What year is a motor vehicle exempt from a title?

As of January 1, 2015 motor vehicles year 2000 and newer need titles,  a vehicle that is 1999 or older, a person must present to the clerk at the time of registering either a previously issued New Hampshire certificate of registration or copy thereof (temporary registrations do not meet the requirements of previously issued), a valid title or copy of (NH or out of state) or a vehicle identification verification form completed by an authorized agent named on the form (these forms may be obtained at the Town Clerks Office) and a bill of sale. Vehicles 2000 and newer need a title and a bill of sale.