What a Class B license lets you drive

A Class B license is for driving single vehicles — not combinations of vehicles — that weigh more than what a regular Class C license covers. The exact weight threshold varies by state, but generally a Class B covers vehicles between 10,001 and 26,000 pounds gross vehicle weight rating (GVWR). This includes many delivery trucks, small box trucks, buses that carry fewer than 16 passengers, and some RVs.

The key difference from a Class C is that you're driving one large vehicle rather than a car or light truck. You're not towing a trailer or operating a semi-truck combination — that's Class A. If you drive a dump truck, a moving van, or a small tour bus for your job, you likely need a Class B.

Key Takeaways

  • A Class B license covers single vehicles over a certain weight, usually between 10,001 and 26,000 pounds GVWR, and requirements vary significantly by state.
  • You will need to pass a written knowledge test specific to Class B vehicles, a skills test in an actual vehicle of that class, and a vision and medical exam.
  • Some states require a Commercial Driver's License (CDL) for Class B vehicles; others issue a regular Class B — check your state's DMV website to know which applies to you.
  • The written test covers vehicle operation, safety, and weight distribution; the skills test includes a pre-trip inspection, basic controls, and on-road driving.
  • Preparation typically takes a few weeks of study and practice, and you should schedule your skills test well in advance since test slots fill quickly.

Check whether your state calls it Class B or CDL

This is the first step because the answer changes what you do next. Some states have a Class B regular driver's license for vehicles over a certain weight but under the federal CDL threshold. Other states skip that category and require a Commercial Driver's License (CDL) for anything heavier than a standard car or light truck.

Go to your state's Department of Motor Vehicles website and search for "Class B license" or "commercial vehicle license requirements." The page will tell you the weight thresholds and whether you need a CDL or a Class B regular license. If your state uses Class B, the DMV site will list the tests and documents you need. If your state requires a CDL for the vehicle you want to drive, follow the CDL process instead — it includes an additional medical certification step.

Write down the GVWR threshold for your state and the exact vehicle class you need. You'll use this when you study, because the written test focuses on the rules for that specific class.

Gather documents and pass the vision test

Before you can take any written or skills test, you need to visit your local DMV office with proof of identity, proof of residency, and your Social Security number. Bring your current driver's license if you have one. The DMV will check your vision — you'll read an eye chart — and may ask about your medical history. If you wear glasses or contacts, bring them.

Some states require a medical exam by a licensed doctor before you take the Class B test. The form is usually available on the DMV website; your doctor fills it out and you bring it to the DMV. This is separate from the vision screening and typically costs $50 to $150 out of pocket. Check your state's requirements before you schedule anything, because you may need the medical form completed before you can register for the written test.

Once the DMV confirms your vision is acceptable and your documents are in order, you can schedule your written test. Many states let you book this online or by phone; others require you to show up in person and take it the same day.

Study for and take the written knowledge test

The written test covers how Class B vehicles handle differently than regular cars — braking distance, weight distribution, turning, backing up, and how to inspect the vehicle before driving. You'll also answer questions about traffic laws, road signs, and safe driving practices specific to larger vehicles.

Your state's DMV publishes a free study guide, usually called the "Commercial Driver's License Manual" or "Class B Study Guide," available as a PDF on the website or in print at the DMV office. Read through it at least twice. Pay special attention to sections on air brakes, anti-lock brakes, vehicle inspection, and load securement, because these appear on almost every Class B test.

The test is usually 50 questions, and you need to score 80 percent or higher to pass. You take it at a DMV office on a computer or on paper, depending on your state. Most people need two to four weeks of study to pass on the first attempt. If you don't pass, you can retake it after a waiting period — usually one to seven days — and most states let you retake it as many times as you need.

Schedule and prepare for the skills test

Once you pass the written test, you're cleared to take the skills test. This is the driving test, and it happens in an actual Class B vehicle. You must provide the vehicle yourself or arrange to use one through a commercial driving school. The vehicle has to be registered, insured, and in safe working condition — the examiner will check this before the test starts.

The skills test has three parts. First, the pre-trip inspection: you walk around the vehicle and point out safety features, lights, tires, mirrors, and brakes while the examiner watches and asks questions. Second, the basic controls test: you perform maneuvers like backing up in a straight line, backing into a space, and turning in a confined area. Third, the on-road driving test: you drive on public roads or a closed course for 15 to 30 minutes while the examiner watches and scores your steering, braking, lane changes, and overall control.

Book your skills test as soon as you pass the written test, because slots fill up quickly — sometimes weeks in advance. Bring your written test passing score, your current driver's license, and proof of vehicle insurance. Arrive 15 minutes early.

What to expect on test day and after

On the day of your skills test, the examiner will meet you at the DMV or testing location and walk to the vehicle with you. They'll watch you do the pre-trip inspection — this usually takes 10 to 15 minutes. Then you'll move to the basic controls area and perform the backing and turning maneuvers. Finally, you'll drive on the road or closed course while the examiner sits in the passenger seat and takes notes.

The entire test takes 45 minutes to an hour. The examiner scores you on smooth steering, proper braking, safe speed, mirror checks, and following instructions. If you fail, you can retake it after a waiting period — usually one to two weeks. Most people pass on the second or third attempt if they practice with the actual vehicle beforehand.

If you pass, the examiner will tell you on the spot. You'll go back to the DMV office, pay the license fee (usually $20 to $60), and receive your Class B license. Some states mail it to you within a week; others issue it the same day. Your new license will show the Class B designation and any restrictions — for example, "not valid for air brake vehicles" if you didn't take the air brake portion of the test.

Using a commercial driving school

You don't have to use a driving school, but many people do because the school provides the vehicle for the skills test and an instructor who knows exactly what the examiner is looking for. A typical course costs $500 to $1,500 and includes classroom instruction, practice driving, and the skills test appointment. The school handles scheduling and paperwork.

If you go this route, make sure the school is licensed by your state and that their instructors are certified. Ask whether the course includes the skills test fee or if that's extra. Some schools may provide you'll pass or offer a free retake if you don't — ask about this upfront. A school can cut your preparation time in half if you're short on time or uncomfortable driving a large vehicle on your own.

Frequently Asked Questions

Do I need a Class B license or a CDL?

It depends on your state and the vehicle's weight. Check your state DMV website for the weight threshold that triggers Class B or CDL requirements. Some states have a Class B category for vehicles between 10,001 and 26,000 pounds; others require a CDL for anything over 10,000 pounds. The DMV website will tell you which applies.

Can I take the skills test in a borrowed vehicle?

Yes, as long as the vehicle is registered, insured, and in safe working condition. The examiner will inspect it before the test. The vehicle's owner does not have to be present, but you should have written permission from them and proof of insurance. Some testing centers require the vehicle to be registered in your name or have specific requirements — call ahead to confirm.

What happens if I fail the skills test?

You can retake it after a waiting period, usually one to two weeks. There is no limit on how many times you can retake it. Most people pass on the second or third attempt. If you fail, ask the examiner what you did wrong so you can practice that specific skill before the next test.

How long is a Class B license valid?

Most states issue Class B licenses that are valid for four to eight years, the same as a regular driver's license. Check your state's DMV website for the exact renewal period. You renew it the same way you renew a regular license — by mail, online, or in person at the DMV — though some states require a new medical exam at renewal.

Do I need to take a written test again if I already have a regular driver's license?

Yes. Even if you have a valid Class C license, you must pass the Class B written test because it covers vehicle-specific knowledge that regular drivers don't need. You do not retake the vision test if you passed it recently for your regular license renewal, but you will take a new written test.