A CDL Is a Federal License Held to Federal Rules
Your commercial driver’s license is issued by Wisconsin but governed by federal regulations under 49 CFR Part 383. That dual system is what makes CDL traffic violations so consequential. A ticket that is a minor forfeiture for a regular driver can be a career-ender for a CDL holder.
And critically, many CDL disqualifications apply to tickets issued in a personal vehicle, not just a commercial vehicle. That rule catches a lot of commercial drivers by surprise.
Wisconsin implements the federal CDL rules at Wis. Stat. § 343.055. Under 49 CFR § 383.51, Serious Traffic Violations carry a 60-day disqualification for a second offense and 120 days for a third within three years. Major Offenses (DUI, leaving the scene, felony involving a vehicle, driving while disqualified) carry one-year disqualifications for a first offense, three years if hazardous materials are involved, and lifetime disqualification for a second major offense.
What Counts as a Serious Traffic Violation
Under 49 CFR § 383.5, Serious Traffic Violations include:
- Excessive speeding, 15 mph or more over the posted limit.
- Reckless driving.
- Improper or erratic lane changes.
- Following too closely.
- Violations connected to a fatality in any vehicle.
- Driving a commercial motor vehicle without holding a CDL, without the CDL in possession, or without the proper class or endorsements.
- Using a handheld phone while driving a commercial vehicle.
- Texting while driving a commercial vehicle.
Two of these in a three-year period triggers a 60-day disqualification. Three triggers 120 days.
What Counts as a Major Offense
Under 49 CFR § 383.51(b), Major Offenses include:
- Operating a commercial motor vehicle with a BAC of 0.04 or higher (half the usual 0.08 limit).
- OWI in any vehicle under state law.
- Refusing a chemical test in connection with an OWI.
- Leaving the scene of an accident in any vehicle.
- Committing a felony involving the use of a vehicle.
- Driving a commercial vehicle while disqualified.
- Causing a fatality through negligent operation of a commercial vehicle.
A first conviction in any of these categories is a one-year disqualification (three years for HAZMAT drivers). A second is a lifetime disqualification, reinstatement-eligible only under narrow federal hardship provisions.
Why This Ties Back to OWI Defense
For CDL drivers, an OWI charge, even a first offense with a BAC below the civilian .08 threshold, carries a one-year career suspension in addition to whatever the state court does. Our OWI practice page is dui-owi-attorney and the OWI microsite is racineowi.com. The microsite has a dedicated CDL-OWI page that walks through the federal layer in depth.
If the underlying OWI is dismissed or reduced to a non-qualifying offense, the federal disqualification does not attach.
Defense Angles
- Civilian-track conversion. Reducing a Serious Traffic Violation to a non-qualifying violation (certain equipment violations, parking-equivalent forfeitures, or non-moving charges) removes the federal CDL consequence.
- Venue and charging review. Sometimes the State charges a § 346.62 reckless driving when § 346.57 speeding would fit the facts. Arguing charging merit can move the case to a non-serious category.
- Speed-measurement challenges. Radar, laser, and pacing methods each have defenses, calibration, training records, visual-obstruction, target verification. A 15-over speed ticket reduced to 10-over is a CDL-saving outcome.
- Underlying OWI attack. Probable cause for the stop, probable cause to arrest, implied-consent procedural defects, blood-draw challenges, and breath-instrument calibration records are all defensible in the OWI itself, which, if successful, removes the federal CDL consequence automatically.
- DOT master-driver-record cleanup. The Wisconsin DOT and FMCSA master driver record sometimes reflects dispositions inconsistent with the court judgment. We audit it.
What Changes for HAZMAT Drivers
HAZMAT-endorsed drivers face longer disqualifications and additional TSA security-threat-assessment consequences. A conviction that triggers a one-year disqualification for a standard CDL holder triggers a three-year disqualification for a HAZMAT holder under 49 CFR § 383.51(b)(2). Your first call after the ticket should be to defense counsel, not to your employer.
Collateral Consequences
- Job loss, most trucking, school-bus, and delivery employers suspend or terminate on any CDL disqualification.
- Insurance surcharges are steeper for CDL holders than for standard drivers.
- DOT medical-card complications can follow a disqualification even after reinstatement.
- CSA (Compliance, Safety, Accountability) score impact for company-assigned drivers.
- Employer MVR review, many CDL employers run motor-vehicle reports quarterly.
Related Traffic Pages
- Reckless driving.
- Failure to yield.
- Running a red light or stop sign.
- Driving on suspended license.
- Speeding.
- Main traffic violations hub.
- Traffic-defense microsite: racineticket.com.
- OWI-CDL microsite page: racineowi.com/cdl-owi/.
Call the Same Day the Ticket Is Issued
For a CDL, the federal reporting clock starts when the ticket is disposed of, not when it is issued. The window to get counsel involved and negotiate a non-disqualifying disposition is short. Call or text Cafferty & Scheidegger at (262) 632-5000. Free, confidential consultation.
