An in-vehicle breath alcohol ignition interlock device, often sought locally, requires a driver to submit a breath sample before starting a vehicle. This mechanism prevents operation if the blood alcohol content (BAC) exceeds a pre-programmed limit. For instance, a person convicted of driving under the influence (DUI) may be mandated by a court to install such a system in their vehicle as a condition of regaining driving privileges.
The implementation of these systems offers substantial safety benefits, reducing the incidence of alcohol-related accidents and fatalities. Historically, such technology has played a role in deterring repeat DUI offenses and promoting responsible driving habits. Its utilization contributes to safer roadways and protects both the driver and the public from the dangers of impaired driving.
