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How does a DUI arrest affect your commercial driver’s license?

On Behalf of | Jan 27, 2026 | CRIMINAL LAW - Drunk Driving

A DUI arrest can have severe consequences for anyone holding a commercial driver’s license (CDL). If you’re arrested for driving under the influence while driving a commercial vehicle in Tennessee, the penalties may be more severe than those for non-commercial drivers. Understanding the specific effects a DUI arrest has on a CDL can help drivers take the necessary steps to protect their livelihood.

DUI arrest and commercial driver’s license suspension

According to state law, a DUI arrest can lead to the suspension of your commercial driver’s license, especially if the arrest involves operating a commercial vehicle with a blood alcohol concentration (BAC) of 0.04% or higher. This is half the legal limit for non-commercial drivers (0.08%). A conviction for a DUI can result in a mandatory CDL suspension, which could last for one year or more, depending on the severity of the offense.

Impact on driving record and future employment

A DUI conviction not only affects your driving privileges but also leaves a mark on your driving record. This can make it more difficult to secure future employment as a commercial driver. Employers may be hesitant to hire someone with a DUI on their record, especially if the conviction involves a commercial vehicle.

Offenses involving drugs or alcohol

If a driver is found under the influence of drugs or alcohol, it can lead to even more severe consequences. In addition to losing your CDL, a driver may face additional penalties, including fines, vehicle impoundment, and even jail time in some cases.

Rebuilding your driving career

After a DUI arrest, it’s important to understand the steps required to regain your CDL, such as attending a court hearing, completing any required classes, or serving a suspension period. Taking these steps can help restore your ability to drive commercially.