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Wisconsin trucking rules

Fees, CDL costs, weight and size limits, chain laws and new bills for truckers and trucking companies in Wisconsin. Updated 2026-10-22.

Must-know rules · Weight, oversize & chains · Fees · Bills

Must-know rules

Wisconsin has no separate truck speed limit in the statute text I found. Its distinctive points are the 10,000-lb weigh-station stop rule, a state ban on handheld phone use by CDL drivers, and IRP/IFTA run through WisDOT's WisCRS system, with no Department of Revenue filing for interstate carriers. I could not confirm official pages for idling limits, chain or traction rules, hazmat routing or tunnels, or a weight-distance tax, so those are left out.

Researched by our AI agent from the linked sources on 2026-10-21. Always confirm with the source.

• Must knowLegal size limits and standard-permit conditions

  WisDOT's permit condition sheet lists legal limits of 45' single vehicle, 70' truck/trailer, 75' tractor/trailer, 8'6" wide and 13'6" high. The sheet is a 2019 register notice for one permit type, so confirm current limits with WisDOT.

  WisDOT Oversize/Overweight CS Permit Condition Sheet DTSD18
• Must knowAxle weight limits

  Wisconsin CMVs are limited to 20,000 lb on a single axle and 34,000 lb on a tandem axle. Gross weight limits vary with axle spacing. This WisDOT study is older, so check current statute ch. 348.

  WisDOT Safety Weight Enforcement Facility and VWIM Implementation Plan

Weight limits, oversize permits and chain laws

Our agent is still researching Wisconsin's weight, size and chain rules. Check back soon.

Fees and DOT requirements

Wisconsin's CDL is cheap for a long term: $74 for 8 years for both Class A and B, with free knowledge tests. Heavy-truck registration is expensive and rises with weight: about $670 for a 26,001 lb truck and about $2,834 for an 80,000 lb tractor-trailer. It also costs $500 once for intrastate for-hire authority (LC). I could not confirm from official sources whether Wisconsin has a weight-distance tax or a heavy-truck emissions program.

Class B CDL

$74 for 8 years (about $9.25 a year)
Commercial learner permit (180 days) is $30. Original CDL is $74, prorated for time remaining on the existing license; renewal is $74 for 8 years and includes Class D. Class upgrades are $15. Each endorsement upgrade is $5 plus a $10 issuance fee. The hazmat endorsement is $67.25, or $57.25 with a C Source

Class A CDL

$74 for 8 years (about $9.25 a year)
The fee is the same as for Class B: the schedule lists one fee for Class A, B and C, $74 original (prorated) or $74 for an 8-year renewal. The permit, endorsement, hazmat and upgrade fees are as listed under Class B. I found no official skills-test fee amount. Source

Registration, 26,001 lb straight truck

$669.90 a year Source

Registration, 80,000 lb combination

$2,834 a year Source

How registration is figured

Gross weight, not vehicle value. Motor truck fees are based on the gross weight of the vehicle including load. Truck tractor fees are based on the combined weight of tractor, semi-trailer and load. Act 15 raised the annual weight-based fees by 10% for registrations from 8,000 to 80,000 lbs, effectiv
Caveat on the two dollar figures: the official WisDOT fee-chart page (cited here) holds the post-Oct-2025 chart, but my retrieval did not show its heavy-truck rows. I took the amounts from secondary sites. The $669.90 figure (26,001-32,000 lb truck bracket) and the $2,834 figure (80,000 lb truck tractor; a straight truck at 80,000 lb is $2,816) come from those sites only. The pre-increase official Source

Intrastate operating authority

Intrastate Local Cartage (LC) authority (passenger carriers use PC authority). $500, one-time.
Intrastate operating authority is needed to haul for hire inside Wisconsin, for Wisconsin-based carriers and for interstate for-hire carriers alike. The DOT motor carrier fee page lists LC at $500 as a one-time fee, and PC at $50 as a one-time fee. The application is form MV2843, and proof of insurance must be on file before applying. A USDOT number and business registration with the Department of Source

State DOT requirements

• Must knowUSDOT number for intrastate carriers

  Wisconsin adopts the federal USDOT number rule (49 CFR 390.19) through Trans 327.03. Most commercial vehicles need a USDOT number, and registration will not be processed without it. The state has no separate state DOT number that I could find; the number is the federal USDOT number.

  Wisconsin State Patrol Motor Carrier Investigation Unit - Do I need a USDOT number?

See all 4 DOT requirements with full access

Fees change; confirm with the linked state source. Compare all states.

New Wisconsin trucking bills

Enacted signed into law · Pending still moving through the legislature · Did not pass

• Pending WI SB783: The commercial driver training grant program. (FE) Published 4-3-2026 · 2026-04-06

Bill data from LegiScan (CC BY 4.0).