Terms Used In New Hampshire Revised Statutes 259:37-a

• Combination vehicle: shall mean a combination of truck-tractor and semi-trailer, or a combination of truck-tractor, semi-trailer, and full trailer, being driven together as an articulated unit. See New Hampshire Revised Statutes 259:11-a
• Semi-trailer: shall mean a vehicle of the trailer type so designed and used in conjunction with a self-propelled vehicle that a considerable part of its own weight or that of its load rests upon and is carried by the towing vehicle, and not including a pair or set of wheels commonly used as an implement for other purposes than transportation, provided, however, that the word "semi-trailer" shall not include any vehicle as described in this section if used exclusively for agricultural purposes unless said vehicle be of the type constructed specifically to be towed by a tractor-type truck. See New Hampshire Revised Statutes 259:98
• Trailer: shall mean any vehicle without motive power designed for carrying property or passengers wholly on its own structure and for being drawn by a self-propelled vehicle, except those running exclusively on snow or on stationary tracks and vehicles used exclusively for agricultural purposes. See New Hampshire Revised Statutes 259:113