If you are just getting into commercial driving, Class A and Class B can sound more complicated than they really are.

The easiest way to think about it is this:

Class A is primarily the license for heavier combination vehicles.

Class B is primarily the license for heavy single vehicles.

That sounds simple, but the details matter—especially once trailers, vehicle ratings, endorsements and restrictions enter the picture.

Choosing the right license should start with one question:

What equipment do you actually plan to drive?

This guide breaks down the difference without burying you in regulatory language.

Class A vs Class B in Plain English

Class A CDL

Best thought of as

Heavy combination vehicles

Federal definition in plain English

A Class A CDL generally applies when the vehicle combination has a gross combination weight rating or gross combination weight of at least 26,001 pounds and the towed unit is rated or weighs more than 10,000 pounds.

Typical examples may include

  • tractor-trailer combinations
  • heavy truck and trailer combinations
  • some pickup and gooseneck hotshot combinations
  • other qualifying combination vehicles

The exact license requirement depends on the vehicle ratings and configuration.

Class B CDL

Best thought of as

Heavy single vehicles

Federal definition in plain English

A Class B CDL generally applies to a single vehicle rated or weighing at least 26,001 pounds, or that type of vehicle towing a unit that does not exceed 10,000 pounds.

Typical examples may include

  • large straight trucks
  • certain dump trucks
  • heavy box trucks
  • some large buses when the proper passenger endorsement is also held
  • other qualifying heavy single vehicles

Vehicle class and required endorsements must be evaluated separately.

What Can You Drive With a Class A CDL?

A Class A CDL is designed for drivers operating qualifying heavy combination vehicles.

This is the license most people associate with tractor-trailers, but tractor-trailers are not the only vehicles that can fall under Class A.

Depending on weight ratings and configuration, Class A can also apply to:

  • pickup trucks pulling heavy gooseneck trailers
  • equipment-hauling combinations
  • heavy truck and trailer combinations
  • some hotshot trucking setups
  • other combinations meeting the federal Class A definition

What Can You Drive With a Class B CDL?

Class B is built around heavy single vehicles rather than the heavier trailer combinations associated with Class A.

Common Class B vehicles may include:

  • straight trucks
  • large box trucks
  • certain dump trucks
  • concrete or construction vehicles
  • some large buses with the appropriate endorsements
  • other heavy single-unit commercial vehicles

A Class B vehicle may tow a trailer, but under the federal Class B definition the towed unit does not exceed the applicable 10,000-pound threshold.

Class A vs Class B CDL Comparison

Primary vehicle typeClass AHeavy combinationsClass BHeavy single vehicles
Overall weight thresholdClass AGenerally 26,001 pounds or more under the applicable federal definitionClass BGenerally 26,001 pounds or more under the applicable federal definition
TrailerClass ATowed unit exceeds 10,000 pounds under the applicable Class A definitionClass BTowed unit does not exceed 10,000 pounds under the applicable Class B definition
Theory ELDTClass ARequired for applicable first-time applicantsClass BRequired for applicable first-time applicants
Behind-the-wheel ELDTClass ARequired for applicable first-time applicantsClass BRequired for applicable first-time applicants
Can apply to hotshotClass AYes, depending on combination ratings and configurationClass BLess typical for heavy hotshot combinations; actual configuration determines the license required
Typical focusClass ACombination vehiclesClass BStraight/heavy single vehicles

Is Class A Better Than Class B?

Not automatically.

Class A generally provides broader commercial driving flexibility because it covers qualifying combination vehicles.

But broader does not always mean better for every driver.

If your career or business only requires Class B vehicles, Class B may be the more direct training path.

If you plan to pull heavy trailers, operate qualifying hotshot combinations, drive tractor-trailers elsewhere in your career, or want broader vehicle options, Class A may make more sense.

The right answer depends on where you are trying to go.

Do You Need a Class A CDL for Hotshot Trucking?

Not every hotshot setup requires a Class A CDL.

The license requirement depends on the actual vehicle combination and its weight ratings.

Many heavier pickup-and-gooseneck combinations fall into Class A territory because the overall combination meets the Class A weight threshold and the trailer exceeds 10,000 pounds.

Other configurations may not.

Do not choose your CDL class based only on the words “hotshot trucking.”

Choose it based on the equipment you are going to operate.

When Does Class B Make More Sense?

Class B may make more sense when the work you are pursuing centers on heavy single vehicles rather than heavy trailer combinations.

Examples can include:

  • straight-truck operations
  • certain construction vehicles
  • some delivery or vocational trucks
  • certain buses with the required endorsements
  • other heavy single-unit vehicles

For someone who knows they do not need Class A combination privileges, Class B can be a focused path.

The important thing is not chasing the biggest license.

It is getting the license that matches the work.

What Are the ELDT Requirements for Class A and Class B?

For applicable first-time Class A and Class B applicants, Entry-Level Driver Training includes:

  • theory instruction
  • behind-the-wheel range training
  • behind-the-wheel public-road training

The training must be provided by providers listed on the FMCSA Training Provider Registry for the applicable training type.

Theory and behind-the-wheel training may come from separate registered providers.

For a full explanation, read: What Is ELDT? Class A, Class B & Hazmat Requirements Explained

What If You Already Have a Class B CDL and Want Class A?

A Class B holder upgrading to Class A is generally subject to the applicable Class B-to-Class A ELDT upgrade requirements.

The upgrade path exists because the skills involved in operating qualifying combination vehicles go beyond the Class B vehicle group.

If you already hold Class B, your experience still matters.

But moving into Class A combination vehicles requires additional knowledge and hands-on skills, particularly around combination-vehicle operation.

Does Class A Training Also Cover Class B ELDT?

FMCSA states that a driver who successfully completes the required Class A ELDT is eligible to take either the Class A or Class B CDL skills test.

That does not mean every vehicle, endorsement, restriction or state licensing situation becomes interchangeable.

Always confirm the credential and equipment requirements for your specific situation.

What About Endorsements?

Your CDL class and your endorsements are two different things.

Having a Class A or Class B CDL does not automatically give you every commercial driving privilege.

Depending on the vehicle and job, you may also need endorsements such as:

  • Hazmat
  • Tank vehicle
  • Passenger
  • School bus
  • Double/triple trailers

Restrictions can also limit what equipment a CDL holder may legally operate.

That is why the letters on the front of the license are only part of the picture.

Which CDL Should You Choose?

Start With the Equipment

  1. Question 1

    Will you operate a qualifying heavy combination with a trailer over the applicable Class A threshold?

    Yes
    Start by researching Class A.
    No
    Continue.
  2. Question 2

    Will you operate a qualifying heavy single vehicle at or above the Class B threshold?

    Yes
    Class B may be the appropriate class.
    No
    Your situation may fall outside Class A or B, or may involve Class C or non-CDL requirements.

This is a simplified decision guide, not a substitute for checking the actual vehicle ratings and licensing requirements.

True North CDL Training Options

An Experienced Instructor’s Advice

Frequently Asked Questions

Official Sources

Official Sources

True North CDL uses federal sources when explaining CDL classes and ELDT requirements. Vehicle configuration, endorsements, restrictions and state rules can affect the license required, so verify your specific situation before making licensing decisions.

About Your Instructor

Bill Collins

Bill is a veteran, longtime Class A CDL holder, former owner of Interstate Truck Driving School, and commercial-driving instructor with decades of teaching experience.

Meet Bill Collins