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.

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

By Evan Reid, Founder of Haul Handbook · Updated Aug 27, 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: 26,000 lb
On FMCSA's intrastate list: Yes
Statute: C.R.S. 40-10.1-105(1)(i)

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

No branded state carrier-number label is issued.

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 at fmcsa.dot.gov/registration (registration site)
USDOT application fee: No state agency issues the USDOT Number; FMCSA registration is free.
State agency: Colorado Public Utilities Commission (PUC)
State portal: Apply through the state agency.

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, 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: 26,000 lb
For-hire only: General freight intrastate carriers are deregulated and need no PUC authority; only for-hire towing, household goods, and passenger carriers are PUC-regulated.
Hazmat: Yes

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.