CDL Permit Information

Wisconsin Commercial Driver's Manual

Sections to study: General Knowledge, Air Brakes, and Passenger Class B License.

Driver's Manual Driver's Manual Audio Version

Commercial Driver's License (CDL) Prep Apps

Prepare for the CDL General Knowledge and various endorsement exams on your mobile device.

CDL Prep App featuring a steering wheel over a blue background for Apple.

CDL Prep for Apple iOS

CDL Prep App featuring a steering wheel over a white background for Google.

CDL Prep for Google Play

New CDL Holder

  • Take the 3 permit tests- General Knowledge, Air Brakes, and Passenger
  • Choose Tier 4 for the license 
  • K Restriction will be placed on the license, and no Fed-Med is required

Have a CDL

No passenger endorsement

  • Take the passenger written test / pass test
  • If you have a Tier that requires a Fed-Med, you can keep it or forfeit it and change your Tier.
  • Form 3230 at DMV, Tier of operation. 
  • Tier 4 and K restriction does not require a Fed-Med

With Fed Med Requirement (similar to above)

  • Keep or forfeit your Tier, your choice, change tier with MV 3230
  • If you keep the Fed Med Required Tier, Fed-Med renewal will be at the employee's cost
  • If a Fed Med is required for a medical reason, it must have a valid Fed Med with a license
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