What You Need to Know Before You Start

A bus driver license is a Commercial Driver License (CDL) with a Passenger (P) endorsement. You cannot drive a bus that carries more than 15 passengers for compensation with a regular driver license — federal law requires the CDL-P. The process takes several months and involves written tests, a skills test, and a medical examination. Most states require you to hold a regular driver license for at least one year before you can test for a CDL.

The timeline and exact requirements vary by state, but the core steps are the same everywhere: pass a written knowledge test, pass a skills test (pre-trip inspection, basic controls, and road test), and obtain a medical certificate from a Department of Transportation (DOT) examiner. Some states require you to complete a training course first; others do not. You will pay for the medical exam, the written test, and the skills test separately.

If you already hold a regular driver license, you can begin the process when ready in most states. If you do not, you must first obtain a standard driver license and hold it for the required waiting period — usually 12 months — before you can explore for the CDL.

Key Takeaways

  • You must hold a valid regular driver license for at least one year in most states before you can test for a CDL with Passenger endorsement.
  • You will need a Department of Transportation (DOT) medical certificate from an approved examiner before you can take the written or skills test.
  • The written test covers vehicle inspection, safe driving practices, and passenger safety rules specific to buses.
  • The skills test includes a pre-trip vehicle inspection, basic control maneuvers, and a road test with an examiner in the actual bus you will drive.
  • Some states require a training course; others do not, but completing one can reduce test failures and improve your chances of passing on the first attempt.

Step 1: Meet the Basic Requirements

You must be at least 18 years old to hold a CDL within your state and at least 21 years old to drive a bus across state lines. You must hold a valid driver license from your state for at least 12 months before you can test for a CDL. If you do not yet have a driver license, obtain one first and wait the required period before moving forward.

You must also be a U.S. citizen or permanent resident and have a valid Social Security number. Some states require you to pass a background check or have no disqualifying traffic violations on your record. Check your state's DMV website for the exact list of disqualifying offenses — these vary by state but typically include serious traffic violations, DUI convictions, or reckless driving within the past three to five years.

Step 2: Obtain a Department of Transportation Medical Certificate

Before you can test for a CDL, you must pass a medical examination performed by a DOT-certified medical examiner. This is not your regular doctor — it must be someone on the National Registry of Certified Medical Examiners. The exam checks your vision, hearing, blood pressure, and ability to operate a vehicle safely. It costs between $75 and $150 depending on the examiner.

You can find a certified examiner through your state's DMV website or by searching the Federal Motor Carrier Safety Administration (FMCSA) National Registry online. Schedule the exam before you take your written test. The medical certificate is valid for two years and must be current when you take both the written and skills tests. Bring the original certificate to the DMV when you test.

Step 3: Study and Pass the Written Knowledge Test

The written test covers three main areas: general CDL knowledge, air brake systems (if the bus has air brakes), and passenger vehicle safety. The test is multiple-choice and typically contains 50 questions. You must score at least 80 percent to pass. The test is offered at your state's DMV office and costs between $10 and $50 depending on your state.

Study materials are available free on your state's DMV website — read the CDL manual and the Passenger Vehicle manual. Many states also offer practice tests online. Some people study on their own; others take a CDL training course that includes classroom instruction and practice tests. A course typically costs $500 to $2,000 and takes two to four weeks. Taking a course is not required in most states, but it can improve your chances of passing the written test on your first attempt.

You can take the written test as many times as you need to pass, but you must wait a set number of days between attempts — usually three to seven days depending on your state. Check your state's rules before you schedule your first test.

Step 4: Complete a Commercial Driver Training Course (If Required or Recommended)

Some states require you to complete a formal CDL training program before you can take the skills test. Others do not require it but strongly recommend it. Check your state's DMV website to see whether it is mandatory where you live. If it is not required, you can still take a course to prepare — many people find it helpful because instructors teach you the exact skills the examiner will test.

A CDL training course typically lasts two to four weeks and includes classroom instruction, vehicle inspection practice, and behind-the-wheel training in an actual bus. Costs range from $500 to $2,500 depending on the school and your location. Some courses are offered full-time; others are part-time or evening. After you complete the course, the school will issue you a certificate of completion, which you bring to the DMV when you schedule your skills test.

Step 5: Schedule and Pass the Skills Test

The skills test has three parts: a pre-trip vehicle inspection, basic control maneuvers, and a road test. You must pass all three to receive your CDL-P. The entire test takes about 90 minutes. You must bring your own bus or arrange to use one provided by a training school — you cannot use a personal vehicle. The test costs between $100 and $300 depending on your state.

Pre-trip inspection: The examiner will ask you to walk around the bus and point out safety features, check lights, tires, mirrors, and brakes, and explain what you are checking and why. You must know the location and function of every major component.

Basic control maneuvers: You will perform exercises in a closed course or parking lot, such as backing in a straight line, backing into an alley, and parking between two vehicles. These test your ability to control the bus in tight spaces.

Road test: You will drive the bus on public roads with the examiner in the passenger seat. The examiner will direct you and observe your ability to start, stop, turn, merge, and handle the bus safely in traffic. The test includes both city driving and highway driving.

You can take the skills test as many times as you need to pass. If you fail one section, you can retake just that section in most states rather than the entire test. Check your state's rules on retakes and waiting periods.

What Happens After You Pass

Once you pass all three parts of the skills test, the examiner will submit your results to the DMV. Your state will issue your CDL with the Passenger (P) endorsement within one to two weeks. You will receive your new license in the mail or can pick it up at the DMV office. Your CDL is valid for four to eight years depending on your state.

Before you can drive a bus for a company, you will also need to pass a background check and drug screening required by your employer. These are separate from the CDL process. Some employers also require additional training specific to their routes and procedures.

Common Mistakes to Avoid

Do not attempt the written test without studying the official CDL manual for your state — the test covers specific rules and procedures that differ from regular driving. Do not schedule your skills test before you have completed any required training course or have had adequate practice time. Many people fail the skills test on their first attempt because they underestimate how difficult it is to control a large bus in tight spaces.

Do not let your medical certificate expire between the written test and the skills test — if it expires, you will have to retake the written test. Do not assume your regular driver license will still be valid after you receive your CDL — in some states, your regular license is replaced by the CDL. Check your state's rules on this before you test.

Frequently Asked Questions

Can I get a bus driver license if I have a DUI on my record?

It depends on how recent the DUI is and your state's rules. Most states disqualify you if you have a DUI within the past three to five years. Some states have a permanent ban for certain offenses. Check your state's DMV website or call the CDL unit to find out whether your specific record disqualifies you.

How long does the entire process take from start to finish?

If you already hold a regular driver license, the process typically takes two to four months from the time you get your medical certificate to the time you receive your CDL. If you need to complete a training course first, add another two to four weeks. If you do not yet have a regular driver license, add 12 months for the waiting period.

What if I fail the skills test?

You can retake the test. In most states, you can retake just the section you failed rather than the entire test. You must wait a set number of days between attempts — usually three to seven days. Your medical certificate must still be valid when you retake the test.

Do I need to take a CDL training course?

It depends on your state. Some states require it; most do not. Even if it is not required, taking a course can improve your chances of passing the skills test on your first attempt because you will practice in an actual bus with an instructor before you test with an examiner.

Can I drive a school bus with a regular CDL-P?

No. School buses require an additional School Bus (S) endorsement on top of the CDL-P. You must pass a separate written test for the School Bus endorsement and meet additional requirements set by your state's Department of Education. Check your state's DMV website for the specific requirements.