Renewing Your CDL in Colorado

If you drive a commercial vehicle for a living, the importance of keeping a valid commercial driver license can’t be overstated. When your Colorado CDL is set to expire soon, renew it ASAP through the Colorado Division of Motor Vehicles (DMV).

Colorado CDL Renewal Eligibility

You can renew your commercial driver’s license at any time, up to 1 year after your CDL expires.

If you are a HAZMAT-endorsed drivers, you should make sure you‘ve completed a Transportation Security Administration (TSA) background check within the last 5 years. If you haven’t, head on over to our page on HAZMAT endorsements for some guidance on completing this process.

As a CDL holder, you are required to keep a current Medical Examiner’s Certificate (Form MCSA-5876) on file with the Colorado DMV. These typically expire every 2 years, unless otherwise specified on your certificate.

Check out our guide to Medical CDL Exams in CO for information on getting a medical exam and submitting your certificate.

How to Renew Your CO CDL

You have several options for renewing your Colorado CDL. You can renew:

  • Online.
  • By mail.
  • In person.

Keep reading for details on each process.


To apply for your Colorado CDL online, you’ll need to have:

  • Passed an optometrist-conducted vision exam within the DMV’s specified time limit.
  • A credit card for payment of your CDL fee.
  • A valid email address.
  • Checked your eligibility on the DMV website.

Once you confirm your eligibility, follow the instructions in the web portal to renew your CDL.

By Mail

As a commercial driver in Colorado, you also have the opportunity to renew your CDL through the mail. To do so, check your eligibility on the DMV website.

You’ll need to provide your Social Security number, as well as your CO customer identifier. Then follow the instructions on the webpage to mail your renewal request.

In Person

You can also renew your Colorado CDL at any DMV office. When you visit your local DMV office, be ready to provide:

  • Your current or recently expired commercial driver's license.
  • Proof of your:
    • Address.
    • Social Security number.
      • The DMV provides complete lists of acceptable documents for both residency and SSN.

CO CDL Renewal Fees

Here’s a list of fees associated with renewing your Colorado commercial driver license:

  • CDL: $17.08.
  • Motorcycle endorsement: $2 (plus CDL fee).
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