What you need to know before you start

A Commercial Driver's License (CDL) in Texas is issued by the Texas Department of Public Safety (DPS) and allows you to operate commercial vehicles over 26,001 pounds. The process involves written tests, a skills test, and a medical examination. You cannot skip steps or test out of requirements — every person follows the same sequence, though the timeline depends on how quickly you prepare and schedule.

Texas does not have a separate "CDL certification" — the license itself is what you receive after passing all tests. Some people complete training through a CDL school first, which can help you prepare, but the school does not issue the license. The DPS does.

Key Takeaways

  • You must hold a valid Texas driver's license, pass a medical exam, and be at least 18 years old (21 for interstate driving) before you can test for a CDL.
  • The written portion covers general knowledge, air brakes, and your specific vehicle class — you study a manual and take tests at a DPS office.
  • The skills test includes a pre-trip inspection, basic controls test, and road test, all performed in the actual vehicle you will drive.
  • A CDL school can teach you to drive and help you prepare for tests, but attending school is not required by Texas law.
  • The entire process from starting to holding a CDL typically takes two to four months, depending on how fast you study and book your tests.

Prerequisites you must meet before testing

You must be at least 18 years old to hold a CDL in Texas, though if you plan to drive across state lines, you must be 21. You also need a valid Texas driver's license — not a learner's permit, but a full license. If you do not have one, you will need to obtain it first through the standard driver's license process.

You must pass a Department of Transportation (DOT) medical examination performed by a certified medical examiner. This exam checks your vision, hearing, blood pressure, and other health factors. The examiner issues a Medical Certificate (Form MCSA-5875) if you pass. You bring this certificate when you test for your CDL. The exam costs money — the amount varies by provider, typically between $75 and $150 — and is not covered by the state.

You must also have a valid Social Security number and proof of Texas residency. Bring documents like a utility bill, lease, or mortgage statement to your DPS appointment.

The written tests you must pass

The written portion has three parts: a general knowledge test, an air brakes test, and a test specific to the class of vehicle you want to drive. You study using the Texas CDL Manual, which you can read free from the DPS website or pick up at any DPS office.

The general knowledge test covers traffic laws, vehicle inspection, and safe driving practices. It is 50 questions, and you must score at least 80 percent. The air brakes test is 25 questions about how air brake systems work — you must score at least 80 percent on this one too. If your vehicle has air brakes, you must pass this test. If it does not, you can skip it, but many drivers take it anyway because it removes restrictions from their license.

The vehicle-specific test depends on whether you are testing for Class A (tractor-trailer), Class B (straight truck), or Class C (small commercial vehicle). Each test is 30 questions, and you must score at least 80 percent. You take all three written tests at a DPS office. You can take them on the same day or spread them across multiple visits — DPS does not require you to pass them all at once, though many people do.

The skills test: what happens on test day

After you pass the written tests, you schedule a skills test with a DPS examiner. This test has three parts and takes place in the actual commercial vehicle you will be driving. You cannot use a different truck or trailer on test day — it must be the one you have been practicing in.

The pre-trip inspection requires you to walk around the vehicle and point out safety items to the examiner: lights, tires, mirrors, coupling devices, and brake condition. You do not have to take anything apart, but you must know what to look for and explain what you are checking. This portion lasts about 15 minutes.

The basic controls test happens in a closed course or parking lot. You perform maneuvers like backing in a straight line, backing into an offset alley, and backing into a 90-degree corner. The examiner watches for smooth steering, proper mirror use, and control of the vehicle. This takes about 10 minutes.

The road test lasts 30 to 45 minutes. You drive on public roads while the examiner observes your speed control, lane positioning, turns, and response to traffic. You must follow all traffic laws. The examiner does not ask you to do anything illegal or unsafe — they are watching how you handle normal driving situations.

How CDL schools fit into the process

Attending a CDL school is optional in Texas. You can study the manual on your own, take the written tests, and then find a truck to practice in before the skills test. Many people do this, especially if they already know someone with a commercial vehicle.

A CDL school teaches you to drive a commercial vehicle and prepares you for the written and skills tests. Most programs last four to eight weeks and cost between $3,000 and $7,000, though prices vary widely. Some schools partner with trucking companies that hire graduates, which can lead to a job offer after you pass your tests. Other schools are independent and do not may provide employment.

The advantage of a school is structured instruction and access to practice vehicles. The disadvantage is cost and time commitment. If you choose a school, make sure it is registered with the Texas Workforce Commission (TWC) — this does not mean the state guarantees the quality of training, but it means the school meets basic standards and you can check complaints filed against it.

The timeline from start to license

If you already have a valid Texas driver's license and a DOT medical certificate, you can take your written tests within days of scheduling at a DPS office. Most offices have openings within one to two weeks. Passing all three written tests typically takes one to three hours total.

After you pass the written tests, you schedule the skills test. DPS offices usually have openings two to six weeks out, depending on how busy your local office is. If you attend a CDL school, the school may help you schedule or may have a relationship with a testing location that offers faster appointments.

If you do not yet have a Texas driver's license or medical certificate, add four to six weeks for those steps. If you attend a CDL school, add four to eight weeks for training. Overall, from the day you start to the day you hold a CDL, expect two to four months if you move quickly, or longer if you need to complete prerequisites or attend school.

What happens after you pass the skills test

Once you pass all three written tests and the skills test, you go to a DPS office to have your photo taken and receive your CDL. Bring your medical certificate, your Social Security card, and proof of residency. The DPS issues the license on the spot — you walk out with it the same day.

Your CDL is valid for five years in Texas. Before it expires, you must renew it. Renewal requires passing the medical exam again and paying a renewal fee, but you do not have to retake the written or skills tests unless your license was suspended or revoked.

If you want to drive a different class of vehicle or add endorsements (like hazmat or passenger), you can test for those additions without retesting everything. You take only the written test for the new class or endorsement, then a skills test if required.

Frequently Asked Questions

Do I have to attend a CDL school to get my license?

No. Texas law does not require formal training. You can study the manual on your own, pass the written tests, practice in a commercial vehicle with someone who holds a CDL, and take the skills test. However, a school provides structured instruction and access to practice vehicles, which many people find helpful.

Can I take the written tests at home or online?

No. You must take all written tests in person at a Texas DPS office. You cannot take them online or by mail. DPS administers the tests to prevent cheating and verify your identity.

What if I fail the skills test?

You can retake it. There is no limit to how many times you can test, though each attempt costs a fee (the amount varies by DPS office). Many people pass on the second or third attempt. You do not have to retake the written tests if you already passed them.

Do I need a CDL to drive a pickup truck for work?

Not if the truck weighs 26,000 pounds or less. A CDL is required only for vehicles over 26,001 pounds. If you are unsure about your vehicle's weight, check the manufacturer's specifications or the door jamb label.

How much does the whole process cost?

The DOT medical exam costs $75 to $150. DPS written tests and skills test fees vary by office but typically total $100 to $200. If you attend a CDL school, add $3,000 to $7,000. If you study on your own and practice in a vehicle you already have access to, your cost is mainly the medical exam and testing fees.