Does Colorado require a USDOT number for intrastate trucking?

Yes, for carriers that operate only inside Colorado, subject to the weight line and exemptions in the table above. Federal rules apply separately once you cross a state line or haul certain hazardous materials.

Does Colorado issue its own carrier number?

This guide does not confirm a separate Colorado carrier number. The note above explains what the state uses instead, where it says.

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?

Each row cites the agency page, statute or rule it was read from, with the date the record was last verified. A field this guide could not confirm is labeled Not confirmed rather than filled with a guess.

Colorado DOT Number: Who Needs One and How to Get It

By Haul Handbook editorial team· Updated Oct 6, 2026

The Colorado intrastate rule

Federal USDOT registration depends on the vehicle and operation. The rows below show what Colorado requires for carriers operating inside the state. Our state DOT number requirements table holds the same answer for every state. A field reading "Not confirmed" means this guide has no verified figure for that field.

USDOT for intrastate carriers: Yes
Weight trigger: 16,001 lb or more
On FMCSA's intrastate list: Yes
Statute: C.R.S. 42-4-235(1)(a) (intrastate commercial vehicle definition); C.R.S. 40-10.1-105(1)(i) (property transportation outside PUC regulation)

Colorado adopts 49 CFR Part 390 for intrastate carriers with its own commercial motor vehicle definition: a self-propelled or towed vehicle that bears an apportioned plate, has a GVWR or GCWR of at least 16,001 lbs, is equipped to tow other motor vehicles, or carries hazardous materials in a placarded quantity (C.R.S. 42-4-235(1)(a)). The Colorado State Patrol says a USDOT number is required for any vehicle operated in intrastate or interstate commerce that meets that definition. Interstate operation follows the federal 10,001 lb threshold instead.

Intrastate-only carriers mark the USDOT number followed by the suffix "CO". A carrier running 16,001 to 26,000 lb equipment without passengers or placarded hazmat may put the marking on the trailer when the power unit is rated 16,000 lbs or less.

Colorado carrier-number record

Colorado issues no state carrier number to general-freight carriers, because C.R.S. 40-10.1-105(1)(i) takes the transportation of property, other than towing and moving, out of PUC regulation. The PUC issues permits to the carrier types it still regulates.

Where a Colorado carrier enrolls

Registration goes to the agency that issues each credential; the federal process 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.

Create a user profile, complete identity verification, and create a company account in Motus to apply for a USDOT number and the registrations your operation needs. Claim your existing USDOT record in Motus using the company official’s Login.gov email, then manage registrations or apply for additional authority. See the Motus account guide before opening or claiming your record.

USDOT number: Directly with FMCSA online at fmcsa.dot.gov/registration (registration site)
USDOT application fee: Free
State agency: None for general freight. Towing carriers, household goods movers and passenger carriers apply to the Colorado Public Utilities Commission.
State portal: General-freight carriers have no Colorado enrollment beyond the USDOT number, IRP and IFTA. The PUC handles permits, insurance filings and vehicle stamps for the services it regulates through its online services at puc.colorado.gov/trans.

General-freight carriers have no Colorado enrollment beyond the USDOT number, IRP and IFTA. The PUC handles permits, insurance filings and vehicle stamps for the services it regulates through its online services at puc.colorado.gov/trans.

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, and the MC number lookup reads the live record back for a number you type in.

The same number carries your safety history. Every roadside inspection written against it feeds the CSA percentiles a broker's vetting platform reads after it checks your authority and insurance, and a violation recorded in error is corrected through DataQs, not by the state agency that issued the credential above.

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.

Weight trigger: 16,001 lb or more
For-hire only: For-hire status alone does not trigger PUC authority. General-freight carriers, for hire or private, are outside PUC regulation; only towing carriers, household goods movers and passenger carriers need PUC authority.

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.