Montana Fish, Wildlife & Parks reminds -off-highway vehicles owners, including motorcycles, all-terrain vehicles (ATVs), quadricycles, dune buggies, amphibious vehicles and air cushion vehicles, have registration and use rules that are worth reviewing before setting off on a hunt. On most public lands, OHVs are required to stay on designated routes determined by the land management agency responsible for those lands. It is also illegal to retrieve harvested wild game by going cross-country, or going off designated routes. Private landowners may have additional restrictions or requirements of hunters with OHVs. OHV registration requirements in Montana include: