You pay no vehicle registration fees in New Hampshire if you have a service-connected total and permanent disability rating, are totally blind from a service-connected cause, are a service-connected amputee or paraplegic who received federal funds for a specially adapted vehicle, or are an honorably discharged former prisoner of war.
Claim the exemption when you register your vehicle, at a Division of Motor Vehicles office or at the town or city clerk that processes your registration.
Your VA rating letter, documentation of blindness, amputation or paraplegia and the federally funded adapted vehicle, or proof of former prisoner of war status, plus your DD214.