If a driver under 18 years of age accumulates 18 points within three consecutive years, his or her license will be suspended for up to

If a driver under 18 years of age accumulates 18 points within three consecutive years, his or her license will be suspended for up to one year. [Demerit Points Assessed After Court Conviction (based upon date of violation), Accidents and Financial Responsibility - Part Sixteen, State of New Hampshire Driver's Manual]