N.H. Rev. Stat. § 259:2-a
"Agricultural/industrial utility vehicle" shall mean a vehicle, including an off highway recreational vehicle, with 4 or 6 wheels, an internal combustion engine or electric motor, or both, but excluding a tractor, equipped in accordance with the provisions of RSA 261:41-a, III, that is capable of carrying not more than 6 occupants, has a load capacity of 1,500 pounds or less, and is in use for farming, agricultural, or light industrial uses, and is limited to ways or portions of ways where such vehicles are allowed and having posted speed limits of 40 miles per hour or less, within a 10 mile radius from an entrance to land used by the farm or a 2 mile radius from the entrance to the light industrial complex or construction site, and subject to any other special conditions established by the government authority controlling the way.
RSA 259:2-a
2014, 282:1, eff. July 28, 2014.