Possible Reasons for CDL Disqualifications

Earning your CDL is the first step toward an exciting career as a truck driver. Operating a truck is an enormous responsibility, and drivers are held to a high standard. As such, there are a number of reasons that your CDL could be disqualified, either temporarily or permanently. Avoid these scenarios to protect your career as a truck driver.


In Arizona, there is zero tolerance for operating a truck under the influence of alcohol. Operating a truck is consent for a blood alcohol concentration, or BAC, test, and if your BAC is .04% or higher, you could lose your CDL for one year for a first offense or for life for your second offense. You will also lose your license if you refuse an alcohol test. You can also lose your CDL is you are involved in a DUI in your personal vehicle. If your personal license is disqualified, your CDL will be as well.

Leaving the Scene of an Accident

Accidents involving semi trucks are often serious. If you leave the scene, even if the accident was not your fault, your license may be suspended for a year. After a second incident, you can lose your CDL for life. If an accident is determined to be your fault, your license may also be disqualified. You can lose your license for a year if a fatality occurred in the accident and for 60 to 120 days if you committed a serious traffic violation, such as changing lanes erratically or speeding.

Failing to Submit to Medical Testing

To keep roads safe, the Department of Transportation requires periodic medical certifications. If you don’t undergo medical testing that is required and provide documentation of your test results, your license can be disqualified. It may also be disqualified if you fail to meet to medical standards set by the DOT.

Let Yuma Truck Driving School equip you with the skills you need to start your career as a truck driver. Learn more about our CDL training, job placement assistance, and paid externships by calling (888) 647-3239.