You can get one New Hampshire Disabled Veteran license plate at no charge if you were honorably discharged and have a total and permanent service-connected disability rating, are totally blind from a service-connected cause, or are a service-connected amputee or paraplegic who received federal funds for a specially adapted vehicle.
Apply at a Division of Motor Vehicles office or a town or city clerk's office that processes vehicle registrations, with your VA documentation and discharge paperwork.
Your DD214 showing an honorable discharge, and your VA rating letter or documentation of blindness, amputation or paraplegia and the federally funded adapted vehicle.
