Mississippi oversize permit office
Mississippi Department of Transportation (MDOT), Permit & Motor Carrier Division. Call 601-359-1717 Central time.
From Mississippi's own pages, checked 2026-10-24. Fees and rules change: the state's page is the last word.
- Apply online
- Express PassSource
- How to get one
- Make an account in MDOT's Express Pass website and order the permit there; call the Permit Division with questions.
- Single trip fee
- A Single Trip – Oversize Permit costs $10.00. Overweight and oversize/overweight single trip fees vary with the weight of the load and the miles traveled in Mississippi.Source
- Legal without a permit
- Width 8 feet 6 inches (102 inches) · Height 13 feet 6 inches · Length 99 feet overall; trailer 53 feet · Weight 80,000 pounds grossSource
- Superloads
- Your load is a superload if it is over 17 feet wide, 121 feet long, 15 feet 7 inches tall, or weighs 189,999 pounds or more.Source
When you can move
- Daylight
- Loads up to 12 ft wide may move sunrise to sunset; loads over 12 ft wide may move only from 30 minutes after sunrise to 30 minutes before sunset (National Weather Service times). No over-width moves in bad weather.Source
- At night
- Night moves may be permitted for loads up to 12 ft wide, 150,000 lb, 99 ft long and 13 ft 6 in high (height depends on route), with at most 4 ft rear overhang; 10 ft wide or more needs an escort at night.
- Holidays
- New Year's Day, Memorial Day, Independence Day, Labor Day, Thanksgiving Day, Christmas Day. No moves after 12 noon on the day before the holiday, or on the holiday itself, unless the permit says otherwise. Next datesSource