Update a CDL

Commercial Driver License

You can update your CDL DOT Medical Card and Medical Self-Certification category or upgrade your CDL to a different class.

DOT Medical Card Update
License Class Upgrade

Medical Certification Requirements for Oklahoma CDL and CLP Holders

Per federal CDL regulations, Service Oklahoma is no longer allowed to accept paper medical certificates (med certs or med cards) as of February 17, 2026. Medical Examiner Certificates (MEC) must be electronically submitted through the Federal Motor Carrier Safety Administration (FMCSA) National Registry of Certified Medical Examiners, usually referred to as the National Registry.

What This Means for You

You must complete your USDOT medical examination with a medical examiner listed on the Federal Motor Carrier Safety Administration National Registry of Certified Medical Examiners.
- For more information about how to use the registry, visit our Frequently Asked Questions.
Your medical examiner is required to electronically submit your Medical Examiner’s Certificate (Form MCSA-5876) to the FMCSA National Registry.
The FMCSA will electronically transmit your MEC information to Service Oklahoma.
Service Oklahoma will update your commercial driver record upon receipt of your valid MEC information.
Paper medical certificates will not be accepted.

Medical Certification Inquiries

You are not required to complete this step. However, if you would like to verify that your DOT medical examiner has submitted your medical certification to the National Registry, you may use this tool beginning 48 hours after your physical examination. Service Oklahoma can verify whether your medical certification has been recorded in the National Registry.

Log in to your Navigate account
Click on Medical Certification Inquiry and complete the information
An email will be returned to you within twenty-four (24) business hours verifying whether your medical certification is on file with the National Registry with further instructions if it is not on file.

Important Reminders

You are responsible for knowing when your medical certificate expires and ensuring your examination is completed before expiration.
Medical examiners must submit MEC information to the National Registry by midnight of the day following your examination.
Forty-eight (48) hours or more after your exam, confirm with your medical examiner that your MEC was successfully submitted.
Keep a copy of your Medical Examiner’s Certificate for your personal records.

Failure to Maintain Certification

If you are required to maintain a “certified” medical status and your MEC expires or is not received electronically, your status will change to “not certified,” and your CDL or CLP may be downgraded.

For information on locating a certified medical examiner, visit the Federal Motor Carrier Safety Administration National Registry website or contact them at fmctechsup@dot.gov (617) 494-3003.

If you have a CDL Class A, B, or C, and are looking to upgrade your class type (i.e. Class C to a Class A), you will need to go through the Class Upgrade Process.

Steps to Upgrade a License Class

Prepare for the Written Test

Study the CDL Driver Manual. The manual covers information for the general knowledge test, relevant to all CDL applicants. It also contains specific information on the classes and endorsements tests that are separate from the general knowledge test and require additional study as guide-lined in the manual.

Prepare and bring the following to your appointment:

Proof of Identity — View the list of all acceptable proof of identity documents
Proof of Residency — One proof of address (two if REAL ID)
Current valid Oklahoma CDL

Take the Written Test

Start your application by taking the CDL written test in-person at a CDL testing facility.

Find a Location

Get your Commercial Learner Permit (CLP)

Once you have successfully completed and passed the necessary written tests for the type of license you are trying to obtain, you will be issued a temporary Commercial Learner Permit. You must hold this permit for 14 full days before taking the drive test. You can take the skills test on the 15th day after holding your permit.

The CLP may include CDL endorsements and/or restrictions.

Take the CDL Drive Test

To make a CDL drive test appointment after holding your permit for 14 days:

Select the "Save Your Spot" button below. This will take you to Service Oklahoma's online check-in page.
Select "Get started" and then "Drive Tests".
Select "CDL Drive Test - Commercial Drivers" service to select a location near you.

Have your Driver License number and your availability ready when scheduling an appointment. A complete drive test usually takes about two hours.

You may also schedule a CDL drive test through a third-party drive school or examiner, who sets their own rates and availability. Third-party examiners can administer drive tests to most applicants applying for a Class A, B or C Commercial Driver License (some restrictions may apply).

Save Your Spot

What to Bring to the CDL Drive Test

Prepare and bring the following documents:

Valid Oklahoma Driver License
Documentation for the vehicle you will be driving
- Valid insurance verification
- Valid vehicle registration
  - Exception for cab card for apportioned tag

Your Commercial Learner Permit (CLP)
- Received after written test
DL18 CT form
- Given when you apply
- Has your written test score, showing that you passed

During Your Drive Test

During the CDL drive test, you will be required to complete

A pre-trip inspection
The basic control skills test (backing maneuvers)
Road test

More information about the drive test can be found in chapter 12 of the CDL Manual.

