How to renew your CDL before it expires
You renew a Commercial Driver's License (CDL) by visiting your state's Department of Motor Vehicles (DMV), passing a medical examination, and paying a renewal fee. The process is similar to renewing a regular driver's license, but CDL renewal requires additional steps: you must pass the same medical exam that was required when you first obtained the license, and some states require you to pass written tests again depending on the endorsements you hold.
Most states allow you to renew your CDL up to 6 months before it expires, and you should plan to start the process at least 30 days before your expiration date. If your CDL has already expired, you may need to retake the full CDL testing process rather than straightforward renewing, so timing matters.
Key Takeaways
- You must pass a Department of Transportation (DOT) medical examination before renewing, and the results are valid for 24 months.
- Most states require you to visit a DMV office in person to renew your CDL, though some allow you to submit paperwork by mail if you meet certain conditions.
- Renewal fees vary by state and typically range based on how many years you are renewing for, usually 4 or 8 years.
- If your CDL has been expired for more than a certain period (usually 1 to 2 years depending on your state), you may have to retake the written and skills tests instead of renewing.
- You will need to bring your current CDL, proof of citizenship or legal residency, proof of your state residency, and your medical examination certificate.
Getting your DOT medical examination
Before you can renew your CDL, you must obtain a DOT medical examination from a certified medical examiner. This is not optional—your renewal process will be rejected without it. The examiner checks your vision, hearing, blood pressure, and overall health to may support you are physically able to operate a commercial vehicle safely.
You can find a certified medical examiner through your state's DMV website or by searching the Federal Motor Carrier Safety Administration (FMCSA) National Registry of Certified Medical Examiners. The exam typically costs between $75 and $150, though prices vary by provider and location. Once you pass, the examiner will issue a Medical Examiner's Certificate, which is valid for 24 months. You will need to bring this certificate with you when you renew.
Schedule your medical exam before you go to the DMV, because you will need the certificate in hand to complete your renewal process. Some people schedule both appointments on the same day if the medical examiner's office is near the DMV.
What documents to bring to the DMV
Bring your current CDL, your Medical Examiner's Certificate, and proof of your identity and state residency. Most states require a government-issued photo ID (your current CDL counts), a birth certificate or passport, and a document showing your current address—such as a utility bill, lease, or bank statement dated within the last 60 days.
If you have changed your name since your last CDL was issued, bring a legal document proving the change, such as a marriage certificate or court order. If you are renewing with new endorsements (such as Hazmat or Passenger), you may need to bring additional documentation or pass written tests for those endorsements.
Check your state's DMV website before you go, because some states have specific document requirements that differ from others. Showing up without the right paperwork will delay your renewal.
Renewal fees and how long the process takes
CDL renewal fees vary significantly by state. Most states charge between $50 and $150 for a standard 4-year or 8-year renewal, though some states charge more. A few states offer reduced fees if you renew early or online. Payment methods typically include cash, check, debit card, or credit card, depending on your DMV's policies.
The renewal process itself usually takes 15 to 30 minutes at the DMV if you have all your documents in order. However, wait times at DMV offices can be long, so plan to spend 1 to 2 hours total. Some states allow you to renew by mail if you meet certain conditions—usually if your CDL has not been suspended or revoked and you do not need to update your photo or address. Check your state's DMV website to see if mail renewal is an option for you.
What happens if your CDL has already expired
If your CDL expired less than 1 year ago, most states will allow you to renew it through the standard renewal process. However, if it has been expired for more than 1 to 2 years (the exact timeframe varies by state), you will likely have to retake the written knowledge test and the skills test, just as if you were obtaining a CDL for the first time. This is a much longer and more expensive process than renewal.
Some states have a grace period during which you can renew without retesting, even if your license is technically expired. Check your state's DMV website or call your local DMV office to find out the exact rules in your state. If you are unsure whether you need to retake tests, it is better to ask before you go to the DMV.
Renewing online or by mail
A growing number of states offer online CDL renewal, though the process is more limited than regular driver's license renewal. Online renewal typically requires that your CDL has not been suspended or revoked, that you do not need to update your photo, and that you have a valid Medical Examiner's Certificate. You will still need to pay the renewal fee and may need to mail in your current CDL or have it scanned.
Mail-in renewal is available in some states under similar conditions. If your state offers either option, the DMV website will explain the exact steps and what documents to mail or upload. Even if you renew online or by mail, you will still need to obtain your DOT medical examination in person.
Keeping your CDL valid between renewals
Your CDL remains valid until the expiration date printed on the card, as long as you have not been convicted of certain traffic violations or had your license suspended. Some violations, such as driving under the influence or reckless driving, can result in an automatic CDL suspension or disqualification, even if your license has not expired.
If you receive a traffic ticket or are involved in an accident, report it to your employer as required by law. Some violations may not when ready suspend your license but can affect your renewal or your ability to drive commercially. If your CDL is suspended or revoked before it expires, you cannot renew it through the standard process—you will need to complete the suspension period and then retake the full CDL testing process.
Frequently Asked Questions
Can I renew my CDL before it expires?
Yes, most states allow you to renew your CDL up to 6 months before the expiration date. This is a good idea because it gives you time to schedule your medical exam and DMV appointment without rushing. Starting the process 30 to 60 days before expiration is typical.
What if I fail the DOT medical examination?
If you fail the medical exam, the examiner will tell you which health issues disqualify you. You may be able to retake the exam after addressing those issues, or you may need to wait a certain period before trying again. Some conditions result in a permanent disqualification from commercial driving. Contact your state's DMV for guidance on your specific situation.
Do I have to renew my CDL in person?
Most states require at least one in-person visit to the DMV for CDL renewal, though some allow you to complete part of the process online or by mail if you meet certain conditions. Check your state's DMV website to see what options are available to you.
What if I move to a different state?
If you move to a new state, you will need to obtain a CDL from that state. You cannot straightforward renew your old state's CDL. The new state will require you to pass the written and skills tests, though some states may waive the skills test if you hold a valid CDL from another state. Contact your new state's DMV for the specific process.
How long is my Medical Examiner's Certificate valid?
Your Medical Examiner's Certificate is valid for 24 months from the date the examiner issues it. If your certificate expires before your CDL renewal is processed, you will need to obtain a new medical exam. Plan your renewal timing so that your medical certificate does not expire while your renewal is pending.