Michigan Commercial Driver DUI

By Jeffrey Randa

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News

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Published on Mar 28, 2025

A Michigan commercial driver DUI (technically called “Operating While Intoxicated,” or “OWI” for short) charge carries severe penalties that can jeopardize a truck driver’s career and freedom. Commercial driver’s license (CDL) holders face a lower blood alcohol content (BAC) threshold than other drivers.

A second offense results in career-ending penalties. Defending against a Michigan commercial driver DUI can involve challenging the traffic stop, disputing test accuracy, or negotiating for reduced penalties.

DUI Regulations for Commercial Drivers in Michigan

Michigan’s roads see high volumes of traffic from commercial truck drivers. Michigan has over 7.2 million licensed drivers, of whom 279,391 hold commercial (CDL) licenses. Due to the catastrophic damage that a commercial truck driver can cause, Michigan holds them to a higher standard when it comes to testing blood alcohol content (BAC) for signs of alcohol.

While the legal BAC limit for non-commercial drivers is 0.08%, CDL holders face DUI charges with a BAC of just 0.04%. Additionally, CDL drivers are subject to federal Department of Transportation (DOT) regulations, meaning a DUI will lead to penalties at both the state and federal levels.

Michigan law also enforces implied consent for CDL holders that requires them to submit to breath, blood, or urine testing if suspected of intoxicated driving. Refusing a test can result in an automatic one-year CDL suspension, even if no conviction occurs.

Consequences for a DUI Conviction for Commercial Drivers

A DUI conviction can lead to devastating consequences for a commercial truck driver’s career. A first-time offense will automatically result in a minimum 1-year CDL suspension, meaning the driver will be out of work for that period of time. Drivers who were found to be intoxicated while transporting hazardous materials face even longer suspension periods.

For a second offense, a CDL holder faces a lifetime disqualification from operating a commercial vehicle. In addition to their CDL being suspended, convicted offenders face penalties that can include hefty fines, potential jail time, and increased insurance rates.

Just about every company will be reluctant to hire someone with a DUI conviction, even when their license is reinstated. The risk and financial liability can be too high for employers. Around 40% of fatal crashes in Michigan involve a driver who is under the influence of drugs or alcohol. One way a professional truck driver can protect their career is by challenging a DUI charge early on with the help of an experienced and skilled DUI attorney.

This is where our firm comes in. We are genuine Michigan DUI lawyers.

Legal Distinctions Between Standard DUI and CDL DUI

As noted, CDL holders face federal oversight in addition to Michigan’s strict DUI laws. The Federal Motor Carrier Safety Administration (FMCSA) regulates commercial drivers nationwide, meaning a DUI charge can trigger penalties at both the state and federal levels.

A CDL holder with a BAC of just 0.04% faces an automatic one-year disqualification, even if the driver was operating a personal vehicle at the time. A second offense results in a lifetime CDL ban, with little chance of reinstatement.

Courts may take CDL DUI cases more seriously than standard DUI cases. Prosecutors often pursue harsher penalties, and judges are less likely to offer leniency because commercial drivers are held to a higher safety standard. The reasoning is clear: Operating large trucks or buses comes with greater responsibility, and any impairment, no matter how minor, can be seen as a public safety risk.

Unlike regular drivers, CDL holders must also contend with much more severe employment risks beyond the courtroom. Many trucking companies have zero-tolerance policies, meaning a single DUI charge, not even a conviction, can lead to immediate termination. Places like Stevens Transport or Ryder System, Inc. don’t give second chances.

Even if a driver avoids jail time, the damage to their career may be permanent.

FAQs

Protect Your CDL. Schedule a Michigan Commercial DUI Consultation Today

If you hold a CDL, a DUI charge can jeopardize your career, livelihood, and future employment opportunities. Michigan holds CDL holders to higher standards, and a conviction can result in license suspension (at both the state and federal level), job loss, and long-term consequences. Even a first offense can put your driving privileges at risk.

At Jeffrey Randa and Associates, we understand what’s at stake. With decades of experience in DUI defense, we fight to protect commercial drivers from harsh penalties and career-ending consequences. Contact our Greater Detroit office today to call for a consultation and learn how we can help protect your CDL and your future.