Mississippi
Mississippi Truck Permits for trip, fuel tax, oversize & overweight
A truck without Mississippi IRP plates runs on the 72-hour Temporary Trip Permit, bought through truck stops with wire services or from MDOT. On fuel tax, MDOT wants the carrier's IFTA current before it issues an oversize permit. Oversize and overweight permits come from MDOT through ExpressPass, and a single trip is valid up to three days. Tell us the truck, load and route, and our permit desk handles the Mississippi paperwork.
Start here
What are you running through Mississippi?
Pick what fits your truck and load. Each answer opens the Mississippi rules and what we need from you.
Not sure which one? Call the 24/7 permit desk
(312) 395-7322- Load over 8 ft 6 in wide, 13 ft 6 in high, 99 ft long or 80,000 lbs
Oversize & overweight permits
Three-day single trips, round trips, the 365-day oversize blanket, industry blankets and superloads from MDOT. - No Mississippi IRP plates
Trip permit & fuel tax
A 72-hour Temporary Trip Permit in lieu of IRP plates, from truck stops with wire services or from MDOT. Without IFTA, we go over fuel tax with you before the trip. - Red Line or Black Line
The highway weight map
Red Line highways take up to 80,000 lbs; on Black Line highways axle groups are capped at 57,650 lbs.
Source: MDOT Permit & Motor Carrier Division Manual (January 13, 2026), MDOT Administrative Code Sub-Part 6301, MDOT Mississippi Maximum Weight Laws, MDOT over-dimensional FAQ.
Mississippi and its neighbors
How Mississippi permits differ from the states around it
Mississippi sits between Louisiana, Arkansas, Tennessee and Alabama, and the permit rules change at each of those lines.
72 hours against Louisiana's 48
Mississippi's Temporary Trip Permit runs 72 hours. Louisiana's trip permit runs 48, so a run through both states needs two different time windows.
Escorts a foot later than Arkansas
On a Mississippi two-lane road a daylight front escort starts at 13 ft wide. Across the river in Arkansas it starts at 12 ft.
Lower legal height than Arkansas
Mississippi needs a permit over 13 ft 6 in high. Arkansas allows 14 ft, so a tall load can be legal on one bank and permitted on the other.
Holiday stops start at noon the day before
Mississippi pulls permitted loads off the road from noon the day before each of six holidays. Arkansas closes the holiday itself, plus the weekend next to it when it falls on a Monday or Friday.
How it works
Your Mississippi permit in three steps
Send the load and route
Truck, trailer, dimensions, weight, origin and destination. Your fleet details are saved for next time.
We check and file
Our permit desk checks the Mississippi rules for your load and files with MDOT Office of Enforcement.
Get your permit
You get the permit PDF, a written route and an interactive route map to share with the driver.
What will an oversize permit in Mississippi cost?
Enter your pickup and delivery locations, choose your permit type, and compare estimated permit costs across route options.
- Oversize and overweight permits across the lower 48 and DC
- State-by-state fee breakdown for each route option
- Order your permit or talk to a specialist
FAQ
Mississippi permit questions
How long does a Mississippi Temporary Trip Permit last?
72 hours. It stands in for IRP plates on a truck that is not registered for Mississippi.
Where can a carrier pick up a Mississippi trip permit?
Through truck stops that carry wire services, or from MDOT. We file it with the rest of the trip so it is in place before the truck enters the state.
Does MDOT look at my IFTA before it issues an oversize permit?
Yes. The carrier's IFTA has to be current before MDOT issues an oversize permit. We check it first, so the request is not held up.
Who stops and checks permitted loads in Mississippi?
The Department of Public Safety enforces permit conditions on the road. MDOT issues the permits and sets the route, escort and travel-time rules.
Will your permit desk file Mississippi together with my neighboring states?
Yes. Send one request with the truck, load and full route, and we file the Mississippi trip and MDOT permits along with Louisiana, Arkansas, Alabama or any other state the load crosses, any time of day.
Keep going
Mississippi permit pages
Permit types in Mississippi
All states
Neighboring states
24/7 permit desk
Need a permit in Mississippi for this load?
Send the details once. We file with MDOT Office of Enforcement, plus every other state on your route.