Service Oklahoma does NOT supply vehicles for the CDL drive test.

There are three sections to the CDL drive test. If you pass a specific section, but fail another, you will receive credit for the section that you passed and will not have to retest on that section when you retake the drive test.

Test results are only valid for the duration of the CLP issuance.

After the Drive Test

Once you have successfully completed all the requirements of the CDL drive test, the Examiner will stamp your DL18 certificate (the certificate you received after passing the written portion of your CDL test).

You will need to bring the following to any Service Oklahoma Licensing Office location:

Proof of identity
Proof of Oklahoma residency (two for Real ID)
Your CLP (Commercial Learner Permit)
- Received after written test
DL18 CT form
- Given when you apply
- Has your written test score, showing that you passed
- Stamped by drive test Examiner, showing that you passed

If you are required to get a DOT Medical Card:
- A valid Medical Examiner's Certificate (DOT Medical Card)
- Paper certificates are no longer accepted, but you must receive a Medical Examiner's Certificate from a Certified Medical Examiner before your license can be issued.
- Search for a Certified Medical Examiner near you

Note

Credit card payment is accepted at Service Oklahoma Licensing Office locations.

Appointments are not required to print your license after successfully passing the drive test.

Fees

4-Year Credential Option

Class A: $81.50
Class B: $71.50
Class C: $61.50

8-Year Credential Option

Class A: $138.00
Class B: $128.00
Class C: $108.00

Frequently Asked Questions

You can search for a Certified Medical Examiner near you on the FMCSA website.

Perform the following steps after you open the FMCSA National Registry page:

Enter your City, State or Zipcode into the "Location" field and select a "Range"
Select "Search"
1. If you can't select "Search", make sure you are not still inside the "Location" field
A map will open of Certified Medical Examiners in the range you entered

To receive a hazardous material endorsement, please visit the TSA Hazmat Endorsement page.

You are no longer required to submit a Medical Examiner's Certificate. This process has been automated and will be sent through an electronic exchange process with FMCSA.

Service Oklahoma will notify you that you are no longer medically certified to operate a CMV in Non-excepted Interstate (NI) commerce. If you do not obtain a new valid Medical Examiner's Certificate within 30 days of expiration, you will have CDL privileges downgraded from your license automatically.

For licensing purposes, you are required to hold a Medical Examiner's Certificate, also known as a DOT Medical Card, if you operate a commercial motor vehicle (CMV) and have self-certified as Non-Excepted Interstate (NI).

For Excepted Interstate (EI), Excepted Intrastate (EA) and Non-Excepted Intrastate (NA), a DOT Medical Card is not required for licensing but may still be required while operating a CMV.

Search for a Certified Medical Examiner near you on the FMCSA National Registry.
Learn more about self-certification statuses by:
- Reading the DOT Medical Card determination information on the First-Time Applicants page
- Visiting FMCSA's website

If you were told you are physically qualified by a DOT medical examiner and later receive a CDL downgrade letter, it is likely that your medical certification information was not received by Service Oklahoma. If this happens or your certficate never showed up in the Service Oklahoma system, please act quickly by taking the following steps:

Contact the medical examiner that performed your physical qualification examination, explain the issue and request that they log into their National Registry account and verify if they received an error message task for your examination.
If they have, request that they use the copy of your Driver License submitted at the time of the examination to correct any errors and select submit.
Contact Service Oklahoma at CDLSupport@service.ok.gov or visit any Service Oklahoma location or Licensed Operator to inform them that the medical examiner submitted the validation/correction and to verify that the medical certification information posted.
If neither of the steps above resolve the issue, you can contact FMCSA’s National Registry Technical Support Helpdesk at fmctechsup@dot.gov or (617) 494-3003, to assist in determining the issue and possible corrective actions the agency can assist with.

If your medical certification information was not received by Service Oklahoma, there may have been an error with your submission. Here are the most common data-entry errors:

The first letter on the Driver License is missing
Names or addresses are misspelled
A digit is missing
The “waiver required” box is checked unnecessarily

You can review instructions for checking your certification status on Navigate at the section above titled, "Medical Certification Inquiries".

Service Oklahoma
P.O. Box 11415
Oklahoma City, OK 73136