The Texas CDL Permit Test Covers Vehicle Control, Road Rules, and Safety

The Texas CDL permit test is a written exam administered by the Texas Department of Public Safety (DPS) that you must pass before you can drive a commercial vehicle on public roads. The test covers three main areas: general knowledge about commercial vehicles, the specific rules for the class of license you are seeking, and air brake systems if your vehicle has them.

You take the test at a DPS office or an approved third-party testing location. The exam is multiple choice, and you must answer questions correctly to pass. The passing score and number of questions vary depending on which endorsements or restrictions you need, but the general knowledge section is required for all CDL applicants in Texas.

The test is not the same as the road skills test you take later. The permit test only measures what you know; it does not measure whether you can actually operate the vehicle. You need to pass the permit test first, then practice driving with a permit before you take the road test.

Key Takeaways

  • The Texas CDL permit test is a written exam you take at a DPS office or approved testing site before you can legally drive a commercial vehicle.
  • The test covers general knowledge, rules specific to your license class, and air brake systems, with different question counts and passing scores depending on your endorsements.
  • You must pass the permit test before you can get a CDL permit, and you must have a valid permit before you can take the road skills test.
  • Study materials are free and available from the Texas DPS website, including the official CDL manual and practice tests.
  • You can retake the test if you do not pass, but you may have to wait a set number of days between attempts depending on Texas DPS policy.

What the Texas CDL Permit Test Actually Tests

The general knowledge section is required for all CDL applicants and covers topics like vehicle inspection, basic control of the vehicle, shifting gears, backing up, and how to respond to emergencies. You will also answer questions about hours of service rules, weight limits, and how to find cargo.

If you are seeking a Class A or Class B license, you will take an additional test on the rules specific to that class. If your vehicle has air brakes, you must pass an air brake section. If you want endorsements like hazmat, tanker, or passenger, each one has its own test section.

The number of questions on each section varies. The general knowledge section typically has around 50 questions, but the exact number can change. You need to score at least 80 percent on each section you take in order to pass.

How to Prepare for the Texas CDL Permit Test

The Texas DPS publishes the official CDL manual free of charge on its website. This manual contains all the information covered on the permit test. Reading through it systematically is the most direct way to prepare, because the test questions are drawn from the material in the manual.

Practice tests are also available free from the Texas DPS website and from other sources. Taking practice tests helps you get used to the format and identify which topics you need to study more. Practice tests are not identical to the real test, but they cover the same material and give you a realistic sense of what to expect.

Some people study on their own using the manual and practice tests. Others take a CDL training course, which typically includes classroom instruction and behind-the-wheel training. A training course is not required to take the permit test, but many people find it helpful, especially if they have no experience driving large vehicles.

Where and How to Take the Test in Texas

You take the CDL permit test at a Texas DPS office or at an approved third-party testing location. DPS offices are located throughout the state. Third-party testing sites are private businesses that have been approved by DPS to administer the test; they charge a fee in addition to the DPS test fee.

You will need to bring a valid form of identification, proof of Texas residency, and proof of your Social Security number. You may also need to bring other documents depending on your situation — for example, if you are a non-citizen, you may need to show proof of legal presence in the United States.

The test is administered on a computer at most locations. You will sit at a terminal, read each question, and select your answer. The computer will tell you when ready whether you passed or failed. If you pass, you will receive a permit that allows you to drive a commercial vehicle while supervised by a licensed CDL holder.

What Happens If You Do Not Pass the First Time

If you do not pass the permit test, you can retake it. Texas DPS rules allow you to retake the test, but there may be a waiting period between attempts. The exact waiting period depends on current DPS policy and may vary, so check with your local DPS office or the DPS website for the current rules.

When you retake the test, you will answer a different set of questions, but they will cover the same material as the first test. Many people who fail the first time study the same material more thoroughly and pass on the second attempt. If you failed because you did not study enough, spending more time with the manual and practice tests before your next attempt will improve your chances.

There is no limit to how many times you can retake the test, but each attempt costs money. The DPS test fee is set by the state, and third-party testing sites charge their own fees on top of that.

The Difference Between the Permit Test and the Road Skills Test

The permit test is a written exam that tests your knowledge. The road skills test is a practical exam where you actually drive a commercial vehicle and show that you can operate it safely. You cannot take the road skills test until you have passed the permit test and obtained a CDL permit.

Once you have your permit, you must practice driving with a licensed CDL holder in the passenger seat. Texas law requires that you have a certain amount of supervised driving experience before you can take the road skills test. The road skills test includes a pre-trip inspection, a basic control test, and an on-road driving test.

Many people pass the permit test but struggle with the road skills test because they have not had enough practice or because they are not comfortable operating a large vehicle. The permit test only shows that you know the rules; it does not show that you can explore those rules while actually driving.

CDL Permit Requirements and Restrictions in Texas

Once you pass the permit test and receive your CDL permit, you can drive a commercial vehicle, but only under certain conditions. You must have a licensed CDL holder in the passenger seat at all times. You cannot drive alone, and you cannot drive at night in most cases — the exact restrictions depend on your permit type.

Your permit is valid for a limited time, usually 180 days, though this can vary. You must pass the road skills test before your permit expires, or you will have to retake the permit test and start over. If you do not pass the road skills test on your first try, you can retake it, but you will need a valid permit to do so.

If you are seeking certain endorsements, like hazmat or tanker, you may have additional requirements beyond the permit test. For example, hazmat endorsement requires a background check and a separate written test. Check with the Texas DPS to understand all the requirements for the specific license and endorsements you need.

Frequently Asked Questions

How many questions are on the Texas CDL permit test?

The general knowledge section typically has around 50 questions, but the exact number can vary. If you are taking additional sections for your license class or endorsements, each section will have its own set of questions. The Texas DPS website lists the specific number for each section.

What score do I need to pass the Texas CDL permit test?

You must score at least 80 percent on each section of the test. If you take multiple sections, you must pass all of them. If you fail one section but pass another, you will need to retake only the section you failed.

Can I use study materials from other states to prepare for the Texas test?

CDL rules are largely the same across all states, so materials from other states will cover most of the same topics. However, some rules vary by state, and the Texas test focuses on Texas-specific rules and procedures. Use the official Texas CDL manual as your primary study source to make sure you are learning the correct information for Texas.

How long does it take to get results after I take the permit test?

You will know whether you passed or failed when ready after you finish the test. If you pass, you will receive your permit on the spot or shortly after. If you fail, you can usually retake the test after waiting the required number of days.

Do I have to take the permit test if I already have a CDL from another state?

If you hold a valid CDL from another state and you move to Texas, you may be able to transfer your license without retaking the permit test. Contact the Texas DPS to find out what documents you need to bring and whether you will need to take any tests.