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An ignition interlock is an in-car breath alcohol screening instrument that prevents a vehicle from starting if it detects a driver’s blood alcohol concentration (BAC) over a pre-set limit. Using the same alcohol sensing technology used by police in roadside screening, the ignition interlock is designed to fit inside the vehicle, near the driver’s seat, and is connected directly to the vehicle’s ignition system. We serve: Arizona, Florida, New Mexico, Ohio, Pennsylvania and Virginia.