What a Class B license covers and who needs one

A Class B license lets you drive single vehicles weighing up to 26,001 pounds — larger than a regular passenger car but smaller than a full commercial truck. This includes vehicles like box trucks, dump trucks, large vans, and some RVs. You need a Class B if your job involves driving these vehicles or if you want to operate one privately.

The exact weight threshold and what vehicles fall under Class B varies by state. Some states call it a Class B Commercial Driver's License (CDL), while others use different naming. Check your state's Department of Motor Vehicles (DMV) website to confirm which vehicles require this license in your state.

The main difference between a Class B and a regular passenger license is the testing and medical requirements. You'll take a written exam covering vehicle operation and safety rules specific to larger vehicles, and you may need to pass a Department of Transportation (DOT) medical exam depending on your state and the vehicle type.

Key Takeaways

  • A Class B license covers single vehicles between 10,001 and 26,001 pounds, depending on your state's rules.
  • You must pass a written knowledge test, a skills test (driving test), and a vehicle inspection before you receive the license.
  • Many states require a DOT medical certificate if you're driving commercially, which involves a physical exam by a certified medical examiner.
  • The entire process typically takes several weeks to a few months, depending on how quickly you schedule your tests and how many attempts you need.
  • You can prepare by studying your state's CDL manual, taking practice tests, and getting hands-on driving experience in the vehicle type you'll operate.

Step-by-step process to obtain your Class B license

Start by visiting your state's DMV website and downloading the Class B or Commercial Driver's License manual. This manual covers the rules, safety procedures, and vehicle operation specific to larger vehicles. Read it thoroughly — the written test pulls directly from this material.

Next, schedule your written knowledge test at your local DMV office. You'll answer questions about vehicle operation, braking systems, cargo handling, and safety. The number of questions and passing score vary by state, but typically you need to score 80 percent or higher. You can usually take this test the same day you visit, though some offices require an appointment.

After you pass the written test, you'll schedule a skills test, which includes a vehicle inspection and a driving test. During the vehicle inspection, you'll walk around the truck or vehicle and point out safety features — lights, mirrors, brakes, tires, and other components. The examiner will ask you to demonstrate that you know what to check and why.

The driving test itself lasts 30 to 45 minutes and takes place on public roads. You'll perform tasks like backing up, turning, parking, and merging while the examiner watches and scores your performance. You must demonstrate safe operation and follow all traffic laws during the test.

Medical certification requirements

If you're driving commercially or if your state requires it for Class B vehicles, you'll need a DOT medical certificate. This is not the same as a regular doctor's visit. You must see a medical examiner certified by the Federal Motor Carrier Safety Administration (FMCSA), not your personal physician.

The medical exam checks your vision, hearing, blood pressure, and ability to operate a large vehicle safely. You'll also answer questions about your medical history, including any conditions that might affect your driving. The exam typically costs between $75 and $150, depending on your location.

Once you pass the medical exam, the examiner will issue a medical certificate valid for two years (or one year if you have certain medical conditions). You must carry this certificate with you and present it when you take your skills test. Some states allow you to take the written test before the medical exam, but you cannot take the skills test without it.

Documents you'll need to bring

Gather these documents before you visit the DMV for any test:

  • Your current driver's license or state ID
  • Proof of residency (utility bill, lease, or mortgage statement dated within the last 60 days)
  • Social Security number or ITIN
  • Your DOT medical certificate (if required by your state)
  • Proof of citizenship or legal residency (passport, birth certificate, or immigration documents)

Some states also require a completed Commercial Driver's License process form, which you can read from the DMV website or fill out at the office. Call your local DMV ahead of time to confirm the exact list for your state, since requirements vary.

Preparing for the written and skills tests

Study the Class B manual for at least two to three weeks before taking the written test. Focus on sections about air brakes, vehicle control, and safety procedures — these topics appear frequently on the exam. Many states offer free practice tests online through their DMV website; use these to identify weak areas and study those sections more carefully.

For the skills test, practice driving the actual vehicle type you'll be tested in if possible. If you're getting a Class B to drive a box truck for work, ask your employer if you can practice in their truck before your test. Familiarity with the vehicle's size, braking response, and turning radius makes a real difference. If you can't access the vehicle beforehand, consider hiring a professional CDL instructor for a few lessons.

On test day, arrive early, bring all required documents, and get a good night's sleep. The examiner is looking for safe, confident operation — not perfection. Common reasons people fail the skills test include improper mirror checks, unsafe lane changes, and poor backing technique. Practice these specific tasks repeatedly before your test date.

Timeline and costs

The entire process typically takes four to twelve weeks from start to finish, though this depends on how quickly you schedule tests and how many attempts you need. The written test can usually be scheduled within a week or two. The skills test often has a longer wait — sometimes four to eight weeks depending on your state's DMV workload.

Costs vary by state but generally include:

  • Written test fee: $10 to $50
  • Skills test fee: $50 to $200
  • DOT medical exam: $75 to $150
  • License issuance fee: $20 to $100
  • Optional CDL instruction: $300 to $1,000 for a full course

If you fail either test, you'll pay the test fee again to retake it. Most states allow you to retake a failed test within a certain timeframe (often 14 days), but you may need to wait longer if you fail multiple times.

What happens after you pass

Once you pass both the written and skills tests, the DMV will issue your Class B license. This license is valid for four to eight years depending on your state. You'll receive it by mail or in person at the DMV office.

Your Class B license will have restrictions or endorsements listed on it. For example, if you passed the test in an automatic transmission vehicle, your license may be restricted to automatics only. If you need to drive manual transmission vehicles, you must pass the skills test again in a manual truck.

Keep your medical certificate current if your state requires it. You'll need to renew it every one or two years by visiting a certified medical examiner. If your certificate expires, you cannot legally drive a Class B vehicle, even if your license is still valid.

Frequently Asked Questions

Can I get a Class B license if I have a DUI or traffic violations on my record?

Most states do not automatically disqualify you for a DUI or traffic violation, but some violations may delay your process or require additional review. Contact your state's DMV directly to ask about your specific situation. They can tell you whether your record affects your ability to obtain a Class B license.

Do I need to take a CDL training course, or can I study on my own?

You can study on your own using your state's manual and practice tests — a formal course is not required. However, many people find that professional instruction improves their chances of passing the skills test on the first attempt, especially the backing and parking portions. A course typically costs $300 to $1,000 and takes one to four weeks.

What's the difference between a Class B and a Class A license?

A Class A license covers vehicles weighing more than 26,001 pounds, including tractor-trailers and large combination vehicles. Class A requires additional testing and training beyond Class B. If you only need to drive vehicles under 26,001 pounds, a Class B is sufficient and requires less extensive testing.

Can I use my Class B license to drive for rideshare or delivery services?

It depends on the vehicle and your state's rules. If you're driving a personal vehicle for rideshare, you need only a regular passenger license. If the delivery or rideshare company requires you to drive a larger vehicle (like a box truck), you'll need a Class B. Check with the company and your state's DMV about the specific vehicle you'll be operating.

What happens if my medical certificate expires before my license expires?

If your state requires a medical certificate for Class B driving, you cannot legally operate a Class B vehicle once the certificate expires. You must renew it by visiting a certified medical examiner before it lapses. Some states allow you to renew it up to 30 days before expiration, so plan ahead and schedule your appointment early.