What Is an Oversize Permit?
An oversize permit is a temporary travel document issued by a state, county, or municipal transportation authority that authorizes a vehicle to operate beyond legal size or weight limits. These permits are essential for trucks hauling over-dimensional freight—such as construction equipment, manufactured homes, wind turbine parts, or other unusually large loads.
The permit outlines the route you’re allowed to travel, the exact dimensions and weight of your load, the valid travel times, and any escort vehicle requirements. Permits can be issued for single trips or as annual permits, depending on the load type and route.
When Is an Oversize Permit Required?
If your vehicle or combination of vehicle and load exceeds legal limits for height, width, length, or weight, you must obtain an oversize permit before operating. Here are the general thresholds for most U.S. states:
Width: Over 8 feet 6 inches
Height: Over 13 feet 6 inches
Length: Over 48–53 feet (depending on the state and type of vehicle)
Gross Vehicle Weight: Over 80,000 pounds
For example, if your load is 14 feet tall and you’re traveling through a state where the legal height limit is 13 feet 6 inches, you’ll need an oversize permit specific to that state.
⚠️ Note: Permit requirements can vary by state. Some states allow taller or longer vehicles without a permit. Need help figuring out state-specific requirements? Contact our team for personalized guidance.
Ready to Get Your Permit?
Order PermitWhy Choose Pro Permit Services for Oversize Permits?
At Pro Permit Services, we specialize in helping carriers and owner-operators obtain the permits they need quickly, accurately, and stress-free. We’re not just a form-filing service—we’re your compliance partner every mile of the way.
Here’s what sets us apart:
✅ Fast turnaround — Get permits quickly, often in under an hour
✅ All 50 states covered — Coast-to-coast permitting solutions
✅ State-specific compliance — We know every regulation, from Texas to New York
✅ Dedicated support — Talk to real permit agents, not a chatbot
✅ No missed details — We triple-check every application to avoid delays