What Is a Class B License? (Requirements and How To Earn It)

A Class B commercial driver's license, or CDL, allows a driver to operate certain large single vehicles for commercial purposes. It can lead to work in local delivery, transit, construction, waste collection and other industries that rely on heavy vehicles.

Commercial licensing is regulated through federal standards and state licensing agencies. The exact forms, fees, testing procedures and eligibility rules can vary by state, so applicants should use this article as a general overview and confirm current requirements with their state driver's licensing agency.

What is a Class B license?

Under the Federal Motor Carrier Safety Administration's CDL classifications, a Class B CDL covers any single vehicle with a gross vehicle weight rating or gross vehicle weight of at least 26,001 pounds, whichever is greater. It also permits that qualifying single vehicle to tow another vehicle whose gross vehicle weight rating or gross vehicle weight does not exceed 10,000 pounds, whichever is greater.

The phrase “single vehicle” is central to the classification. A large straight truck may qualify for Class B because the cab and cargo body form one vehicle. A tractor pulling a heavy trailer generally requires Class A privileges because it is a combination vehicle and the towed unit exceeds the Class B limit.

A driver's actual authority also depends on endorsements and restrictions shown on the license. For example, operating a passenger bus may require a passenger endorsement, and driving a school bus typically requires both passenger and school bus endorsements. The vehicle used for the skills test can also affect restrictions concerning air brakes, manual transmissions or other equipment.

Vehicles you may drive with a Class B CDL

Depending on the vehicle's specifications and the endorsements held, a Class B driver may operate:

• Straight trucks and large box trucks

• Dump trucks

• Concrete mixer trucks

• Refuse and recycling trucks

• Large delivery vehicles

• Segmented buses

• City or intercity buses with the required passenger endorsement

• School buses with the required passenger and school bus endorsements

• Certain tank vehicles with the required tank endorsement

Vehicle appearance or job title alone does not determine the CDL class. Check the manufacturer's weight rating, the vehicle's actual weight where applicable, its configuration and any cargo- or passenger-specific rules. A smaller version of a vehicle may not require a CDL, while a heavier or differently configured version may.

Class A vs. Class B vs. Class C licenses

The three CDL classes reflect the type and weight of vehicle a person is authorized to operate.

Class A CDL

A Class A CDL generally covers a combination of vehicles with a gross combination weight rating or gross combination weight of at least 26,001 pounds, whichever is greater, when the towed vehicle has a gross vehicle weight rating or gross vehicle weight above 10,000 pounds, whichever is greater. Tractor-trailers are a common example.

With the appropriate endorsements and without relevant restrictions, Class A authority may encompass vehicles in Classes B and C. It typically offers the widest range of commercial driving options but requires training and testing in a qualifying combination vehicle.

Class B CDL

A Class B CDL focuses on heavy single vehicles and allows a qualifying vehicle to tow only within the Class B limit. It is well suited to many local and regional roles in which the driver operates a straight truck or bus rather than a tractor-trailer.

Class C CDL

A Class C CDL applies to certain vehicles that do not meet the Class A or B weight definitions but are designed to transport a regulated number of passengers, including the driver, or are used to transport hazardous materials in quantities requiring placarding. Applicable endorsements are required.

Because state terminology and noncommercial license classes can differ, an applicant should verify that a training program refers specifically to a Class B commercial driver's license.

Common Class B endorsements

An endorsement grants authority for a special vehicle or type of operation after the driver satisfies added requirements. Common endorsements associated with Class B work include:

• P—Passenger: For vehicles designed to transport passengers at a regulated capacity. Applicants must meet testing requirements, including a skills test in a representative passenger vehicle.

• S—School bus: For operating a school bus. Federal standards require the passenger endorsement as well as the school bus endorsement, and states may impose background checks or additional conditions.

• N—Tank vehicle: For operating a commercial vehicle designed to transport liquid or gaseous material in qualifying tanks.

• H—Hazardous materials: For transporting hazardous materials that require placarding. This endorsement involves a knowledge test and Transportation Security Administration security threat assessment, among other requirements.

• X—Tank and hazardous materials: A combined endorsement for qualifying tank vehicles carrying hazardous materials.

Applicants should pursue only the endorsements relevant to their intended work. Each may involve additional study, testing, fees and renewal obligations.

