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Ignition Interlock Devices in New Jersey

If your license has been suspended due to a DUI offense, the court may require that you install an ignition interlock device (IID) to fully restore your driving privileges. An ignition interlock device (IID) is a handheld breath-testing device that is installed into a vehicle. Before the vehicle can be started the individual must exhale into the device: if the results of the breath test are .05% or higher, the vehicle will not start. Random breath samples while the car is in motion are required as well. Failure to provide a sample, or samples over .05% will start up the car alarm (e.g. horn honking and lights flashing) until the car is pulled over. The ignition interlock device must be installed in every vehicle the offender owns and operates and the offender is prohibited from driving in any vehicle that does not have the device installed.

For your first DUI offense, you may be required to install an IID for six months to one year based on the judge’s discretion. If your BAC was 0.15% or greater, an IID installation is mandatory during your license suspension and for six months to one year following restoration. Your second DUI offense will also require a mandatory IID installation during your license suspension and for one to three years following restoration. Your third and subsequent DUI offenses will require a mandatory IID installation during your license suspension and for one to three years following restoration. If the court requires that you install an IID, you will receive a notice of suspension from the MVC with instructions on how to obtain the device. Further, failure to have an IID installed when ordered by the judge could result in an additional one year driving privilege suspension.


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