What the Texas CDL test covers and how it's structured

The Texas commercial driver's license test is a two-part exam: a written knowledge test and a behind-the-wheel driving test. You take the written test first at a Texas Department of Public Safety (DPS) office, and if you pass, you schedule the driving test separately with an examiner. The written test covers vehicle inspection, safe driving practices, and cargo handling depending on which endorsements you need. The driving test puts you behind the wheel of an actual commercial vehicle for about 30 to 45 minutes while an examiner watches and scores your performance.

Texas requires you to hold a valid commercial learner's permit (CLP) for at least 14 days before you can take the driving test. You get the CLP by passing the written knowledge test. During those 14 days, you can practice driving a commercial vehicle with a licensed CDL holder in the passenger seat — this is the only legal way to get behind-the-wheel experience before your test.

Key Takeaways

  • You must pass the written knowledge test at a DPS office before you can get a commercial learner's permit and schedule a driving test.
  • Texas law requires you to hold a commercial learner's permit for at least 14 days before taking the behind-the-wheel exam.
  • The driving test takes 30 to 45 minutes and includes a pre-trip vehicle inspection, basic control exercises, and on-road driving in real traffic.
  • You can take the written test multiple times if you fail, but each attempt requires a new test fee and a new appointment.
  • Bring your valid passport, state ID, or other federally approved identification to both the written test and the driving test.

The written knowledge test: what to study and how it's scored

The written test has 50 questions and you must answer at least 40 correctly to pass — that is an 80 percent score. The test covers five main areas: vehicle inspection and maintenance, safe driving practices, cargo handling, hazardous materials (if you are seeking a hazmat endorsement), and air brakes (if your vehicle has them). The exact content depends on which class of CDL you are seeking and which endorsements you need.

Texas DPS publishes a free CDL study guide that covers all the topics on the test. You can read it from the DPS website or pick up a printed copy at any DPS office. The guide is the official source material, and the test questions come directly from it. Most people study the guide for two to four weeks before taking the test, though the time you need depends on your familiarity with commercial vehicles and driving regulations.

You take the written test on a computer at a DPS office. The test takes about 30 to 60 minutes. You get your score when ready after you finish. If you pass, the examiner prints your commercial learner's permit on the spot. If you fail, you can retake the test, but you must wait at least one day before your next attempt and pay the test fee again.

The 14-day waiting period and how to use it

After you pass the written test and receive your commercial learner's permit, Texas law requires you to wait at least 14 calendar days before you can take the driving test. This waiting period exists so you have time to practice driving a commercial vehicle under real conditions. You cannot use this time to sit in a classroom or watch videos — you must actually drive a commercial truck or bus with a licensed CDL holder sitting next to you.

The person supervising your practice must hold a valid CDL in the same class you are seeking and must be at least 21 years old. They do not need to be a professional instructor. Many people practice with a current truck driver, a family member who holds a CDL, or a paid instructor. There is no minimum number of practice hours required by law, but most people practice for 20 to 40 hours before the test to build confidence and muscle memory.

You can schedule your driving test appointment anytime after the 14 days have passed. The DPS office will not let you book an earlier date. If you schedule your test for day 15 or later, you are within the law.

The behind-the-wheel driving test: what happens and how you are scored

The driving test has three parts: a pre-trip vehicle inspection, basic control exercises, and on-road driving. The entire test takes 30 to 45 minutes. You must pass all three parts to pass the test overall.

The pre-trip inspection requires you to walk around the vehicle and point out or demonstrate specific components — lights, brakes, tires, mirrors, coupling devices, and safety equipment. The examiner asks you to show where things are and explain what you are checking for. You do not need to take anything apart or use tools. This part usually takes 5 to 10 minutes.

The basic control exercises take place in a closed course or parking lot. You perform maneuvers like backing in a straight line, backing into an offset alley, and making a 90-degree turn. These exercises test your ability to control the vehicle precisely. You have limited attempts to complete each maneuver — typically one or two — and hitting cones or curbs or taking too many attempts results in failure on that exercise.