General requirements for earning a Class B CDL

Requirements depend on the state, the kind of commerce and the endorsements requested. In general, an applicant may need to:

• Hold a valid noncommercial driver's license

• Meet the state's minimum age and residency requirements

• Provide identity, lawful-status, Social Security number and residency documents

• Supply driving-history information required by the licensing agency

• Self-certify the type of commercial operation they expect to perform

• Meet applicable medical qualification requirements

• Pass required knowledge tests to obtain a commercial learner's permit

• Complete entry-level driver training when federal rules require it

• Hold the learner's permit for the required period

• Pass the vehicle inspection, basic controls and road portions of the CDL skills test

• Pay application, permit, testing and licensing fees

Federal rules generally require drivers to be at least 21 to operate a commercial motor vehicle in interstate commerce, subject to limited federal programs and other exceptions. Some states issue intrastate commercial privileges to eligible drivers who are 18 to 20. Age can also affect passenger or hazardous-material authority. Applicants should check both their state rules and the requirements of prospective employers.

Medical and self-certification requirements

CDL applicants and holders must tell their state licensing agency which type of commercial operation they perform or expect to perform. The categories distinguish interstate from intrastate commerce and excepted from non-excepted activity.

Drivers in non-excepted interstate commerce generally must meet federal physical qualification standards. A certified medical examiner records the examination, and current procedures govern how medical certification information reaches the state licensing agency. Intrastate and excepted operations may follow different rules.

Medical requirements can change and individual circumstances vary. An applicant with questions about vision, hearing, medication use or another condition should consult the official state agency and an examiner listed on the National Registry of Certified Medical Examiners rather than assuming they are eligible or ineligible.

How to earn a Class B license

The following steps describe the general U.S. process. The order may vary, and states may add requirements.

1. Review your state's CDL manual and eligibility rules

Start with the official CDL manual from the state that will issue your license. Review age, document, residency and medical requirements, as well as the fees and appointment process. Identify the vehicle and endorsements required for the job you want.

This early research can prevent a mismatch between training and career goals. For example, a student planning to drive a transit bus needs passenger-vehicle instruction and testing, while someone planning to drive a tanker may need a tank endorsement.

2. Complete self-certification and medical steps

Declare the category of commercial operation you expect to perform and submit medical information if required. Keep copies of relevant documents and track expiration dates. Failure to maintain required medical status can lead to loss or downgrade of commercial driving privileges.

3. Prepare for the knowledge tests

Study the official state manual rather than relying only on third-party practice questions. The general knowledge test typically covers safe vehicle operation, inspections, driving techniques and emergency procedures. Additional knowledge tests may apply to air brakes or endorsements.

Develop a study schedule, review weak topics and learn why each answer is correct. Commercial driving requires applying the rules in real situations, not merely memorizing an answer bank.

4. Apply for a commercial learner's permit

After meeting the documentation and testing requirements, apply for a Class B commercial learner's permit, commonly called a CLP. A CLP allows supervised practice in the appropriate commercial vehicle under specific conditions. The supervising CDL holder must have the proper class and endorsements and occupy the required position in the vehicle.

Follow all permit restrictions. A learner with passenger or school bus privileges may face special rules about carrying passengers during practice.

5. Complete required entry-level driver training

Federal Entry-Level Driver Training rules apply to drivers seeking a Class A or Class B CDL for the first time, upgrading from Class B to Class A, or obtaining certain endorsements for the first time. When the rule applies, training must come from a provider listed on FMCSA's Training Provider Registry.

Class B applicants complete the applicable theory and behind-the-wheel curriculum. The federal rule establishes curriculum and proficiency standards rather than a universal minimum number of training hours. The provider reports successful completion, which the state verifies before allowing the relevant skills test.

Confirm that the school's vehicles match the class, braking system and transmission you intend to use professionally.

6. Practice with qualified supervision

Use the permit period to develop safe, repeatable habits. Practice pre-trip or vehicle inspection procedures, straight-line backing, offset backing, turns, lane control, railroad crossings, traffic observation and other maneuvers in the state manual.

Federal standards generally require a person to hold the CLP for at least 14 days before taking the CDL skills test. A state may impose additional timing or appointment rules. Practice in the type of vehicle you plan to use for the test, because testing in a vehicle without certain equipment can place restrictions on the resulting CDL.

