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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.

If your DOT Medical Card is about to expire, or if your CDL was downgraded because you did not submit a Medical Examiner’s Certificate (DOT Medical Card) in time, you will need to go through the CDL update process.

You are NOT eligible to renew online if:
  • You need to change or remove a restriction on your CDL
  • You have changed your name, and it is not reflected on your identification documents
  • You are a Hazardous Materials endorsement holder, you are required to renew in person


To keep your CDL active and in good standing, we recommend submitting your updated DOT Medical Card to Service Oklahoma at least 30 days in advance of its expiration.

Steps to Update a Medical Examiner's Certificate (DOT Medical Card)

Get a valid Medical Examiner’s Certificate (DOT Medical Card)

To start your online CDL Update, you will need to have the following readily available:

  • Current Driver License number
  • Valid Medical Examiner’s Certificate (DOT Medical Card), if you plan to operate in Non-excepted Interstate Commerce (i.e. leaving Oklahoma with CDL vehicles)

If your current last name is different from your identification documents, you will need documentation connecting your name on your primary and secondary IDs to your current name, such as a marriage license, divorce decree, adoption decree, etc. For more information, click here.

If you are a lawful Permanent Resident, you will need to submit a Valid, unexpired Permanent Resident Card, issued by United State Citizenship and Immigration Services (USCIS) or Immigration and Naturalization Services (INS)*

Update your CDL DOT Medical Card or Self- Certification status using the online form

Receive your CDL DOT Medical Card Update confirmation within 10 days

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:

  • Primary ID — View the list of all acceptable primary identification documents
  • Two (2) Valid Proofs of Oklahoma Residency  — view the list of all acceptable residency documents
  • Current valid Oklahoma CDL
  • Valid Medical Examiner’s Certificate (DOT Medical Card), if you plan to operate in non-excepted interstate commerce (i.e. leaving Oklahoma with CDL vehicles). Click here to search for a certified Medical Examiner.

Take the written test

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

Get your CDL Permit

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 paperwork to take to a Licensed Operator of your choice that will print a CLP for you. 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, you will need to call the CDL scheduling phone number at 405-425-2196. Have your Driver License number and your availability ready when you call to schedule an appointment. A complete drive test usually takes about two hours. 

You may also schedule a CDL drive test with a third-party examiner. 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). 

What to Bring to the CDL Drive Test

Prepare and bring the following documents:

  • Your CLP (Commercial Learner Permit) [received after written test]
  • Documents showing your written test score sheet [passed] (DL18 CT form that you are administered upon application)
  • Documentation for the vehicle you will be driving, including valid insurance verification and vehicle registration (exception for cab card for apportioned tag)


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 on the skills test can be found in chapter 12 of the CDL Manual.


Service Oklahoma does NOT supply vehicles for the CDL Skills Test.

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 this certificate to any Service Oklahoma Licensing Office location.


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.


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

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

You can submit your Medical Examiner’s Certificate using our online portal.

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 submit a new valid Medical Examiner's Certificate within 30 days of expiration, you will have CDL privileges downgraded from your license automatically.

You are required to hold a Medical Examiner Certificate (DOT Medical Card) if you operate, and have self-certified as, Non-Exempted Interstate commerce (NI). If you are not sure what your self-certification status is, click here to learn more about them


Search for a Certified Medical Examiner

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Learn more about the Self-Certification Affidavit

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