Please note: Counter hours and procedures have changed for the Oversize/Overweight Permit Unit. Learn more about these changes.

Apply for a permit

• Apply online for Wisconsin single and multiple trip permits
• Apply online for Minnesota and Wisconsin single trip permits using WINNDOT cross-border permit portal
• Contact a commercial permit service
• Mail
• Public counter

Permit information and requirements

• Determine if a permit is required
• Single trip permit information
• Multiple trip permit information
• Sign up for OSOW permit updates
• Implements of Husbandry (IoH) information
• Fluid milk product Condition Sheet 
• Hours of operation for permitted vehicles
• Escort, lighting, flagging and signage requirements
• Trans 252 - Escort vehicles
• Wisconsin Statute Chapter 348 - Vehicles - size, weight and load law
• OSOW YouTube channel

Mega loads

• Mega Load Guidelines

Forms and applications

• Oversize-overweight forms and applications

Weight restriction program

• Weight restriction programs
• Frozen road declaration
• Seasonal posted roads
• Divisible load permits
• Non-divisible load permits
• Class II roads

Seasonal weight exemptions

• Frozen road exemption for unpeeled forest products, abrasives or salt
• Section 348.175 Wis. Stats.
• Seasonal harvest exemption, section 348.17(5) Wis. Stats.
• Seasonal manure exemption, section 348.17(6) Wis. Stats.

Emergency permits, declarations and exemptions

•  No current declarations

Bridge information for routing purposes

• Bridges with height clearances less than 16'-03"
• Bridge heights less than legal on Wisconsin highways
• Bridges with weight-postings on Wisconsin highways
• Highway Structures Information System​ (HSIS)

Motor carrier enforcement and truck safety

• Hours-of-service regulation (U.S. DOT website)
• Motor Carrier Safety Assistance Program (MCSAP)
• Motor carrier enforcement
• Safety and Weight Enforcement Facilities (SWEF)
• Wisconsin State Patrol home page
• Wisconsin State Patrol Permit Support Request

Maps and publications

• Official Wisconsin highway map
• Official state trunk highway system maps
• Winter road conditions
• Wisconsin Commercial Driver’s Manual
• Wisconsin long truck operators map
• Work zones and detour information
• Work zones all states (Federal Highway Administration)

Related links:

• 511 Wisconsin Travel Information
• Comparison of Minnesota and Wisconsin OSOW permits
• Minnesota DOT oversize/overweight permits
• Motor carrier credentials
• Motor carriers and trucking

Questions about the content of this page:​