Michigan oversize permit office
Michigan Department of Transportation (MDOT) - Transport Permits Unit. Call 517-241-8999, select option 2, Monday through Friday 7:30 a.m. through 4:30 p.m. excluding state holidays Eastern time.
From Michigan's own pages, checked 2026-10-24. Fees and rules change: the state's page is the last word.
- Apply online
- MiTRIP (Michigan Transport Routing and Internet Permitting System), via the MDOT Permit Gateway (MPG)Source
- How to get one
- Apply online in MiTRIP through the MDOT Permit Gateway and pay by card or e-check, or use a permit service after you register with the Gateway.
- Single trip fee
- Single Trip Permit: $15.00 for a load that is over-dimension only, legal in weight; $50.00 for a load that is over-dimension and/or over legal axle weightSource
- Legal without a permit
- Width 102 inches on designated highways; 96 inches on non-designated highways · Height 13 feet, 6 inches · Length Semitrailer (including load) 53 feet on designated highways, 50 feet on non-designated highways; truck-tractor and semitrailer combination: no limitation · Weight 80,000 lbs. gross under the Bridge Gross Weight Formula; heavier vehicles are governed by Michigan's maximum axle loadingsSource
- Superloads
- Loads over 16 feet wide, 15 feet high or 150 feet long are superloads; send a letter, MiTRIP application and route survey to the Lansing office at least 10 working days before the move.Source
- How fast
- Online single trip permits are handled in the order received and are usually issued within 12 business hours; you can apply up to 7 business days ahead.Source
When you can move
- Daylight
- Daylight hours only, Monday to Friday: from half an hour before sunrise to half an hour after sunset.Source
- Weekends
- Weekend moves are allowed only for loads up to 10 ft wide, 14 ft high and 90 ft long (not mobile or modular homes): all day Saturday and until 3 p.m. Sunday, if you select weekend travel on the permit.
- Holidays
- New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day. No moves from noon the day before until daylight the day after the holiday; when it falls on a Friday or Monday, from noon before the three-day weekend until daylight the day after it (mobile homes and modules: until noon the day after). Next datesSource
- Rush-hour curfews
- 1 in Michigan, such as Genesee, Ingham, Jackson, Kalamazoo, Kent, Macomb, Muskegon, Oakland, Saginaw, Washtenaw and Wayne counties (when special provision 15 is listed on the permit): No movement 7-9 a.m. and 3-6 p.m. All of them