CDL Class A vs. Class B — What’s the Difference?

What Is a CDL?

A Commercial Driver’s License (CDL) is required in the United States to operate certain commercial motor vehicles (CMVs). A CDL helps ensure drivers are properly trained to operate larger vehicles safely and follow industry regulations.

At Custom Diesel Drivers Training (CDDT), we offer training for both CDL Class A and CDL Class B.

What Is a CDL Class A?

A CDL Class A generally allows you to operate combination vehicles (a vehicle towing a trailer).

Common examples include:

• Tractor-trailers (semi-trucks)

• Combination vehicles with trailers

• Long-haul or regional trucking setups

A Class A CDL is often a good fit for students who want more flexibility in the types of commercial driving jobs they can pursue.

What Is a CDL Class B?

A CDL Class B generally allows you to operate a single, straight vehicle (not towing a large trailer).

Common examples include:

• Straight trucks

• Box trucks

• Dump trucks

• Certain local commercial vehicles

A Class B CDL can be a great option for students who want to focus on local routes or specific types of commercial driving.

How Do You Choose the Right CDL?

The best option depends on your goals.

Ask yourself:

• Do I want more driving options long-term?

• Do I prefer local routes or the possibility of regional/OTR work?

• What type of vehicle do I see myself driving?

If you’re unsure, our team can help you compare both options and choose the right program.

Ready to Get Started?

Whether you’re working toward a Class A or Class B CDL, CDDT is here to help you take the next step.

👉 Request information at cddt.us Call or text 402-894-1400.