The six main license classes and what you can drive with each

Your driver's license class determines what vehicles you are legally allowed to operate. The class printed on your license — usually Class D, C, B, or A — corresponds to the vehicle's weight and how many passengers it carries. Most people hold a Class D (or equivalent in their state), which covers standard cars, SUVs, and light trucks. Heavier vehicles, commercial trucks, and buses require higher classes and additional training or testing.

The specific class names and rules vary slightly by state, but the federal framework is consistent. A Class D license covers non-commercial vehicles under a certain weight threshold — typically 26,001 pounds or less. A Class C covers medium-duty vehicles. A Class B covers heavy single-unit trucks. A Class A covers tractor-trailers and the heaviest combinations. Some states use numbers (Class 1, 2, 3) instead of letters, but the vehicle categories remain the same.

Motorcycle licenses are separate and appear as an endorsement (usually "M") added to your regular license, not as a different class. You must pass a motorcycle-specific test to earn this endorsement, even if you already hold a car license.

Key Takeaways

  • Class D is the standard license for cars, SUVs, and light trucks under 26,001 pounds and covers most drivers.
  • Class C, B, and A licenses are for progressively heavier commercial vehicles and require additional written tests, skills tests, and sometimes medical certification.
  • A Commercial Driver's License (CDL) — Class A or B — requires passing the CDL written exam and a road test in the actual vehicle you will drive.
  • Motorcycle endorsements are earned separately through a written test and riding skills test, regardless of your car license class.
  • Some states allow you to upgrade your license class at the DMV without retesting if you meet age and experience requirements, while others require a full exam.

Class D: The standard non-commercial license

A Class D license (called Class 5 in some states, or straightforward a "regular" license) is what most drivers hold. It permits you to operate any non-commercial vehicle that weighs 26,001 pounds or less — which includes nearly all cars, sedans, SUVs, minivans, and pickup trucks you see on the road. You do not need any special endorsement or commercial designation to drive these vehicles for personal use.

To obtain a Class D license, you must pass a written knowledge test covering traffic laws and road signs, pass a vision test, and pass a practical driving test. The age at which you can test varies by state — most allow you to test at 16 or 17 for a learner's permit first, then graduate to a full license after holding the permit for a set period and completing additional hours of supervised driving.

If you already hold a Class D license and want to drive a heavier vehicle for work, you will need to upgrade to a higher class, which requires additional testing and often a medical examination.

Class C: Medium-duty vehicles and light commercial use

A Class C license covers medium-duty vehicles — typically those weighing between 10,001 and 26,000 pounds — and is used by drivers of small delivery trucks, some box trucks, and certain commercial vehicles that do not meet the threshold for a full Commercial Driver's License. The exact weight range varies by state, so check your state's DMV website for the precise definition.

To obtain a Class C license, you must already hold a valid Class D license and pass an additional written test specific to the vehicle class. Some states require a skills test as well. You do not typically need a medical certificate for Class C, though some states may require one depending on the vehicle type.

Class C is less common than Class D or Class A because many medium-duty vehicles fall into a gray zone — some can be driven on a Class D license, while others require a CDL. Your employer or the vehicle manufacturer's documentation will specify which class is required.

Class B and Class A: Commercial Driver's License (CDL) categories

A Class B license covers heavy single-unit trucks — typically those weighing more than 26,001 pounds — such as dump trucks, cement mixers, and large box trucks. A Class A license covers tractor-trailers and any combination of vehicles where the trailer weighs more than 10,000 pounds. Both Class A and Class B are types of Commercial Driver's Licenses (CDLs) and require the same rigorous testing process.

To obtain a CDL, you must be at least 18 years old (21 in most states for interstate driving), hold a valid Class D license, and pass a medical examination by a certified medical examiner. The exam checks your vision, hearing, blood pressure, and ability to safely operate a commercial vehicle. You must then pass a written CDL knowledge test covering vehicle inspection, safe driving practices, and hazardous materials (if you plan to transport them).

