Ignition Interlock Devices

Connected to a vehicle's ignition system, an ignition interlock device requires an individual to breathe into the equipment, which prevents the vehicle from starting if the individual's breath alcohol concentration is outside the acceptable range.

Ignition interlock devices are installed at the expense of the driver.

The N.C. Division of Motor Vehicles can waive ignition interlock installations on additional vehicles for applicants who meet household income criteria and have submitted an Affidavit of Indigence II with their written hearing request. The form is also available in Spanish.

Ignition Interlock Providers

Continuous Alcohol Monitoring

In certain cases, NCDMV may grant the use of a continuous alcohol monitor device. Call (919) 715-7000 for more information.