7. Pass all three parts of the CDL skills test

The CDL skills test generally includes three parts:

1. Vehicle inspection test: Demonstrate that you can inspect important components and explain what you are checking.

2. Basic controls test: Perform specified low-speed maneuvers in a controlled area.

3. Road test: Operate the commercial vehicle safely in traffic while an examiner evaluates your decisions and control.

The vehicle must represent the class and type of license sought and meet registration, insurance and safety requirements. Many states require appointments, and retest waiting periods or added fees may apply after an unsuccessful attempt.

8. Receive and maintain the CDL

After passing, complete the state agency's issuance process and confirm that the CDL lists the correct class, endorsements and restrictions. Employers may also require orientation, a road evaluation, drug and alcohol testing, background screening or experience beyond the legal licensing minimum.

Maintain the license by renewing it on time, keeping medical status current when applicable and reporting required changes. Follow hours-of-service, inspection, substance-testing and other safety rules relevant to the job. Certain serious traffic violations can disqualify a driver from operating commercial vehicles.

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

The timeline varies with permit preparation, training format, appointment availability and previous experience. A full-time program may move faster than weekend instruction, but the CLP holding period and state scheduling still apply. Compare schools by supervised driving time and vehicle access as well as advertised duration.

How much does a Class B CDL cost?

Costs vary by state and training provider. Possible expenses include:

• Medical examination

• Permit and licensing fees

• Knowledge and skills test fees

• Driver-training tuition

• Vehicle rental for the test

• Endorsement tests and background checks

• Retesting or rescheduling fees

Employers, workforce programs, community colleges or veterans' education benefits may help cover training. Review any repayment or work-commitment terms before accepting assistance.

Jobs that may require a Class B CDL

Common paths include bus driver, local delivery driver, dump truck driver, refuse truck driver, concrete mixer driver and utility vehicle operator. Duties often extend beyond driving to loading, inspections, records, customer contact or passenger assistance.

Before applying, compare the job posting with the license. Look for required endorsements, air-brake qualifications, physical duties, schedule, route type and experience. Employers may require a clean driving record and standards that exceed the licensing agency's minimum rules.

Tips for choosing a Class B training program

Confirm that a program appears on the Training Provider Registry when ELDT applies. Ask which endorsements it covers, how many students share a vehicle and whether the price includes testing or vehicle rental. A strong program should emphasize safe operation and job readiness, not merely memorization of a test route.

Dokie can help Class B CDL candidates present their transferable experience when applying for driving roles. Users can turn work in delivery, construction, customer service, logistics or equipment inspection into clear resume bullets that connect safety, reliability and operational results with the target job.

Dokie can also support tailored resumes, cover letters and interview preparation after a candidate confirms the facts of their license and endorsements. Applicants should state credentials precisely—for example, “Class B CDL with passenger endorsement”—and never imply that they hold an endorsement, medical qualification or driving privilege they have not earned.

Frequently asked questions

Can I drive a tractor-trailer with a Class B license?

Generally, no. A typical tractor-trailer combination requires a Class A CDL because the combination meets the weight threshold and the towed vehicle exceeds the Class B limit. Verify the ratings and configuration of the specific vehicle.

Can a Class B driver operate a bus?

A Class B CDL may cover a qualifying bus, but the driver also needs the appropriate passenger endorsement. A school bus generally requires both passenger and school bus endorsements, along with any state-specific qualifications.

Do I need entry-level driver training for a Class B CDL?

Federal ELDT requirements generally apply if you are obtaining a Class B CDL for the first time and your commercial learner's permit was issued on or after February 7, 2022, unless an exception applies. Training must be completed through a registered provider before the skills test.

How long must I hold a commercial learner's permit?

Federal standards generally require a CLP holder to wait at least 14 days before taking the CDL skills test. States may have additional requirements, and the permit has its own validity and renewal rules.

Does a Class B CDL automatically include air brakes?

No. If an applicant does not pass the air-brakes knowledge test or performs the skills test in a vehicle without a full air-brake system, the state may place an air-brake restriction on the CDL. Train and test in suitable equipment if a job requires air brakes.

Can I get a Class B CDL at age 18?

Some states allow qualified drivers ages 18 to 20 to obtain commercial privileges for intrastate operation. Interstate commercial driving generally requires age 21, subject to limited exceptions or federal programs. Check current state and federal rules for the intended operation.