How to Get a CDL in Wisconsin: Permit, Skills Test, and Endorsements

To get a CDL in Wisconsin, you need to hold a regular Wisconsin driver’s license, meet the minimum age, complete federally required entry-level driver training, pass a DOT medical exam, obtain a Commercial Learner Permit by passing the written knowledge tests, hold that permit at least 14 days, pass a three-part skills test, and then apply in person at a DMV service center. The license fee is $74, prorated to match your existing license expiration date. Start to finish, the process typically runs from several weeks to a few months.

Before You Start

You need a valid Wisconsin Class D driver’s license in hand before beginning the CDL process. The minimum age is 18 for driving a commercial vehicle strictly within Wisconsin. Interstate driving and hauling hazardous materials require you to be at least 21.¹

Decide next which class you need, because it determines which tests you’ll take:

Class A: Combination vehicles with a gross combined weight rating of 26,001 pounds or more when the towed unit exceeds 10,000 pounds. Tractor-trailers.
Class B: Single vehicles weighing 26,001 pounds or more, or those towing a unit of 10,000 pounds or less. Dump trucks, large buses, straight trucks.
Class C: Vehicles designed to carry 16 or more passengers including the driver, or vehicles hauling placarded hazardous materials that don’t fall into Class A or B.

A Class A license also lets you operate Class B and C vehicles, and a Class B covers Class C. If you’re uncertain, testing into Class A gives you the widest range of jobs.

Entry-Level Driver Training

Federal law requires most first-time applicants to complete Entry-Level Driver Training before taking the skills test. ELDT applies if you’re getting a Class A or Class B CDL for the first time, upgrading from Class B to Class A, or adding an H, P, or S endorsement.² The training must come from a provider listed on FMCSA’s Training Provider Registry at tpr.fmcsa.dot.gov. Unlisted programs cannot certify your completion, and without that certification the state won’t let you schedule a skills test.³

ELDT combines classroom theory (vehicle systems, safe driving practices, federal regulations) with behind-the-wheel instruction. Federal rules don’t set a fixed number of hours; your training provider decides when you’re ready to test. Tuition at private truck driving schools generally runs from roughly $1,500 to $10,000, depending on program length and CDL class. Community colleges and employer-sponsored programs sometimes offer cheaper paths.

If you held a CDL or the relevant endorsement before February 7, 2022, you’re exempt from ELDT for that license or endorsement.⁴

The DOT Medical Exam and Self-Certification

Every CDL applicant must pass a medical examination from a provider on FMCSA’s National Registry of Certified Medical Examiners. The exam covers vision, hearing, blood pressure, and general physical fitness. A passing result gets you a medical examiner’s certificate valid for up to 24 months, though the examiner may issue a shorter certificate to monitor a condition like high blood pressure.⁵

Wisconsin also asks you to self-certify the type of driving you plan to do. The main split is between interstate and intrastate operations, and whether your situation requires a federal medical card on file with the state. Most CDL holders driving interstate fall into Tier 1 and must submit their medical certificate to the DMV. Some operations, such as school buses, government vehicles, or farm custom operations, fall into categories that don’t require filing the card with WisDOT, though you may still need one for other reasons.⁶

Getting Your Commercial Learner Permit

The Commercial Learner Permit (CLP) is the practice document that lets you drive a commercial vehicle on public roads and eventually take the skills test. You get one by passing the written general knowledge test at a Wisconsin DMV service center. If you’re planning endorsements, you can take those knowledge tests at the same visit.

The general knowledge test for Class B and C applicants has 50 questions covering vehicle operation, safety rules, traffic laws, and basic hazardous materials awareness. You need at least 80% correct to pass.² Class A applicants take additional questions on combination vehicles. Each endorsement (air brakes, hazmat, passenger, school bus) has its own separate test. If you fail, there’s a one-day waiting period before you can retest. The Wisconsin Commercial Driver’s Manual, free from WisDOT, covers everything on the tests, and appointments are strongly recommended since walk-in availability varies.

While holding the CLP, you can drive a commercial vehicle only with a properly licensed CDL holder in the front passenger seat (or the first row behind you for passenger vehicles) who holds the correct class and endorsements for that vehicle. The CLP is valid for up to one year. If it expires before you pass the skills test, you’ll retake the knowledge tests to get a new one. You cannot carry passengers, haul hazardous materials, or operate a loaded tanker on a CLP, regardless of any endorsements shown on it.⁷

Passing the Skills Test

You must hold the CLP for at least 14 days and complete ELDT (if required) before scheduling the skills test.² Wisconsin uses authorized third-party examiners rather than state DMV employees for skills testing, and you’ll bring a vehicle matching the class you’re testing for.

