Michigan CDL Renewal Process

Commercial Driver’s License (CDL) holders in Michigan must renew their licenses periodically to stay compliant with state and federal regulations. The renewal process ensures that drivers remain qualified and medically fit to operate commercial vehicles. Here’s what Michigan CDL holders need to know about staying legal on the road.

When to Renew Your CDL

Michigan CDLs are typically valid for four years and expire on the driver's birthday. The Michigan Secretary of State (SOS) sends out renewal notices approximately 45 days before the expiration date. If you don’t receive a notice, you are still responsible for renewing on time.

You can renew your CDL as early as 12 months before it expires. Driving with an expired CDL is illegal and may result in fines and penalties, as outlined in the Michigan Traffic Ticket Fines and Penalties resource.

Where to Renew

CDL renewals must be completed in person at a Michigan SOS branch office. Visit the Michigan Secretary of State Office Locations to find a branch near you. CDL holders are not eligible to renew online due to the federal medical certification requirements.

Documents Required

To renew a CDL in Michigan, you must present:

• Your current CDL
• Proof of U.S. citizenship or legal presence
• Proof of Michigan residency (two documents)
• A current Medical Examiner’s Certificate (Form MCSA-5876), if applicable

Detailed documentation requirements are available in the Required Documents for Michigan License.

CDL Renewal Fees

Renewal fees vary based on the type of CDL and any endorsements. As of 2025, the base renewal fee is $35, with additional charges for endorsements (such as Hazmat or Passenger). For a full breakdown, refer to the Michigan DMV Fees and Payment Options.

Hazmat Endorsement Renewal

If your CDL includes a Hazardous Materials (Hazmat) endorsement, you must pass a TSA background check and a written knowledge test every time you renew. It’s recommended to start this process 60 days before your CDL expires. Learn more at the Michigan CDL Endorsements Guide.

Medical Certification Requirements

CDL holders must be medically certified to operate a commercial vehicle. Most must provide a valid Medical Examiner’s Certificate during renewal. If your certification has expired, your CDL may be downgraded or disqualified.

Knowledge or Skills Testing

In most cases, you won’t need to retake the CDL knowledge or road test for renewal unless your CDL has been expired for over one year or downgraded. For those needing to prepare, the Michigan CDL Written Test Preparation page is a valuable resource.

Grace Period and Late Renewal

Michigan does not offer a grace period for expired CDLs. If your CDL has expired, you must stop driving commercial vehicles immediately. If it has been expired for more than one year, you will be required to reapply and retest.

Always renew your CDL ahead of time to avoid disruptions in employment or compliance issues.