Colorado IRP: Lakewood by Appointment, County for Everything Else

Quick Answer

Colorado’s Division of Motor Vehicles (Department of Revenue) handles IRP for interstate carriers — in person by appointment only at 3265 S Wadsworth Blvd in Lakewood, or online through myDMV (mydmv.colorado.gov), where you can create an IRP account and manage carrier IDs. Intrastate commercial trucks title and register at county motor vehicle offices instead, and since May 1, 2024 intrastate trucks at 10,001 pounds or more must supply a DOT, EIN, or SSN at county registration. Colorado grants a full-month grace period after IRP expiration to complete renewal — rare generosity among IRP states.

Colorado’s model is a clean split: counties own intrastate commercial registration and all titling, while the State DMV’s IRP unit in Lakewood owns interstate work — on an appointment-only basis, with myDMV handling account creation and updates online. IFTA lives separately with the Department of Revenue’s taxation side.

Who goes where

Commercial vehicles over 26,000 pounds gross (alone or in combination) or with three or more axles, traveling in two or more jurisdictions, register under IRP with the State DMV — appointments selected as "IRP Originals" or "IRP Supplements/Renewals" at the Lakewood office. Everything intrastate stays at the county: titling for all commercial vehicles and registration for Colorado-only trucks, where vehicles at 10,001 pounds and up have needed a DOT number (and a DOT/EIN/SSN on file) since May 2024.

The grace month — and the records rule

Colorado publishes an unusually forgiving renewal rule: carriers get the entire month following their expiration date to renew and receive permanent credentials. A July 31 expiration means all of August to finish. Do not confuse grace with slack elsewhere — Colorado expects IRP mileage records kept for four and a half years per qualified vehicle.

On the federal tax, Colorado publishes no state-specific 2290 wording on its accessible pages — the federal rule simply applies: at 55,000 pounds or more taxable gross weight, bring the current stamped or e-file-watermarked Schedule 1, and confirm specifics with the IRP unit at 303-205-5608.

Practical note for visitors: the IRP counter is appointment-only — walk-ins are not served. Book online, choose the right appointment type, and bring the full document set; the Lakewood office at 3265 S Wadsworth Blvd is the only state IRP location.

Frequently asked questions

Where do I register a truck in Colorado?⌄
Intrastate trucks — and all titling — go through your county motor vehicle office. Interstate carriers register under IRP with the State DMV: online via myDMV or by appointment at 3265 S Wadsworth Blvd, Lakewood. The state IRP phone center is 303-205-5608.
Does Colorado give a grace period on IRP renewals?⌄
Yes — the entire month following your expiration date. A registration expiring July 31 can be renewed through August with permanent credentials issued in that window. Few IRP states publish anything comparable.
What 2290 proof does Colorado want?⌄
Colorado publishes no state-specific wording, so the federal standard governs: current proof of Heavy Vehicle Use Tax filing — the IRS-stamped or e-file-watermarked Schedule 1 — for vehicles at 55,000 pounds or more, presented with registration. Confirm document specifics with the IRP unit when booking your appointment.
What changed for intrastate Colorado trucks in 2024?⌄
Since May 1, 2024, intrastate commercial vehicles at 10,001 pounds or more must provide their DOT, EIN, or SSN when registering at the county office — and vehicles at that weight need a USDOT number. It aligns county registration with the federal safety identifier.

Related guides

More in State Motor-Carrier Portals & IRP Offices

Official sources

Agency rules, fees and contacts can change — confirm current requirements with the agency before acting. This guide is general information for truckers, not tax or legal advice.

Need your stamped Schedule 1 for the paperwork above?

E-file Form 2290 with Send 2290 and download the IRS-watermarked Schedule 1 — typically within minutes of IRS acceptance.

E-File Form 2290