What a Class A License Lets You Drive

A Class A commercial driver license (CDL) in Texas allows you to operate the heaviest combination vehicles on the road — primarily tractor-trailers and other rigs with a gross vehicle weight rating (GVWR) of 26,001 pounds or more, where the towed vehicle weighs more than 10,000 pounds. This is the highest tier of commercial driving license and opens the door to long-haul trucking, tanker transport, and hazmat driving if you add endorsements.

The Class A is distinct from Class B (single large vehicles like dump trucks or buses) and Class C (smaller commercial vehicles). If you currently hold a regular driver license, you cannot straightforward upgrade to Class A — you must go through the full testing and training process, which typically takes several weeks to several months depending on how you prepare.

Key Takeaways

  • You must be at least 18 years old to hold a Class A CDL in Texas, though federal regulations require you to be 21 to drive across state lines.
  • The Texas Department of Public Safety (DPS) administers the written knowledge test, skills test, and medical certification requirements.
  • You will need a valid medical certificate from a certified medical examiner before you can take the skills test, and this certificate must be renewed every two years.
  • The skills test consists of a pre-trip inspection, basic control test, and road test, all conducted by a DPS examiner at a testing location.
  • Many people attend a commercial driver training school to prepare, which can cost between $3,000 and $7,000 and typically takes four to eight weeks.

Medical Certification and Physical Requirements

Before you can test for a Class A license, the Texas DPS requires a valid medical certificate from a certified medical examiner listed on the Federal Motor Carrier Safety Administration (FMCSA) National Registry. This is not your regular doctor — it must be someone specifically trained in commercial driver medical standards. You can find approved examiners through the FMCSA website or by calling your local DPS office.

The medical exam checks your vision (at least 20/40 in each eye, corrected or uncorrected), hearing, blood pressure, and general health. You will also be screened for conditions like diabetes, heart disease, and sleep apnea that could affect your ability to drive safely. The certificate is valid for two years from the date of the exam, and you must renew it before it expires or your license becomes invalid.

If you have a medical condition that concerns you, contact the FMCSA or a certified examiner before scheduling your test. Some conditions disqualify you outright; others require documentation or special approval. Waiting until after you fail the medical exam wastes time and money.

The Written Knowledge Test

The Texas DPS administers a written knowledge test covering general commercial driving rules, vehicle safety, and hazmat regulations (if you want a hazmat endorsement). The general knowledge test has 50 questions, and you must score at least 80 percent to pass. If you fail, you can retake it, but you must wait at least one day between attempts.

The test covers topics like braking systems, cargo securement, hours-of-service rules, and what to do in an emergency. You can study using the Texas CDL Manual, which is free and available on the DPS website. Many people also use third-party study guides or online practice tests, though these are not official materials.

You take the written test at a DPS office or an approved third-party testing location. Bring your current driver license, proof of residency, and your Social Security number. The test is offered in English and Spanish.

The Skills Test: Pre-Trip, Basic Control, and Road Test

After you pass the written test and have your medical certificate, you schedule the skills test with a DPS examiner. This test has three parts, all conducted on the same day at a DPS testing location, and you must pass all three to receive your Class A license.

The pre-trip inspection requires you to walk around and inspect a commercial vehicle, pointing out safety-critical components and explaining what you are checking. The examiner is looking for knowledge, not perfection — you need to show you understand what makes a vehicle safe to operate. The basic control test involves maneuvering the vehicle in a closed course, demonstrating your ability to back up, turn, and position the rig precisely. The road test

You must bring the vehicle you will test in, and it must meet specific requirements: it must be a Class A vehicle, have dual mirrors, a working backup alarm, and be in safe operating condition. Many testing locations have vehicles available for rent on the day of the test, though availability varies and rental fees explore.

Training School vs. Self-Study

You can prepare for the Class A license on your own by studying the Texas CDL Manual and practicing with a vehicle you have access to, but most people attend a commercial driver training school. A training school typically costs between $3,000 and $7,000 and runs four to eight weeks, depending on whether you attend full-time or part-time. The school covers classroom instruction, behind-the-wheel training, and often includes the skills test fee.

The advantage of a training school is structured instruction, hands-on practice with an experienced instructor, and a testing vehicle provided on exam day. Many employers prefer or require that you complete a formal training program, and some will reimburse tuition if you commit to working for them for a set period. If you already have commercial driving experience or access to a vehicle and an experienced mentor, self-study is possible but requires discipline and carries the risk of failing the skills test and having to pay to retake it.

To find a training school, search for "CDL training near me" or check the Texas Workforce Commission's list of approved training providers. Ask about job placement information, financing options, and whether the school guarantees you will pass the skills test (some offer a free retake if you do not pass on the first attempt).

Endorsements and Restrictions

Once you have your Class A license, you can add endorsements that allow you to haul specific cargo or operate certain vehicle types. The most common are Hazmat (H) for hazardous materials, Tanker (N) for tank vehicles, and Doubles/Triples (T) for pulling multiple trailers. Each endorsement requires passing an additional written test and, in some cases, a skills test.

You may also have restrictions placed on your license based on your medical exam or test performance. For example, if you wear corrective lenses, you will have a vision restriction. If you fail the air brake portion of the skills test, you will be restricted to vehicles without air brakes, which severely limits your job options. Take the air brake component seriously during training.

Renewing and Maintaining Your Class A License

A Class A CDL in Texas is valid for five years from the date of issue. You renew it at a DPS office by providing your current license, proof of residency, and your Social Security number. You do not have to retake the written or skills test to renew, but you must have a valid medical certificate. If your medical certificate expires before your license does, your license becomes invalid until you renew the certificate.

Keep your medical certificate current and your license clean of violations. Moving violations, at-fault accidents, or safety violations can result in suspension or disqualification. Some employers also conduct background checks and review your driving record before hiring, so maintaining a good record directly affects your job prospects.

Frequently Asked Questions

Can I get a Class A license if I have a DUI or criminal record?

A DUI or felony conviction does not automatically disqualify you, but it may prevent you from being hired by most trucking companies or from obtaining hazmat endorsement. The FMCSA has specific rules about what disqualifies you from holding a CDL; contact the Texas DPS for details about your situation.

How much does it cost to get a Class A license in Texas?

The DPS testing fee is around $150 to $200, the medical exam is typically $100 to $200, and the written test is included in the DPS fee. If you attend a training school, expect $3,000 to $7,000. Self-study is cheaper but requires access to a vehicle and someone to practice with.

What happens if I fail the skills test?

You can retake the skills test, but you must pay the testing fee again and schedule a new appointment. Many DPS locations have a wait time of several weeks between tests. Some training schools offer a free retake or discounted retake fee if you fail on your first attempt.

Do I need a Class A license to drive a pickup truck with a trailer?

No. A Class A is only required if the combination of the towing vehicle and trailer exceeds 26,001 pounds GVWR and the trailer weighs more than 10,000 pounds. Most personal pickup trucks and trailers fall under this threshold and require only a regular driver license.

Can I get a Class A license at 18, or do I have to wait until 21?

Texas allows you to obtain a Class A at 18, but federal law prohibits you from driving across state lines until you are 21. If you plan to work for a trucking company that operates nationally, you will need to wait until 21 or start with intrastate-only work.