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How to Renew Your Commercial Driver's License in South Carolina

By Viola Travers · Practical Services & Civic Guide

Renewing your CDL in South Carolina

You can renew your South Carolina commercial driver's license (CDL) up to 6 months before it expires. The process depends on whether your license is still valid, whether you need a medical certificate, and whether you want to renew in person or by mail. Most renewals take 1 to 2 weeks if you submit everything correctly the first time.

South Carolina's Department of Motor Vehicles (SCDMV) handles all CDL renewals. You cannot renew online, but you can start the process by mail or complete it in person at any SCDMV office. If your license has been expired for more than 2 years, you will need to retake the written and skills tests instead of renewing.

Key Takeaways

  • You can renew your CDL up to 6 months before the expiration date printed on your license.
  • A valid medical certificate (FMCSA Form 649) is required for most CDL renewals and must be submitted with your application.
  • Renewing by mail requires a completed application, your medical certificate, and payment, mailed to SCDMV; renewing in person takes about 30 minutes at any SCDMV office.
  • If your license expired more than 2 years ago, you must retake the written test and skills test instead of renewing.
  • Your new CDL will be mailed to you within 1 to 2 weeks of approval if you renew by mail, or you can receive it immediately at the office if you renew in person.

What documents you need to renew

Start by gathering your current CDL and a valid medical certificate. The medical certificate must be the FMCSA Form 649 (Medical Examiner's Certificate), issued by a certified medical examiner within the past 24 months. You can find a list of certified examiners on the FMCSA website or ask your current doctor if they perform CDL medical exams.

You will also need proof of South Carolina residency (a utility bill, lease, or bank statement dated within the past 60 days) and a valid form of identification such as a passport or state ID. If you have changed your name since your last license, bring a marriage certificate, divorce decree, or court order showing the legal change.

Have your Social Security number ready. You will need it to complete the application whether you renew by mail or in person.

Renewing by mail

To renew by mail, request an application form from SCDMV by calling 803-896-5000 or visiting an SCDMV office in person. You can also download the CDL renewal application from the SCDMV website. Complete the form and gather your medical certificate, proof of residency, and a check or money order for the renewal fee (the amount varies depending on your license class and whether you need hazmat endorsement).

Mail everything to the address listed on the application. SCDMV will process your renewal and mail your new license to you within 1 to 2 weeks. Your current license remains valid until the new one arrives, so you can continue driving during this time.

Keep a copy of everything you mail for your records. If SCDMV needs additional information, they will contact you by phone or mail.

Renewing in person at an SCDMV office

Walk into any SCDMV office with your current CDL, medical certificate, proof of residency, valid ID, and payment. Bring a completed CDL renewal application if you have one, though you can also fill it out at the office. The process usually takes 30 minutes or less.

You will not take any tests during a standard renewal. A staff member will verify your documents, update your information, take a new photo, and process your payment. If everything is in order, you will receive your new CDL on the spot or within a few days, depending on the office's current workload.

SCDMV offices are open Monday through Friday during standard business hours. Some offices have extended hours on certain days. Check the SCDMV website for the office nearest you and its hours before you go.

Medical certificate requirements

Your medical certificate must be current (issued within the past 24 months) and signed by a certified medical examiner. Not all doctors are certified to perform CDL medical exams; the examiner must be listed on the FMCSA's National Registry of Certified Medical Examiners. Your regular doctor may be on the list, but you should confirm before scheduling an appointment.

The exam covers your vision, hearing, blood pressure, and general health. It takes about 30 minutes and costs between $75 and $150 depending on the examiner. If the examiner finds a medical condition that affects your ability to drive safely, they may issue a certificate with restrictions or decline to certify you.

If your medical certificate expires before your CDL does, you must renew the certificate to keep driving commercially. You cannot drive with an expired medical certificate even if your CDL itself is still valid.

What happens if your license has expired

If your CDL expired fewer than 2 years ago, you can still renew it by mail or in person using the standard renewal process. Your expired license is still considered valid for renewal purposes during this window.

If your CDL expired more than 2 years ago, you cannot renew. Instead, you must retake the written test and the skills test as if you were obtaining a CDL for the first time. You will need to study the South Carolina CDL manual, pass the written exam, and schedule a skills test with an approved testing facility. This process takes several weeks and costs more than a standard renewal.

Renewal fees and payment

CDL renewal fees in South Carolina depend on your license class and endorsements. A standard Class A or Class B CDL renewal costs one amount; adding or renewing hazmat endorsement costs more. Contact SCDMV at 803-896-5000 to confirm the exact fee for your situation, or check the SCDMV website for current pricing.

You can pay by check or money order if you renew by mail. If you renew in person, SCDMV accepts cash, check, debit card, and credit card at most offices, though payment methods may vary by location. Ask when you arrive.

Frequently Asked Questions

Can I renew my CDL online?

No. South Carolina does not offer online CDL renewal. You must renew by mail or in person at an SCDMV office. Mail renewal takes 1 to 2 weeks; in-person renewal is faster if you need your license immediately.

What if my medical certificate expires before my CDL does?

You must renew your medical certificate before it expires. You cannot legally drive a commercial vehicle with an expired medical certificate, even if your CDL itself is still valid. Schedule a new exam with a certified medical examiner and submit the updated certificate to SCDMV.

Do I need to retake the written test when I renew?

No, not for a standard renewal. You only retake the written and skills tests if your CDL has been expired for more than 2 years. If your license is current or expired fewer than 2 years, you renew without testing.

How long does it take to get my renewed CDL?

If you renew by mail, your new license arrives within 1 to 2 weeks. If you renew in person, you may receive it immediately or within a few days depending on the office. Your current license remains valid while you wait for the new one.

What if I move out of state after I renew?

Your South Carolina CDL remains valid in all other states. If you move and want to obtain a CDL from your new state, you will need to transfer your license through that state's DMV. Each state has different requirements, so contact your new state's DMV for details.