The installation fee and first two-month lease fee are not refundable after installation. However, the lease fees may be applied if the interlock device is reinstalled at a later date. Under this circumstance, it is imperative that you confirm eligibility for the ignition interlock prior to installation and payment of any fees. The potential interlock user may also opt to request a short demonstration of the interlock testing sequence prior to installation and payment of any fees to affirm the ability and desire to use the interlock. Again, it is imperative that you verify with the NCDMV prior to installation that you are eligible to receive interlock program service credit for use of the device in your vehicle.