UTV/ATV's and SNOWMOBILE TRAIL USE
This applies to the Standard Season of Snowmobiling, December 15th to March 31th. Other times of the year they are closed to all WHEELED Vehicles.
Tracked OHRVs
In order to operate on state-approved snowmobile trails, an OHRV (wheeled vehicle) that has had the wheels or tires removed and replaced with tracks, cleats or skis, MUST be properly registered in New Hampshire as a snowmobile.
The tracked OHRV must meet the definition of a snowmobile as defined by law. The OHRV,
with the tracks on, cannot exceed 54 inches in width and 1,200 pounds.
A snowmobile registration is only required to operate on snowmobile trails. If only operating on frozen lakes, etc., with tracks or as a wheeled vehicle, just a New Hampshire OHRV registration is required.
Machines operated as a tracked OHRV on snowmobile trails in the winter, and as a wheeled OHRV
must be dually registered in New Hampshire; both an OHRV and snowmobile registration are required.
Both sets of decal stickers must be displayed on the machine.
MORE INFORMATION,
http://www.eregulations.com/newhamps...n-information/