N.J. Stat. Ann. § 39:4-50.20

5. The director shall certify or cause to be certified ignition interlock devices required by this act and shall publish a list of approved devices. A device shall not be certified unless the manufacturer enters into an agreement with the division for the provision of devices to indigent offenders, as determined by the director, at a reduced cost. The director shall provide a copy of this list along with information on the purpose and proper use of interlock devices to persons who have been ordered by the court to install such a device in their vehicles.