CDL FAQ

Hazmat Endorsement Information
Prior to applying for or renewing a CDL license with a hazardous material endorsement, applicants must complete a background check application on-line or by phone. Click here to complete on-line or call 855-347-8371. (You cannot complete the application at the TSA fingerprint site.)
 
After the application is complete, visit a TSA fingerprint site to submit your fingerprints. The TSA agent will forward your application and fingerprints to TSA and the FBI. TSA then notifies the applicant and Motor Vehicle of the results (TSA will only notify Motor Vehicle of "Yes/Issue" or "No/Don't Issue"). If the TSA results are "Yes/Issue," the applicant may then obtain a hazardous material endorsement on the CDL.
How Do I Check My Hazmat Status?

Click here to check your Hazmat status or call 855-347-8371. For those who wish to appeal TSA's decision or apply for a waiver, please call 855-347-8371 for more information

Vets-2-Trucks program
The Vets-2-Trucks program helps Colorado residents who are currently serving in the military, close to being discharged or have been recently discharged,(within one year),qualify for a Colorado CDL. The Vets-2-Trucks program waives the drive skills testing requirement, but requires individuals to successfully pass the written exams.
 
I Lost My CDL, How Do I Get It Back?
Revocation - you may be required to take both the regular and CDL written exams and drive skills tests after you reinstate.
Suspension - your CDL should go back to valid after you reinstate or you may purchase a duplicate CDL.
  • If your CDL expired (for less than one year) during the suspension, you will be required to renew it or downgrade to a regular license. 
  • If your CDL was canceled due to an unpaid ticket, you are required to purchase a new CDL.
  • If your CDL was canceled for more than one year, you are required to take both regular and CDL written exams and drive skills tests after you reinstate.
  • If your CDL was canceled due to an expired DOT medical, the license will go back to valid after the Department of Revenue receives your current DOT medical information.
  • If your CDL expired (for less than 1 year) before you provided your current DOT medical, you will be required to renew it or downgrade to a regular license. For more information about DOT medical click here.
Will My CDL Transfer From Another State?

All valid (expired less than one year) out of state CDLs will transfer to Colorado. All endorsements with exception of the H, and X will also transfer. Out of state CDL permits do not transfer and require retesting. For more information click here.

Contact Information
CDL Unit
PO Box 173350
Room 164
Denver, CO 80217
 
For general questions call 303-205-5600 or email dor_cdlunit@state.co.us
Where to Find a Third-Party Tester

Here's a list of third-party CDL testing units