What is an Ignition Interlock Device (IID)?

An Ignition Interlock Device (IID) is specifically designed to prevent a vehicle from starting if the driver has been drinking alcohol. This device requires the driver to provide a breath sample that measures their blood alcohol content (BAC). If the BAC is above a preset limit, typically 0.02%, the vehicle will not start, thereby helping to ensure that individuals who have consumed alcohol do not operate the vehicle, increasing road safety.

By utilizing IIDs, individuals who may be required to use them—typically due to previous DUI convictions—can demonstrate their commitment to responsible driving. This technology plays a crucial role in reducing the likelihood of alcohol-related accidents by directly addressing the issue of impaired driving before it occurs.

The other options do not accurately describe the function of an IID, as they pertain to different types of monitoring or tracking devices unrelated to alcohol prevention.