Independent guide for commercial drivers
Facing a DUI with a CDL? Know what is at stake.
Plain English guides to CDL disqualification rules, BAC limits, the FMCSA Clearinghouse and getting back on the road.
CDL DUI laws
The federal rules every commercial driver should know.
CDL DUI Penalties: What Happens to Your Commercial License After a DUI
A DUI can take a commercial driver off the road for a year or for life. Here is how federal CDL disqualification rules work.
Read guide →0.04 vs 0.08: Commercial Driver BAC Limits Explained
Commercial drivers face a legal limit half that of most drivers, plus a rule against any detectable alcohol on duty.
Read guide →Can You Lose Your CDL for a DUI in Your Personal Vehicle?
Yes. A DUI in your own car counts against your commercial license under federal rules.
Read guide →Refusing a Breath Test as a CDL Holder: What Happens
Refusing a chemical test is treated as a major offense with the same CDL disqualification as a DUI conviction.
Read guide →Charged with a DUI and hold a CDL?
Administrative hearing deadlines can be as short as 10 days. Learn what to ask before you hire anyone.
Clearinghouse, testing and driver resources
Getting back to work and protecting your career.
The FMCSA Drug and Alcohol Clearinghouse: What CDL Drivers Need to Know
Violations in the Clearinghouse follow you from job to job and can now cost you your CDL itself.
Read guide →Getting Back on the Road: The CDL Return to Duty Process
After a drug or alcohol violation, here is the step by step path back to safety sensitive work.
Read guide →Do You Need a Lawyer for a CDL DUI? How to Choose One
Because a CDL DUI can end a career, specialized legal help is often worth it. Here is what to look for.
Read guide →Best Personal Breathalyzers for Truck Drivers
A personal breathalyzer is a smart extra check for drivers held to a 0.04 limit and the four hour rule.
Read guide →CommercialDUI.com is an independent information resource for commercial drivers. We are not a law firm and nothing on this site is legal advice. Laws change and vary by state, so confirm details with your state licensing agency or a licensed attorney.