Permits Canada obtains oversize and overweight permits for Colorado for trucks and loads over the legal width, height, length or weight.
Colorado legal dimensions and weight
A truck and load within these limits needs no oversize or overweight permit in Colorado.
| Width | 8 ft 6 in |
|---|---|
| Length | 57 ft 4 in trailer (no overall limit) |
| Gross weight | 80,000 lbs on Interstates; 85,000 lbs on non-Interstate highways |
Colorado oversize permit rules
| Permits offered | Single trip, special (Chapter 6), annual, annual fleet |
|---|
Loads over 11 ft wide must get permission at the Eisenhower-Johnson Tunnels, and loads over 13 ft 11 in high may not use them.
Getting your permit with Permits Canada
- Send us the online oversize / overweight application with your truck, trailer, load dimensions and route.
- A permit agent applies for your Colorado permit and checks the route conditions.
- Your permit arrives by email with its travel conditions. Oversize and overweight permits can take longer, since the authorities review each application.
Our fee is $40 to $50 CAD per permit, plus the Colorado state fee, which depends on the dimensions, weight and route.
Also need temporary registration or fuel tax coverage? See Colorado trip & fuel permits.
Colorado oversize permit questions
When is an oversize permit required in Colorado?
When the truck or load exceeds the Colorado legal limits: width 8 ft 6 in, length 57 ft 4 in trailer (no overall limit).
What is the legal gross weight in Colorado?
The legal gross weight in Colorado is 80,000 lbs on Interstates; 85,000 lbs on non-Interstate highways. A heavier truck needs an overweight permit.
How much does a Colorado oversize permit cost?
Permits Canada charges $40 to $50 CAD per permit, plus the Colorado state fee, which depends on the dimensions, weight and route.
Last reviewed October 2026. Rules change; your permit agent confirms them for each move. All provinces and states