Colorado Truck Permits
Colorado truck permits — mountain routes and oversize moves covered.
Colorado's mountain terrain makes oversize and overweight permitting particularly complex. Specific routes are required for wide and heavy loads through mountain passes. We know Colorado's unique requirements and get your permits right.
Colorado Permit Requirements
Trip Permit
Temporary IRP trip permits for trucks not registered under the International Registration Plan operating in Colorado.
Who needs it: Required for 2-axle trucks over 26,000 lbs. or 3+ axle trucks of any weight not registered under IRP.
Fuel Permit
Temporary IFTA fuel permits for trucks not registered under the International Fuel Tax Agreement.
Who needs it: Required for 2-axle trucks over 26,000 lbs. or 3+ axle trucks of any weight not registered under IFTA.
Oversize / Overweight Permit
Colorado requires permits for any load exceeding legal size or weight limits, with specific routing requirements through mountain passes.
Who needs it: Required when height exceeds 13'6", width exceeds 8'6", trailer length exceeds 48', or gross weight exceeds 80,000 lbs. Route-specific restrictions apply.
What You Need to Know About Trucking in Colorado
- check_circle Mountain passes have strict height, width, and weight restrictions
- check_circle I-70 through the Rockies has some of the most restrictive oversize routing in the country
- check_circle Denver is a major Rocky Mountain distribution hub
- check_circle Oversize/overweight permits require careful route planning through Colorado
policyOfficial source: Colorado DOT — Commercial Vehicle Permits
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