In-Car Breathalyzers

The average drunk driver has driven drunk 80 times before a first arrest. And on any given day, your family shares the roadways with more than 2 million drunk drivers who have had three or more prior convictions.  While suspending the license of these individuals makes sense, in reality, three out of four of those with a suspended license still drive, threatening the safety of you and your loved ones.  That is why MADD now supports the usage of ignition interlock devices, or in-car breathalyzers, which require all convicted drunk drivers to prove they are sober before the car will start. 

Blow Before They Go

An ignition interlock is a device about the size of a cell phone. It is wired into the ignition system of a vehicle.  A convicted drunk driver must blow in to the device in order to start their vehicle.  If they have a measurable amount of alcohol in their system, the vehicle will not start. It is a simple and economical way to make sure that offenders can drive to and from work, but that they can't drive drunk.

We need your help to require use of this life-saving technology by all offenders.

• Ask your representatives to require interlocks for all offenders
• Sign our Campaign to Eliminate Drunk Driving pledge
• Status of State Ignition Interlock Laws  
• See where your state stands on interlocks
• Get the answers to frequently asked interlock questions