Maryland DUI/DWI Interlock Providers

The following list represents the present interlock providers in Maryland. An interlock is a device that is installed on your car to confirm the lack of alcohol in your system when the car is started and while driving. The device requires a breath sample by the driver in order to start the car and again during the course of driving.

The device is basically an option following a DUI/DWI arrest in Maryland when a breath sample is provided reflecting a BAC (breath alcohol content) of .15 or higher or when the driver refuses to blow when requested to by a police officer.

The following locations are certified by Maryland's MVA:

Nat'l Interlock Service - 800-374-5760

Smart Start - 800-880-3394

Draeger Interlock of Maryland - 800-332-6858

Guardian Interlock Systems - 800-499-0994

Alcohol Detection Systems - 800-786-7394

The foregoing companies offer different products at different prices. They may also charge differently for their prodcurts. In this writer's experience, digital devices tend to be more accurate then analog devices where you have a choice.

Client Reviews
Thank God For You
I have not stopped thanking God for you! Your no deal tactic was amazing, and will save my professional license. I am more then impressed and will refer everybody I know.
Good trial, great verdict!
Thank you for defending our son in court. We were so scarred what would happen in a DUI case with an underage defendant. Good trial- great verdict! Now he can go to school with a clean slate.
All my DUI charges dropped!
Being on probation for a prior DUI, I was a lot of trouble when I got my subsequent DUI. Mr. Robinson assured me everything would work out just fine. He walked into court and 10 minutes later he walked out with all DUI charges dropped. He really saved my bacon. Miracle worker!
Very good law office
Ross Albers was a great attorney. I appreciated how he handled my case and the respect for the process he showed. He was fair and very knowledgable, and I feel like his contacts and previous relationship with the prosecutors' office was a great help to my case.
Knowledgeable, professional and responsive.
Bruce was knowledgeable, professional and responsive. He answered my questions and handled the court proceedings very competently. I would recommend him without hesitation.