A Class B restriction limits what you can legally drive
A Class B restriction on your driver's license means you are not permitted to drive certain types of vehicles. The exact vehicles depend on your state and the reason the restriction was imposed, but the most common Class B restriction prohibits you from driving vehicles with air brakes or vehicles over a certain weight — typically those that would otherwise require a commercial driver's license (CDL).
If you have a Class B restriction and you drive a vehicle you are not permitted to operate, you can be cited for a traffic violation. The citation may result in fines, points on your driving record, or both. In some states, driving in violation of a restriction can also be treated as driving without a valid license.
Class B restrictions are different from other license restrictions because they are about vehicle type, not about how you drive. A restriction that says "corrective lenses required" limits how you drive. A Class B restriction limits what you drive.
Key Takeaways
- A Class B restriction prevents you from driving vehicles with air brakes or vehicles over a certain gross vehicle weight rating (GVWR), which varies by state.
- The restriction is usually imposed when you fail the air brake portion of a commercial driver's license test or when you take the CDL test in a vehicle without air brakes.
- Driving a restricted vehicle type is a traffic violation that can result in fines, points, and in some states, a citation for driving without a valid license.
- You can remove a Class B restriction by retesting in a vehicle with air brakes or by meeting your state's specific requirements for restriction removal.
Why Class B restrictions are issued
Most Class B restrictions come from the commercial driver's license testing process. When you take the CDL skills test, you must take it in a vehicle that matches the class of license you are seeking. If you take the test in a vehicle without air brakes — such as a straight truck with hydraulic brakes — you will pass the test but receive a Class B restriction on your CDL. That restriction means you cannot legally operate any vehicle with air brakes, even if you later own or have access to one.
Some states also issue Class B restrictions to regular (non-commercial) drivers in specific situations. For example, a few states impose a Class B restriction if you fail the air brake component of a standard driver's license test, though this is less common than the CDL scenario.
The restriction exists because air brake systems work differently from hydraulic brakes. They require different knowledge and handling. A driver who has not demonstrated competency with air brakes should not operate a vehicle that uses them.
What vehicles you cannot drive with a Class B restriction
The vehicles prohibited under a Class B restriction depend on your state's definition, but generally include:
- Any vehicle with an air brake system
- Vehicles with a gross vehicle weight rating (GVWR) above a certain threshold — often 26,001 pounds or higher
- Certain combinations of vehicles, such as a tractor pulling a trailer, if the combination exceeds the weight limit
Your driver's license document itself will show the restriction code. In most states, the code is printed on the back of the card or in a restrictions section. If you are unsure what your restriction means, contact your state's Department of Motor Vehicles (DMV) or equivalent agency. They can tell you exactly which vehicles are off-limits under your specific restriction code.
If you drive a vehicle you are not permitted to operate, you are breaking the law even if you are an otherwise safe and competent driver. The violation is strict — intent does not matter. Renting a truck, borrowing a friend's vehicle, or driving a company vehicle that falls under the restriction all count as violations.
How a Class B restriction affects your insurance
A Class B restriction itself does not automatically change your auto insurance rates or coverage. However, if you drive a vehicle you are not permitted to operate under the restriction and you are cited, the violation will appear on your driving record. That violation can increase your insurance premiums because it shows you broke traffic law.
If you are involved in an accident while driving a vehicle you are restricted from operating, your insurance company may deny your claim. The policy typically covers you only when you are driving legally. Violating a license restriction means you were not driving legally, which gives the insurer grounds to refuse payment.
If you need to drive a vehicle that falls under a Class B restriction for work or personal reasons, the solution is to remove the restriction, not to hope your insurance will cover you if something goes wrong. Removing the restriction is usually straightforward and takes far less time than dealing with a denied claim or a traffic citation.
How to remove a Class B restriction
To remove a Class B restriction, you must retake and pass the skills test in a vehicle that has the feature you were restricted from — usually an air brake system. The process varies slightly by state, but the general steps are:
- Contact your state's DMV to confirm the exact requirements for removing your Class B restriction.
- Schedule a CDL skills test (or the equivalent test your state uses) in a vehicle with air brakes.
- Pass the air brake component of the test.
- Pay any required fee — usually between $50 and $150, though this varies by state.
- Receive an updated license document without the Class B restriction.
You do not have to wait any specific amount of time to retake the test. You can schedule it as soon as you are ready. Some people schedule it within days of receiving their restricted license; others wait until they actually need to drive a restricted vehicle.
If you are unsure whether you can access a vehicle with air brakes for the test, ask the DMV. Some testing facilities have vehicles available for rent or use during the test. Others require you to bring your own vehicle. Knowing this before you schedule will save you a trip.
Class B restrictions and commercial driving
If you hold a commercial driver's license with a Class B restriction, you can still drive most commercial vehicles — just not those with air brakes. Many small trucking operations, delivery services, and construction companies use vehicles with hydraulic brakes, so a Class B restriction does not necessarily prevent you from working in those fields.
However, if your job requires you to drive air brake vehicles, you will need to remove the restriction before you can legally take that job. Some employers will not hire you with a Class B restriction if the position involves air brake vehicles, even if you could remove it quickly. If you are job hunting and a Class B restriction might be a barrier, removing it before you explore can make you a stronger candidate.
If you already have a job that requires air brake driving and you have a Class B restriction, talk to your employer about the timeline for removing it. Many employers will give you a reasonable window to get the restriction lifted, especially if you are otherwise a may have access to driver.
Frequently Asked Questions
Can I drive a rental truck if I have a Class B restriction?
Only if the rental truck does not have air brakes and does not exceed your state's weight threshold for the restriction. Before you rent, tell the rental company about your restriction and ask them to confirm the vehicle's brake type and GVWR. If you are unsure, do not rent it — driving in violation of a restriction is a traffic violation.
Will a Class B restriction show up on a background check?
The restriction itself will not appear on most background checks, but if you were cited for violating the restriction, that citation will show up. A violation of a license restriction is a traffic offense and will be visible to employers, landlords, or others who run a driving record check.
How long does it take to remove a Class B restriction?
The removal process itself is quick — you take the test, pass it, and your updated license is issued. The timeline depends on how soon you can schedule the test and how your state issues updated licenses. In most states, you can have the restriction removed within one to four weeks if you schedule the test promptly.
What if I fail the air brake test when trying to remove the restriction?
You can retake the test. There is no waiting period between attempts in most states, though some require a short interval (usually a few days). Each attempt may have a fee. You can take the test as many times as needed until you pass.
Does a Class B restriction affect my regular (non-commercial) driving?
Only if the vehicle you are driving has air brakes or exceeds the weight threshold. If you drive a standard passenger car, SUV, or pickup truck with hydraulic brakes, the restriction does not explore. The restriction only limits specific vehicle types.