The on-road driving portion takes you into real traffic. The examiner directs you through city streets, highways, or both depending on the test route. You must obey all traffic laws, maintain safe speeds, use proper signaling, merge correctly, and handle curves and hills. The examiner watches for smooth acceleration, appropriate braking, lane control, and awareness of other vehicles. This part usually lasts 15 to 25 minutes.

You fail the test if you commit a critical error — such as hitting a cone during the basic control exercises, running a red light, or losing control of the vehicle — or if you accumulate too many minor errors across all three parts. The examiner scores you on a point system, and you must stay below a certain number of points to pass.

Documents you need to bring and scheduling your test

For both the written test and the driving test, bring a valid form of federally approved identification. Acceptable documents include a U.S. passport, a passport card, a REAL ID-compliant driver's license, a military ID, or a permanent resident card. A regular Texas driver's license without REAL ID marking is not enough. Bring the original document, not a copy.

You also need to bring your commercial learner's permit to the driving test. The permit is your proof that you passed the written test and have waited the required 14 days.

To schedule the written test, visit a DPS office in person or go to the DPS website to book an appointment online. Many offices allow online scheduling, which lets you pick a date and time that works for you. Walk-ins are sometimes accepted, but wait times can be long. The test fee is set by the state and does not vary by location.

To schedule the driving test, you must visit a DPS office in person or call the office where you want to take the test. Not all DPS offices offer driving tests — some are written-test-only locations. The office staff can tell you which locations near you offer the driving test and help you book a slot. Driving test appointments often fill up weeks in advance, so schedule as soon as you are may be able to access.

Common reasons people fail and how to avoid them

The most common reason for failing the driving test is poor performance on the basic control exercises, especially backing maneuvers. These require precision and practice. Many people underestimate how much practice they need and schedule their test too soon after getting the learner's permit. Spending extra time in a parking lot practicing backing and turning before your test date significantly improves your chances.

On-road failures often happen because of traffic law violations — running a stop sign, improper lane changes, or speeding — or because of vehicle control issues like jerky braking or drifting between lanes. Nervousness plays a role; some people drive differently during the test than they do during practice. Practicing with different instructors and in different traffic conditions helps you stay calm and consistent.

Pre-trip inspection failures are less common but do happen when someone forgets what to check or cannot locate a component on the specific vehicle used for the test. Different trucks and buses have slightly different layouts. If you practice on one vehicle, ask to practice on a different one before your test so you learn where things are on other vehicles.

What happens after you pass the driving test

If you pass the driving test, the examiner tells you when ready. You then go to a DPS office to complete the final step: paying the CDL issuance fee and having your photo taken for your permanent commercial driver's license. This usually happens within a few days of passing the test. Your temporary permit is valid while you wait for the physical license to arrive by mail, which takes one to two weeks.

If you fail the driving test, you can retake it. There is no waiting period between attempts, but you must schedule a new appointment and pay the test fee again. You keep your commercial learner's permit and can continue practicing. Many people pass on their second or third attempt after more practice.

Frequently Asked Questions

Can I take the written test and driving test on the same day?

No. Texas requires you to hold the commercial learner's permit for at least 14 calendar days before you can take the driving test. You must pass the written test first to get the permit, so the earliest you can take the driving test is day 15.

What vehicle do I use for the driving test?

You must provide your own commercial vehicle that matches the class of CDL you are seeking. The vehicle must be registered, insured, and in safe working condition. The examiner will inspect it before the test begins. If your vehicle fails inspection, you cannot take the test that day.

Do I need a professional driving school to pass the test?

No. You can practice with any licensed CDL holder and study the free DPS study guide on your own. Many people pass without formal instruction. However, some people find that a professional instructor helps them learn faster or feel more confident, especially if they have no commercial driving experience.

What if I fail the written test?

You can retake it after one day has passed. You must pay the test fee again and schedule a new appointment. There is no limit on how many times you can retake the written test, though most people pass within two or three attempts after studying the guide more thoroughly.

How long is the commercial learner's permit valid?

The commercial learner's permit is valid for 180 days from the date it is issued. If you do not pass the driving test within that time, you must retake the written test and get a new permit. The permit is not renewable — you start over with a new written test.