How to Renew Your CDL in Texas

A Texas CDL does not renew quite like a regular license. DPS needs your medical certificate current and on file, HazMat holders face extra steps, and letting things slide can get your commercial privileges downgraded to a regular license. Here is the renewal process step by step, and the traps that catch working drivers.

October 17, 2026 · San Antonio, TX

When and where to renew

CDLs renew through the Texas Department of Public Safety, and CDL renewals are generally handled in person at a driver license office rather than online, because of the medical and testing requirements attached to the license. DPS mails a renewal notice, but treat the expiration date printed on your license as the real deadline and start early: San Antonio area offices get busy, and appointment slots near the end of the month go fast.

Bring your current license, your current medical certificate, and payment for the renewal fee. You will also take a vision screening at the office. If anything about your license has changed, such as your address or your name, handle the documentation for that at the same visit rather than hoping it slides.

Your medical certificate must be current and on file

This is the step that burns more drivers than any other. Federal rules require your medical certificate to be on file with the state, tied to your CDL record. Every time you get a new DOT physical, the new certificate has to reach DPS; examiners submit results electronically, but records get mismatched, and the driver is the one who pays for the error.

If your medical certificate on file expires, DPS can downgrade your CDL to a regular license until a current one is recorded, and driving commercially on a downgraded license is a serious problem. The habit that protects you: after every physical, confirm the new expiration date is reflected on your driving record before your old card runs out. Do not just assume the upload worked.

Self-certification: the checkbox that matters

When you first get a CDL, you declare a self-certification category describing the kind of driving you do: most San Antonio drivers who cross state lines or haul interstate freight are non-excepted interstate, which is the category that requires a current medical certificate on file. Your category on record must still match the work you actually do at renewal.

If your driving has changed, say you moved from interstate freight to a job that falls under one of the excepted categories, renewal is the time to update the declaration rather than letting the record drift. A mismatch between your category, your medical certificate, and your actual work is the kind of paperwork problem that surfaces at the worst possible moment, like a roadside inspection or a new employer's background check.

HazMat holders: retest and TSA renewal

Renewing with a HazMat endorsement adds two jobs. Texas requires HazMat holders to pass the HazMat knowledge test again at renewal, so budget study time for the handbook section rather than assuming you will remember placard tables from years ago.

Separately, your TSA security threat assessment expires every five years, on its own clock, not your license's. DPS cannot issue or renew the endorsement without a current threat assessment, so check both dates. Starting the TSA renewal early matters, because fingerprinting appointments and processing take time you do not have in the last week before your license expires.

What happens if your CDL expires

Driving commercially on an expired CDL is illegal, full stop, and employers' insurance treats it about as warmly as you would expect. Texas does allow renewal after the expiration date, but the longer it sits expired, the worse it gets: if a license has been expired for more than two years, expect to start over as a new applicant, including knowledge and skills testing.

There is also a middle trap: an expired or downgraded CDL can freeze your employment before it legally ends it, because most carriers pull records regularly and cannot dispatch a driver whose credentials are not clean. Renewal is cheap insurance compared to a month of lost work.

Renewal checklist

Work through this list before your expiration date and renewal becomes a boring errand, which is exactly what you want it to be:

Get your DOT physical before you renew

See San Antonio clinics for DOT physicals, with phone numbers, so your medical certificate is current and on file well before your DPS visit.

Browse DOT physicals

FAQ

Can I renew my Texas CDL online?

CDL renewals generally require an in-person visit to a driver license office because of the medical certificate verification and, for HazMat holders, testing requirements. DPS determines eligibility case by case, so check your renewal notice, but plan on going in person.

What happens if my medical card expires but my CDL has not?

DPS can downgrade your CDL to a non-commercial license until a current medical certificate is on file. Get your DOT physical done promptly and verify the new certificate is recorded against your license; the downgrade is about the record, not just the card in your wallet.

Do I have to retake the HazMat test when I renew?

Yes. Texas requires HazMat holders to pass the HazMat knowledge test at renewal, and your TSA security threat assessment must also be current; the TSA assessment renews every five years on its own schedule.

My CDL expired. Can I still renew it?

Usually yes, if it has not been expired too long, but you cannot legally drive commercially until it is renewed. If it has been expired for more than two years, expect to reapply and retake the knowledge and skills tests like a new applicant.

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