An ignition interlock device (IID) connects to your vehicle’s ignition system. In order to start your car, you must submit a breath sample to the IID. It prevents you from starting your car if your BAC is at or over 0.05%. You are also required to take random breath tests while you are driving.
If you are ordered to install an IID, the following requirements apply:
- For a first offense with a BAC lower than 0.15%, it is at the discretion of the New Jersey Superior Court Judge who rules on your DWI case to order whether an IID be installed in your vehicle once your license is restored. The duration ranges from six months to a year.
- If your first offense conviction resulted from a BAC of 0.15% or higher, there is a mandatory requirement to install the device while your license is suspended and for six months to one year after it is restored.
- For second and third DWI convictions, you are subject to the mandatory installation of an IID while your driving privileges are suspended and for one to three years after your privileges are restored.
The Motor Vehicle Commission (MVC) will send you a notice of suspension with instructions for obtaining the device. If you don’t follow the judge’s order to install an IID, you may then lose your license for one additional year.