A Class B license is for driving single vehicles over 26,001 pounds, but not for towing or carrying passengers for money

A Class B driver's license authorizes you to operate a single large vehicle — typically a truck, bus, or RV — that weighs more than 26,001 pounds. The key word is "single": you cannot tow a trailer or another vehicle behind it. You also cannot use it to transport passengers for payment, which would require a different class. Most states issue Class B licenses to people who drive delivery trucks, dump trucks, or large RVs for personal use.

The weight threshold matters because vehicles over 26,001 pounds require different handling, braking, and awareness than standard cars. That is why the licensing system separates them. A Class B is heavier than what a regular driver's license (usually Class D or Class C) covers, but lighter in responsibility than a Class A, which allows you to tow trailers and handle combinations of vehicles.

Key Takeaways

  • A Class B license covers single vehicles weighing more than 26,001 pounds, such as large trucks and buses.
  • You cannot tow a trailer or another vehicle with a Class B license — that requires a Class A.
  • You cannot use a Class B license to transport passengers for payment; that requires a commercial passenger endorsement.
  • Most states require you to pass a written test and a skills test specific to large vehicles to obtain a Class B.
  • Some Class B licenses are commercial (CDL) and some are non-commercial, depending on how you use the vehicle.

Class B versus Class A and other license classes

The main difference between Class B and Class A is towing. A Class A license allows you to operate any single vehicle and tow a trailer or another vehicle behind it, as long as the trailer weighs more than 10,000 pounds. Class B does not include that towing privilege. If you need to pull a trailer, you must upgrade to Class A.

Class B also differs from a standard driver's license (Class C or D, depending on your state). A regular license covers vehicles up to 26,000 pounds. Anything heavier requires Class B or higher. Class B is also separate from Class C, which in some states covers vehicles between 26,001 and a certain upper weight limit, or which covers towing a trailer under a certain weight.

The exact weight thresholds and class names vary by state. Some states use numbers (Class 1, Class 2), while others use letters. Check your state's Department of Motor Vehicles website to see how your state defines each class, because the rules are not identical everywhere.

Commercial versus non-commercial Class B

Some Class B licenses are commercial (part of a Commercial Driver's License, or CDL), and some are non-commercial. The difference is how you use the vehicle. If you drive a large truck or bus as part of your job — for delivery, hauling, or any business purpose — you need a commercial Class B CDL. If you drive a large RV or truck only for personal use, you may be able to get a non-commercial Class B.

Commercial Class B licenses have stricter requirements. You must pass a medical exam, a written knowledge test, and a behind-the-wheel skills test. You must also meet federal hours-of-service rules if you are driving across state lines. Non-commercial Class B licenses typically require a written test and a skills test, but not the medical exam or the same federal oversight.

Your employer or the vehicle's intended use determines which type you need. If you are unsure, contact your state's DMV or ask your employer before you test.

What you need to test for a Class B license

To obtain a Class B license, you will need to pass a written test and a driving skills test. The written test covers large-vehicle operation, braking systems, load handling, and safety rules specific to heavy vehicles. The skills test happens in an actual large vehicle and includes a pre-trip inspection (checking brakes, lights, and tires), basic vehicle control (backing, turning, parking), and on-road driving.

Before you test, you will need a valid regular driver's license, proof of residency, and proof of identity. If you are seeking a commercial Class B, you will also need to pass a Department of Transportation (DOT) medical exam and provide the results to the DMV. Some states require you to hold a learner's permit for a certain period before you can test for the skills portion.

Study materials are usually available on your state's DMV website, often as a free handbook or practice test. Many people take a commercial driving school course before testing, which can improve your chances of passing the skills test on the first attempt.

Restrictions and endorsements on a Class B license

A Class B license may come with restrictions printed on the card itself. Common restrictions include "not valid for towing," "automatic transmission only," or "corrective lenses required." These restrictions are specific to you and your vehicle. You must follow them or you are driving illegally.

Some Class B licenses also require endorsements — additional qualifications for specific tasks. For example, if you drive a bus, you may need a passenger endorsement (usually marked "P"). If you transport hazardous materials, you need a hazmat endorsement (marked "H"). These endorsements require additional tests and background checks beyond the basic Class B test.

Check your license card to see what restrictions and endorsements you have. If you believe a restriction is incorrect or if you need an endorsement for a new job, contact your state's DMV to request a change.

Renewing and maintaining your Class B license

Class B licenses must be renewed periodically, usually every four to eight years depending on your state. If your Class B is commercial (a CDL), you must renew your DOT medical certification every two years, and your license renewal is tied to that medical exam. Non-commercial Class B licenses typically have a longer renewal cycle and do not require a medical exam.

When you renew, you may need to retake the written test, the skills test, or both. Some states allow you to renew by mail or online if you have no violations, while others require you to appear in person. Check your state's DMV website for renewal requirements and important date, because missing a renewal important date can result in an expired license and fines if you continue to drive.

Frequently Asked Questions

Can I tow a trailer with a Class B license?

No. A Class B license does not include towing privileges. If you need to tow a trailer, you must upgrade to a Class A license, which allows you to operate any single vehicle and tow a trailer weighing more than 10,000 pounds.

Do I need a Class B license to drive an RV?

It depends on the RV's weight. If your RV weighs 26,001 pounds or more, you need a Class B license. If it weighs 26,000 pounds or less, a regular driver's license is sufficient. Check your RV's gross vehicle weight rating (GVWR) in the owner's manual or on the door frame to know for sure.

What is the difference between a commercial and non-commercial Class B?

A commercial Class B (CDL) is for driving large vehicles as part of your job. A non-commercial Class B is for personal use only. Commercial Class B requires a DOT medical exam and stricter testing; non-commercial does not.

Can I drive a bus with a Class B license?

You can drive a bus with a Class B license if the bus weighs more than 26,001 pounds and you have a passenger endorsement. The passenger endorsement requires an additional test. Without it, you cannot legally transport passengers for any purpose.

How long does it take to get a Class B license?

The timeline varies by state and whether you need a commercial or non-commercial license. Most people spend two to four weeks studying and preparing for the written and skills tests. The actual testing process usually takes one to two days. If you need a DOT medical exam for a commercial license, add time for scheduling that appointment.