Renewing Your CDL in Connecticut

The Basics

A Connecticut commercial driver's license (CDL) is good for 4 years. Before your renewal date you should receive a renewal application from the Department of Motor Vehicles through the U.S. Mail. You need to renew your CDL in person at any Connecticut DMV full-service office. Bring the following items with you in order to complete the renewal process:

Hazmat Endorsement

If you have a hazmat endorsement, it's time to get a new background check. The procedure is not so much as a renewal as it is a whole new check; see Applying for a New CDL for full details.

New Federal Requirements

You must self-certify your type of vehicle operation with the Connecticut DMV. This means you must self-certify one of the following driving categories:

  • Non-Excepted Interstate
  • Excepted Interstate
  • Non-Excepted Intrastate
  • Excepted Intrastate

If you choose Non-Excepted Interstate, you must provide the DMV with a federal medical certificate.

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