How Does an Ignition Interlock Work?

IID How They WorkAn ignition interlock device (IID) is a device about the size of a cell phone that is connected to a motor vehicle’s starter system. The IID works by measuring the blood alcohol concentration/content (BAC) of the driver before and during the operation of the vehicle. The driver will be required to blow into the ignition interlock device in order to start their vehicle. Provided their BAC is below the programmed level, the vehicle will start as normal. If the driver’s BAC is higher than the preprogrammed level that was set by the state, the vehicle will not start. The courts in each state determine the programmed level, typically .02%, depending on the state law.

The process to have an interlock ignition device installed is easy and Ignition Interlock Help will help you with every step of the process, including filing required paperwork with your jurisdiction.

The ignition interlock process is easy, just follow the steps below.
Locate Locate – Locate an ignition interlock service provider near you
and schedule an appointment.
Install Install – The ignition interlock device is installed in the
vehicle by an experienced service provider and the client is
trained on proper usage.
Drive Drive – Turn ignition on and wait for device prompt. Blow into
device to start your vehicle.
Maintain Maintain – Follow up with regular service visits as scheduled.
The device will be calibrated and the testing data downloaded to
send to monitoring authorities.
Complete Complete – Device is removed after program completion and
vehicle returned to original condition.