A Commercial Driver's License (CDL) is required in Wisconsin to operate commercial motor vehicles over 26,000 lbs GVWR, buses carrying 16 or more passengers, or vehicles placarded for hazardous materials. Wisconsin CDL fees start at $34 for a 8-year license. Three CDL classes are available: Class A for tractor-trailer combinations, Class B for single large vehicles, and Class C for passenger and HazMat vehicles. First-time applicants must complete Entry Level Driver Training (ELDT) through an FMCSA-registered provider before taking the skills test. All interstate CDL holders must maintain a valid DOT Medical Certificate. Test your knowledge with the Wisconsin CDL knowledge test, then pass the skills test — pre-trip inspection, basic vehicle control, and road driving — to earn your license.
Any combination of vehicles with a GCWR of 26,001 lbs or more, provided the GVWR of the towed vehicle exceeds 10,000 lbs.
Any single vehicle with a GVWR of 26,001 lbs or more, or any such vehicle towing a vehicle with a GVWR not exceeding 10,000 lbs.
Any single vehicle or combination not covered by Class A or B, designed to transport 16 or more passengers including the driver, or required to be placarded for hazardous materials.
TSA security threat assessment and fingerprinting required. Valid 5 years. Relevant for chemical plant operators along the Milwaukee industrial corridor and agricultural chemical haulers.
Required for bulk liquid or gas transport. Milk tanker operations are a major CDL use case in Wisconsin — the nation's leading cheese-producing state. Also relevant for fuel and chemical tankers.
Required for vehicles carrying 16 or more passengers including the driver. Milwaukee County Transit System, Madison Metro, Bay Area Rural Transit, and charter operators.
Requires P endorsement. Background check required. Wisconsin school bus operators must meet additional state DPI requirements.
Class A CDL required. Double trailers common on I-94, I-90, I-43, and I-41 for high-volume freight between Milwaukee, Chicago, Madison, Green Bay, and Minneapolis.
Combination of H and N endorsements. TSA background check applies. Common for fuel tanker operators and agricultural chemical haulers throughout Wisconsin.
Entry Level Driver Training (ELDT) is required by federal regulation (49 CFR Part 380, effective Feb 7, 2022) for first-time Class A or B CDL applicants, and for adding H, P, or S endorsements. Training must be completed through an FMCSA-registered provider listed in the Training Provider Registry (TPR) at tpr.fmcsa.dot.gov.
Find a registered ELDT provider in Wisconsin →Interstate CDL holders must hold a valid DOT Medical Examiner's Certificate (MEC) issued by an FMCSA-certified medical examiner, valid up to 24 months. Self-certify your operating category and submit the MEC copy to the Wisconsin DOT. Intrastate CDL holders may use Wisconsin state physical standards.
Find an FMCSA-certified medical examiner →Apply at a Wisconsin DMV service center with proof of identity, Social Security Number, and Wisconsin residency. Pass the required knowledge tests, complete ELDT through an FMCSA-registered provider, then schedule and pass the skills test. The CDL fee is $34 — one of the lowest in the US. Visit dot.wisconsin.gov for current requirements and office locations.
Wisconsin CDLs are valid for 8 years — one of the longest renewal cycles in the US. Renewal costs just $34. Your DOT Medical Examiner's Certificate must be renewed separately — typically every 24 months for most interstate drivers. The long renewal period means your medical certificate will need multiple renewals before your CDL expires.
Wisconsin dairy tanker operations require the N (Tank) endorsement since milk is transported in bulk liquid tanks. Many dairy operations also involve cleaning chemicals and other agricultural chemicals, which may require the H (HazMat) endorsement. The X (Hazmat + Tank) combination endorsement is common for drivers who haul both milk and cleaning or agricultural chemicals. A Class A CDL is required for semi-trailer tanker combinations.
Wisconsin's spring weight restriction season runs approximately February through May — one of the longer seasons in the US. County roads and state routes are posted with reduced weight limits during the freeze-thaw period. Interstate highways are generally not subject to spring restrictions. Check WisDOT at 511wi.gov for current restricted routes before routing on state routes and county roads during spring.
Yes. Wisconsin's Great Lakes ports in Milwaukee, Green Bay, and Superior (Lake Superior) handle bulk cargoes including grain, coal, iron ore, and salt. Port operations generate CDL employment for drayage, bulk commodity transport, and equipment logistics. Class A CDL is standard for most port cargo transport work. Some cargo types such as bulk chemicals may require HazMat and Tank endorsements.
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Wisconsin CDL fee is $34 for original and renewal with an 8-year renewal cycle — among the longest renewal periods and lowest costs in the US. Knowledge tests are administered by WisDOT at no additional charge. Skills test fees vary by provider. Verify current fee amounts at dot.wisconsin.gov before scheduling.
Disclaimer
The information on this page is compiled from publicly available government sources and is provided for general informational purposes only. TruckRadar is an independent search engine — we are not affiliated with any government agency and this content does not constitute legal or compliance advice. Regulations change frequently; always verify current requirements directly with the official source before making compliance decisions.
Official source: Wisconsin WI Official DMVLast reviewed: April 8, 2026