What Is a Serious Offense for CDL Drivers?

If you hold a CDL, the words 'serious traffic violation' carry a specific federal meaning. They are not just any ticket — they are a defined list of offenses that can lead to losing your commercial license. Understanding that list is the first step to protecting your career.

The federal serious-violation list

Federal regulations identify a core set of serious traffic violations for CDL holders. They include:

• Excessive speeding — 15 mph or more over the posted limit
• Reckless driving
• Improper or erratic lane changes
• Following too closely
• Traffic offenses connected with a fatal accident
• Driving a commercial vehicle without the proper CDL
• Driving without your CDL in your possession
• Driving without the proper class of license or endorsement
• Texting while driving a CMV
• Using a hand-held mobile phone while driving a CMV

Why the label matters

Two serious violations within a three-year period can disqualify your CDL for at least 60 days. Three within three years can mean 120 days or more. These periods stack on top of any fines or points from the underlying ticket — and a disqualification means you cannot legally work as a commercial driver.

What you should do

Do not just pay a serious-violation ticket. Paying it is a guilty plea that locks in the conviction. Because CDL holders generally cannot 'mask' convictions through diversion programs, your best move is to fight the citation or negotiate it down to a non-serious offense before it becomes final.

This article is general information, not legal advice. CDL rules combine federal and state law, and outcomes depend on the specific facts of your case. Talk to a licensed attorney about your citation.