Va. Code Ann. § 46.2-666

No person shall be required to obtain the registration certificate, license plates, or decals for or pay a registration fee prescribed for any motor vehicle, trailer, or semitrailer owned by the owner or lessee of a farm and used by him on a seasonal basis in transporting farm produce and livestock along public highways for a distance of no more than 75 miles or to a storage house, packing plant, or market. The provisions of this section shall only apply to (i) pickup or panel trucks; (ii) sport utility vehicles; (iii) vehicles other than pickup or panel trucks, sport utility vehicles, trailers, or semitrailers having a gross vehicle weight rating greater than 7,500 pounds; and (iv) trailers and semitrailers. The owner or lessee of a pickup or panel truck or sport utility vehicle claiming the exemption provided pursuant to this section shall be required to obtain a permanent farm use placard pursuant to § 46.2-684.2.