An ignition interlock system, referred to as a Breath Alcohol Ignition Interlock Device (BAIID), is a breath alcohol analyzer with internal memory that interconnects with the ignition and other control systems of a motor vehicle. The purpose of the BAIID is to measure the breath alcohol concentration (BAC) of an intended driver and to prevent the motor vehicle from being started if the BAC exceeds .025.

The device will ask for random re-tests while the car is running. The rolling-retest must not exceed .04. The internal computer records the date, time, BAC level, or indicates if the driver refused to provide a breath sample. Failing, (BAC exceeding .04) or refusing the rolling test will cause the unit to lockout requiring service within 5 days or else the car will be rendered inoperable. Failing the rolling retest, circumventing or tampering with the unit is a major violation.

You must have your unit inspected and calibrated every 60 days. All violations are reported to the DLAD.

As of October 1, 1999, any person whose driving privileges have been revoked as a result of multiple drunk driving convictions, and has been issued an order granting restricted driving privileges from the Driver's License Appeal Division (DLAD) must:

• Provide the Secretary of State with a certificate from a certified vendor verifying that an ignition interlock device has been installed into the vehicle (s) the driver will operate.

 

• Have an ignition interlock device on every vehicle they operate for a minimum of 12 months from the issuance of the restricted license.

 

• Have their device calibrated/ monitored by a certified Ignition Interlock Provider every 60 days.