Wisconsin CDL practice test
The CDL general knowledge test follows federal standards, so these questions apply in Wisconsin just as they do nationwide — it is the same test that earns your WI commercial learner's permit (CLP). Below the test you'll find the Wisconsin-specific steps to actually get licensed.
Your trailer is hung up on a raised crossing and will not move. What do you do first?
Wisconsin endorsement tests
General knowledge is the test above. Each endorsement has its own written test and its own question pool — practise the ones your job needs, with the WI steps on each page.
Getting your CDL in Wisconsin
In Wisconsin, apply through the state licensing agency (WI DMV / DOT). The core steps are the same across states:
- Get a valid WI driver's license and provide required identity documents.
- Pass the DOT physical with a certified medical examiner and carry your medical card.
- Pass the written knowledge tests (general knowledge plus any endorsements you need).
- Hold your commercial learner's permit (CLP) for the required waiting period.
- Complete Entry-Level Driver Training (ELDT) with a registered provider, if required.
- Pass the skills test — pre-trip inspection, basic controls, and road test.
Exact fees, permit hold times, and document requirements are set by Wisconsin. Confirm the current details with the WI licensing agency before you go.
What is different in Wisconsin
Licensing in Wisconsin runs through the Wisconsin Department of Transportation, Division of Motor Vehicles. The part that catches people out is not the test — it is the medical certificate, because the way it reaches the state changed in 2025.
Wisconsin moved before the federal deadline. Since 13 April 2025 FMCSA passes your "Fed Med" card information to the Wisconsin DMV automatically within 48 hours of the exam, and the DMV no longer accepts paper, email, faxed or uploaded certificates. The one exception is historical: an exam performed before 13 April 2025 still has to be sent in by email (fedmed@dot.wi.gov), fax (608) 261-8201, or post — call (608) 267-2290 for details.
Wisconsin calls the four categories "tiers"
Tier 1 is non-excepted interstate, Tier 2 excepted interstate, Tier 3 non-excepted intrastate, Tier 4 excepted intrastate. Tier 1 is the flexible one — it covers you in state and out. Tiers 1 and 3 require a valid examination on file with the DMV at all times.
Wisconsin moved to electronic medical certification on 13 April 2025. The Wisconsin DOT physical page has the rest — what the exam checks, what happens if your certification lapses, and the WisDOT DMV contacts worth having.
Official state source: Wisconsin DMV — CDL medical certification (Fed Med) and tiers of operation· reviewed 2026-08-29
Don't forget the DOT physical
A valid medical certificate is required before you can be licensed. Read our DOT physical guide to know what the exam checks and how to pass it the first time.