Colorado trucking permits
Trip, fuel and oversize/overweight permits for Colorado — what the state requires, how it prices them, and how to get them filed.
How Colorado prices a permit
In Colorado, what you pay turns on how far over legal it measures, how many axles carry it and how far you travel in the state. Because distance is part of it, a short crossing of Colorado costs less than running its length.
States do not use a common formula. Colorado charges on a per-mile rate that changes with distance, dimension bands and a charge for each axle, depending on the permit and the configuration:
- a per-mile rate that changes with distance
- The rate per mile itself steps at set distances, so the long-haul rate differs from the short-crossing one.
- dimension bands
- Length, width and height are read together against a set of bands, and the band you land in sets the fee.
- a charge for each axle
- A per-axle amount, so adding axles to spread weight also adds fee.
What Colorado permits cost
The state's own fee, plus what we charge to prepare and file it. Your total depends on the trip, so the quote is the number that counts — these are the floors we hold on file.
| Permit | Colorado fee | Our fee |
|---|---|---|
| Trip Permit | from $80 | $29 |
| Fuel Permit | by weight, axles and distance | $29 |
| Oversize / Overweight | by weight, axles and distance | $39 |
A handling fee applies to each permit line. Nothing is charged until you have seen the total.
Fees and limits on this page were last checked in September 2026. States change fee schedules, legal limits and office hours without notice, and some fees depend on details we only know once you tell us the trip. Colorado is the authority, not this page — treat these as a guide and the quote as the number.
When you need an oversize permit in Colorado
Width and gross weight are federal everywhere — over 102 inches wide or 80,000 lbs and you need a permit in Colorado and in every other state. What changes at the state line is height, trailer length and what the axles may carry.
- Height
- 14'
- Semi-trailer length
- 57' 4"
- Tandem axle
- 36,000 lbs
- Colorado allows 14' of height where the federal baseline is 13' 6" — a load that needs a permit elsewhere may be legal here.
- Semi-trailers may run to 57' 4", longer than the 53' most states allow.
- A tandem axle may carry 36,000 lbs here, above the 34,000 lbs federal figure — so a load that is overweight on the axles in a neighbouring state can be legal in Colorado.
Overhangs, single and tridem axles and the full table are on the Colorado regulations page.
The Colorado permit office
Who issues the permit, when they are open, and where they take applications. We deal with them so you do not have to — but if you would rather call them yourself, this is the desk.
Oversize/ Overweight
- Phone
- (800) 350-3765
- Weekday hours
- Mon–Fri 7:30 AM–4:30 PM
- Portal
- State permit portal
Crossing more than Colorado?
Most trips need permits in more than one state. Pick another, or price the whole route at once.