H" knowledge test is also required.
Wisconsin endorsements are:
- T = Double/triple trailers
- N = Tank vehicles
- H = Hazardous materials
- S = School bus
- P = Passenger vehicle
- F = Farm service (Restricted CDL)
Questions? Contact us: Wisconsin DMV email service
Last modified: August 31, 2011
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