After passing the written test, you must pass a practical skills test in the actual vehicle you will drive. This includes a pre-trip inspection, a basic vehicle control test, and a road test. The entire CDL process typically takes several weeks and costs between $100 and $300 in testing fees, depending on your state.

Once you hold a CDL, you may also add endorsements — such as "H" for hazardous materials or "P" for passenger vehicles — by passing additional written tests. These endorsements expand what you are permitted to transport or carry.

Motorcycle endorsements: A separate qualification

A motorcycle endorsement (usually marked "M" on your license) is not a separate license class but an addition to your existing Class D license. It means you are legally permitted to operate a motorcycle or moped on public roads. You cannot ride a motorcycle on a Class D license alone, even if you are an experienced car driver.

To earn a motorcycle endorsement, you must pass a written test covering motorcycle-specific rules, hazards, and operation. Many states also require a practical riding skills test, either through the state DMV or through an approved motorcycle safety course. Some states waive the riding test if you complete an accredited motorcycle safety course, such as one offered by the Motorcycle Safety Foundation.

The cost of a motorcycle endorsement is typically $10 to $50 for the written test, plus the cost of any riding test or safety course. The entire process usually takes one to three weeks.

How to upgrade your license class

If you currently hold a Class D license and need to drive a heavier vehicle for work, you will need to upgrade to Class C, B, or A. The process begins at your state's DMV. You will need to bring your current license, proof of residency, and proof of insurance (if required by your state).

For a Class C upgrade, you typically take a written test and may need a skills test. For a Class B or A upgrade (CDL), you must pass a medical examination, a written CDL knowledge test, and a practical skills test in the vehicle you will drive. Some states allow you to take the written test at a DMV office, but the skills test must be conducted by a certified examiner at a testing facility.

A few states allow you to upgrade without retesting if you meet certain age and experience requirements — for example, if you are over 25 and have held a Class D license for five years. However, most states require at least the written test, and many require the full exam. Check your state's DMV website for the specific rules in your area.

Restricted licenses and provisional classes

Some states issue restricted licenses or provisional licenses to young drivers or those with certain medical conditions. A restricted Class D license might limit you to daytime driving only, prohibit driving with passengers under a certain age, or require an ignition interlock device if you have a prior DUI conviction.

A provisional license is typically issued to drivers under 18 and comes with restrictions that lift once you reach a certain age or complete a probationary period. These restrictions do not change the vehicle class you can drive — a provisional Class D still covers cars and light trucks — but they do limit when and how you can drive.

If you hold a restricted or provisional license and need to upgrade to a commercial class, you must first obtain an unrestricted Class D license. Some states allow this automatically at a certain age; others require you to retest or explore for the unrestricted version.

Frequently Asked Questions

Can I drive a pickup truck with a Class D license?

Yes, as long as the truck weighs 26,001 pounds or less. Most standard pickup trucks fall under this weight limit. If you are unsure about a specific truck, check the vehicle's gross vehicle weight rating (GVWR) on the driver's door jamb or in the owner's manual. If it exceeds 26,001 pounds, you need a Class C or higher.

Do I need a CDL to drive a box truck for my job?

It depends on the truck's weight. If it weighs 26,001 pounds or less, you can drive it on a Class D license. If it weighs more, you need a Class B CDL. Your employer should tell you the vehicle's GVWR, or you can find it on the truck itself. Some employers provide CDL training as part of hiring.

How long does it take to get a CDL?

The written test and medical exam can be completed in one to two weeks. The practical skills test is scheduled separately and may take another one to three weeks depending on testing facility availability. The entire process typically takes four to eight weeks from start to finish.

Can I add a motorcycle endorsement to a CDL?

Yes. You can hold a CDL and a motorcycle endorsement at the same time. You must pass the motorcycle written test and (in most states) a riding skills test. The endorsement is added to your existing CDL and does not require you to retake any CDL tests.

What happens if I drive a vehicle that requires a higher license class than I have?

You can be cited for driving without the proper license class, which is a traffic violation. The penalty varies by state but typically includes a fine and possible license suspension. If you are involved in an accident while driving an improperly licensed vehicle, your insurance may deny your claim.