Maryland CDL DUI Lawyer
A DUI or DWI is devastating for a commercial driver. Even if the incident occurred in your personal vehicle, the Maryland MVA can suspend or disqualify your Commercial Driver’s License (CDL) — threatening your job, income, and future employability.
We defend CDL drivers in Montgomery County and Prince George’s County, focusing on evidence suppression, procedural errors, and strategic options to protect your career.
Why CDL DUI Cases Are More Serious
CDL holders face rules that are far harsher than the rules applied to regular drivers. Under Maryland law and federal FMCSA regulations:
- You can lose your CDL even for a first offense.
- The legal BAC limit for CDL holders is .04 while operating a commercial vehicle.
- DUI offenses in a personal vehicle still count against your CDL.
- Refusing a test can disqualify your CDL.
- A CDL DUI stays on your MVR and commercial background checks.
In CDL cases, saving your license often matters even more than fighting jail time — because your ability to work is on the line.
CDL DUI Penalties in Maryland
Penalties depend on whether you were driving a commercial vehicle or a personal vehicle at the time of the incident.
1. DUI in a Commercial Vehicle
- Immediate out-of-service order.
- 1-year CDL disqualification for a first offense.
- 3-year disqualification if transporting hazardous materials.
- Lifetime CDL revocation for second offenses (FMCSA guidelines).
2. DUI in a Personal Vehicle
Even if you weren’t driving commercially, you may face:
- 1-year CDL disqualification (first offense).
- Lifetime disqualification for repeat offenses.
- Separate MVA administrative action.
Many trucking companies will not keep a driver after a DUI conviction — making defense strategy critical.
Refusing the Breath Test Is Even More Dangerous for CDL Holders
Under Maryland’s Implied Consent laws, refusing a chemical test can automatically trigger:
- CDL disqualification
- Longer hard suspensions
- Mandatory ignition interlock (non-CDL driving only)
We examine whether the officer followed proper procedures under Maryland Transportation Article §16-205.1 and whether the refusal warning (DR-15) was given correctly.
For more on refusals, see Should I refuse the breath test?
How We Defend CDL DUI Cases
For CDL drivers, the defense must be aggressive and precise. We focus on weaknesses that can result in dismissal, suppression, or reduction:
- Challenging the traffic stop: Was there reasonable suspicion?
- Dashcam/bodycam analysis: Does the video contradict the officer’s narrative?
- Field Sobriety Test suppression: Did medical, balance, footwear, fatigue, or roadside conditions create false “clues”?
- Breath test challenges: Machine calibration, operator certification, observation period errors.
- Blood test defenses: Chain-of-custody, lab integrity, hospital contamination issues.
- DRE protocol review (for drug DUIs): Did the officer follow the 12-step DRE protocol?
A reduction to a non-alcohol/non-CDL-disqualifying offense can keep your driving career alive.
MVA Consequences for CDL Drivers
The Maryland MVA handles CDL consequences separately from the court. You may need to:
- Request an MVA hearing within strict time limits
- Prevent automatic disqualification
- Address out-of-state CDL considerations
- Navigate ignition interlock options for non-commercial driving
Learn more on our page for Maryland MVA Hearings.
Local CDL DUI Defense in Montgomery & Prince George’s Counties
We represent CDL drivers stopped or arrested in:
- Montgomery County: Rockville, Silver Spring, Bethesda, Gaithersburg, Germantown.
- Prince George’s County: Hyattsville, Greenbelt, Upper Marlboro, College Park, Bowie.
Local court experience matters. Each courthouse has specific attitudes toward DUI and CDL cases — and we prepare you accordingly.
Related DUI FAQs for CDL Drivers
CDL at Risk? Talk to a Maryland CDL DUI Lawyer Today.
A CDL DUI is a career-ending charge if handled incorrectly. The earlier we act, the more options we have to protect your commercial license.
- Call (240) 992-4733 for a free consultation.
- Or complete an online case evaluation now.
Your license, livelihood, and future are worth defending.