The test has three parts:

Vehicle inspection: You walk around the vehicle explaining the function and condition of components, including an under-the-hood inspection. The examiner is checking whether you can identify problems before hitting the road.
Basic controls: Exercises like straight-line backing, offset backing, and alley docking. This is where practice time pays off; backing a trailer into a tight space is the skill new drivers struggle with most.
Road test: You drive in real traffic, demonstrating turns, lane changes, intersection approaches, and general safe handling.

Third-party examiners can charge up to $150 for the full three-part test completed in one session, or up to $50 per segment if you need to retake only one portion. Examiners may also charge a $15 no-show fee per scheduled segment if you miss an appointment without advance notice, and some charge extra if they supply the test vehicle.⁸

Applying for the License

Once you’ve passed all knowledge and skills tests, apply in person at a Wisconsin DMV service center. Bring:

Proof of identity and U.S. citizenship or legal presence
Proof of your Social Security number
Your valid Wisconsin driver’s license and Commercial Learner Permit
Your current federal medical card

The issuance fee is $74, which includes your Class D authorization plus any H, N, P, or T endorsements you qualified for at the same time. Adding an S (school bus) endorsement costs $5 more. The $74 breaks down as a $64 base fee plus a $10 license issuance fee, prorated based on time remaining on your existing Wisconsin license.⁹ The DMV accepts cash, check, and credit or debit cards.

Endorsements for Specialized Hauling

Endorsements expand what your CDL covers. Each requires its own knowledge test, and some require a separate skills test.

H (Hazardous Materials): Required for hauling placarded hazmat. Requires a TSA background check with fingerprints in addition to the knowledge test. TSA recommends starting at least 60 days before you need the endorsement because processing can take over 45 days. The fee is $85.25 for new and renewing applicants and is valid for five years.¹⁰
N (Tank Vehicles): Liquid or gas tankers.
P (Passenger): Vehicles carrying 16 or more passengers.
S (School Bus): School bus operation. Adds $5 to the base CDL cost.
T (Double/Triple Trailers): Pulling more than one trailer at a time.

Keeping Your CDL Valid

A Wisconsin CDL is valid for eight years and renews in person at a DMV service center. There’s no online renewal for commercial licenses. The renewal fee is $74.¹¹

Your DOT medical certificate must stay current for the entire life of the CDL, which for most drivers means re-examination every two years or on whatever shorter schedule the examiner set.⁵ Submit each updated certificate to the Wisconsin DMV. If the medical certificate lapses, your CDL loses its certified status and you can’t legally drive commercially until you fix it.

CDL holders aren’t technically required to register with the FMCSA Drug and Alcohol Clearinghouse on their own, but any employer hiring you must run a full query of your Clearinghouse record before you start, and you have to provide electronic consent through the system for the query to go through.¹² Setting up your account through login.gov before you start job hunting saves time.

One boundary worth knowing: certain offenses can suspend or permanently revoke a CDL, and the penalties apply whether you were driving a commercial vehicle or your personal car. A first major offense (DUI, leaving the scene, using a vehicle to commit a felony, or refusing a chemical test) brings a one-year disqualification, or three years if you were hauling hazmat.¹³ A second major offense triggers lifetime disqualification, and drug trafficking with a commercial vehicle is a lifetime disqualification with no reinstatement. Serious traffic violations stack too: two within three years is a 60-day disqualification, three within three years is 120 days.¹⁴

1
Wisconsin State Legislature. Wisconsin Statutes 343.05 – Operating Privilege Required, Exceptions
2
Wisconsin Department of Transportation. Commercial Driver License (CDL) Requirements
3
FMCSA. Training Provider Registry
4
FMCSA. Entry-Level Driver Training (ELDT)
5
Federal Motor Carrier Safety Administration. DOT Medical Exam and Commercial Motor Vehicle Certification
6
Wisconsin Department of Transportation. Tier of Operation – Self Certification Categories
7
eCFR. 49 CFR 383.25 – Commercial Learner’s Permit (CLP)
8
Wisconsin Department of Transportation. CDL Third Party Testers
9
Wisconsin State Legislature. Wisconsin Code 343.21 – License Fees
10
Transportation Security Administration. HAZMAT Endorsement
11
Wisconsin Department of Transportation. DMV Fees
12
Federal Motor Carrier Safety Administration. Are CDL Drivers Required to Register for the Clearinghouse?
13
Wisconsin State Legislature. Wisconsin Statutes 343.315 – Commercial Motor Vehicle Disqualification
14
eCFR. 49 CFR Part 383 Subpart D – Disqualification of Drivers