How to Know: Does My Driver Need a CDL?
To avoid fines and penalties for improper licensing, it’s imperative to understand the nuances behind which of your drivers need a commercial driver’s license. Here is a cheat sheet.

The best way to tell if a vehicle requires a CDL is its weight. Generally, all Class A, B, and C vehicles traveling on the interstate requires the license.
Photo: Lê Minh from Pexels
In order to protect your company from hefty fines, it’s essential to understand whether or not your drivers need a commercial driver’s license (CDL).
There’s a common misconception that CDLs only apply to tractor-trailers or large buses. In reality, the rules and regulations for who needs a CDL are more nuanced than that. They extend to many utility departments, municipalities, and more.
The penalties for driving without proper licensing can be severe for both driver and company. Not only that, but putting someone behind the wheel without the proper certification or training is extremely dangerous.
This article will explain what types of vehicles require a CDL, along with some ways you can ensure your drivers prevent accidents while behind the wheel.
What is a CDL & What are the Requirements?
Commercial driver’s licenses were made law on April 1, 1992. Since then, drivers of certain vehicles are required to obtain and hold a CDL from their state in order to drive interstate, intrastate, or foreign commerce.
Whether or not a vehicle requires a CDL is most often determined by weight. However, CDL requirements can also include hazardous materials and passenger capacity.
If a vehicle falls into any of the following categories, a driver needs the corresponding CDL license to drive it:
Class A - Any combination of vehicles that has a gross combination weight rating (GVWR) or gross combination weight of 26,001 pounds or more, inclusive of towed unit(s) with a gross vehicle weight rating or gross vehicle weight of more than 10,000 pounds.
Class B - Any single vehicle which has a gross vehicle weight rating or gross vehicle weight of 26,001 pounds or more, or any such vehicle towing a vehicle with a gross vehicle weight rating or gross vehicle weight that does not exceed 10,000 pounds.
Class C - Any single vehicle, or combination of vehicles, that does not meet the definition of Class A or Class B, but is either designed to transport 16 or more passengers, including the driver, or is transporting material that has been designated as hazardous under 49 U.S.C. 5103 and is required to be placarded under subpart F of 49 CFR Part 172 or is transporting any quantity of a material listed as a select agent or toxin in 42 CFR Part 73.
In sum, any vehicle that falls under Class A, B, or C (and is driven interstate, intrastate, or carrying foreign commerce) requires a CDL.
To obtain a CDL, a driver must pass a knowledge and skills test implemented by their state or state provider of CDLs. The test is usually done in the type of vehicle they will be driving for work.
What Is the Purpose Behind Requiring a CDL?
Based on the three license class types, a commercial vehicle is either:
Extremely heavy
Carrying a large number of people
Carrying hazardous materials
Any three of those spell disaster if an accident were to happen. Collisions involving them are more likely to be severe or even fatal. Therefore, it makes sense to ask more of these drivers.
However, just because a driver has their CDL does not mean they’re a safe driver. The test focuses heavily on rules and regulations. While that’s important for CDL drivers, it does not prepare them for being safe, defensive drivers.
Compliance Does NOT Equal Safety
Whether you have CDL or non-CDL drivers getting behind the wheel for you, you need to train them on specific safe driving techniques.
Remember, compliance does not equal safety. Safety training is about changing someone’s behavior. If you want to reduce your accidents, you should:
Assign online self-directed training at point of hire
Conduct in-person safety training for new-hires
Host monthly safety meetings focused on loss-leading indicators
Disperse frequent safety messaging to drivers in form of posters, safety e-blasts, etc.
Getting your driver’s the proper licensing and staying compliant is only half the battle. Preventing accidents, reducing your cost of loss, and saving lives is a whole different game all together.
About the Author: John Kuder is a senior instructional designer at Avatar Fleet, the creators of the non-CDL safety training course, The Fleet Safety Course.
More Safety

Top 50 Executive Fleets
It is that time of year again! Time for the 2026 list of the Top 50 Executive Fleets, presented by Automotive Fleet and Volvo as part of its annual Fleet 500. Download now to see this year's list of companies!
Read More →How Better Visibility Cut Speeding Violations by 48%
Fleet leaders don't need more data, they need clearer visibility into what the data is saying. This case study explores how one utility replaced speeding-event counts with a single metric — miles driven in violation — to strengthen safety and significantly reduce speeding violations.
Read More →
Operation Safe Driver Week: Why the Industry's Oldest Safety Campaign Still Matters to Fleets
A look at how a 2007 enforcement initiative became one of the most consequential weeks on the fleet safety calendar, and what it means for your drivers in 2026.
Read More →
Nexar-Nauto Merger Aims to Give Fleets Better Safety Intelligence Through Larger Driving Dataset
Stefan Heck tells Automotive Fleet that combining more than 10 billion miles of driving history with Nexar's AI models will give fleets deeper insights into driver risk and roadway conditions than either company could provide independently.
Read More →From Silos to Solutions: Relationship Management for Safer Fleets
From telematics adoption and driver accountability to policy consistency and risk mitigation, this episode breaks down what it really takes to build a safer fleet culture without slowing business down.
Read More →
IIHS Launches First Commercial Vehicle Safety Evaluations
The Insurance Institute for Highway Safety has begun evaluating heavy-duty pickups and cargo vans for driver protection. Which models earned top marks?
Read More →
Reducing Risk by Eliminating Phone Use Behind the Wheel
Hosted with the cofounder of Lifesaver Mobile, this episode addresses phone use behind the wheel and how to design a driving environment that actually helps prevents accidents.
Read More →
Cameras, Safety and Insurance: From Reactive Claims to Real-Time Prevention (Part 2 of 2)
Part Two: Commercial auto remains one of the most challenging and costly lines of coverage for fleet operators and insurers alike. Continue learning more about how to effectively address these issues from Onur Aksan, Enterprise Business Development Executive, Geotab
Read More →
How 5-Second Telematics Data Is Changing Fleet Safety
This episode connects with Steve Santostasi of Ford Pro and covers how a few seconds of data can make a difference in fleet safety.
Read More →
The Two Biggest Summer Downtime Threats for Fleets
A conversation with a maintenance expert reveals the two most common summer maintenance pains and how to prevent them.
Read More →