By Evan Reid, Founder of Haul Handbook · Updated Aug 27, 2026
The Colorado intrastate rule
FMCSA requires a USDOT number for interstate operations everywhere; the rows below show what Colorado adds for carriers that never leave the state. Our state DOT number requirements table holds the same answer for every state. A field reading "Not confirmed" means the agency publishes no figure.
Colorado adopted FMCSR Part 390 for intrastate carriers (42-4-235(4)(a) C.R.S.). A USDOT number is required for any vehicle meeting the CMV definition operated in intrastate or interstate commerce; the intrastate CMV threshold is a GVWR/GCWR of at least 16,001 lbs (vs 10,001 lbs interstate). Intrastate-only carriers must mark vehicles with the USDOT number followed by the suffix 'CO'.
Colorado adopted FMCSR Part 390 for intrastate carriers (42-4-235(4)(a) C.R.S.). A USDOT number is required for any vehicle meeting the CMV definition operated in intrastate or interstate commerce; the intrastate CMV threshold is a GVWR/GCWR of at least 16,001 lbs (vs 10,001 lbs interstate). Intrastate-only carriers must mark vehicles with the USDOT number followed by the suffix 'CO'.
No separate Colorado carrier number
Where a Colorado carrier enrolls
Both filings go directly to the issuing agency; how the federal one works is covered step by step in our guide to getting a USDOT number. Filing services resell these same applications, so the rows below name the direct channel first.
- USDOT number
- Directly with FMCSA at fmcsa.dot.gov/registration (registration site)
Apply through the state agency.
Once a number is active, anyone can pull the public record behind it; our DOT number lookup guide shows how to read that snapshot the way brokers and enforcement do.
The state registration triggers behind it
These are the operations that pull a carrier into Colorado's own motor carrier registration, where the DOT number rules above attach. The full credential, fees, and insurance filings live on the Colorado intrastate authority page.
Where the number fits in the Colorado launch
Registration numbers come early: they exist before insurance binds and before the first load. For the full order of operations, from entity to authority to plates, work through start a trucking company in Colorado, and keep the Colorado trucking hub handy for the rest of the state's credentials.
Frequently asked questions
Does Colorado require a USDOT number for intrastate trucking?
- Yes for many operations. Colorado sets its own intrastate rule on top of the federal interstate one, and the sourced fact rows on this page show the exact trigger and the exemptions the state publishes. Interstate work triggers the federal requirement regardless of the state rule.
Does Colorado issue its own carrier number?
- No. Colorado issues no separate state carrier number. The fact rows on this page show which credential the state uses instead and which agency administers it, with the official source beside each fact.
Do I have to pay a filing service to get a USDOT number?
- No. You can register directly with FMCSA yourself, and the state credential applications on this page go straight to the state agency through the portal it names. Third-party filing services resell those same applications; nothing on this page requires one.
Where do these facts come from?
- Every requirement, threshold, and portal on this page renders from a state agency page, a statute, or an FMCSA publication cited beside the fact. When an agency publishes no figure, the field says so instead of guessing.
Haul Handbook publishes educational information about trucking registration and compliance requirements. This is not legal, financial, or tax advice. Rules, fees, and deadlines change; confirm with the agency before you file or pay.