Terms Used In New Hampshire Revised Statutes 259:20-a

• Commercial motor vehicle: shall mean a motor vehicle or a combination of motor vehicles, used in commerce, to transport passengers or property if:
  (a) The vehicle has a gross vehicle weight rating of 26,001 pounds or more;
  (b) The vehicle has a gross combination weight rating or actual weight of 26,001 or more pounds, inclusive of any towed unit with gross vehicle weight rating or actual weight of more than 10,000 pounds;
  (c) The vehicle is designed or used to transport 16 or more passengers, including the driver; or
  (d) The vehicle is of any size and is used in the transportation of hazardous materials required to be placarded under 49 C. See New Hampshire Revised Statutes 259:12-e