21:44 Age of Majority; Adults. – Notwithstanding any provision of law to the contrary, the words 'adult', 'majority', 'age of majority', 'full age or lawful age', and all other terms of referring to those persons who are to be considered adults, shall mean those persons who have attained the age of 18 years. Source. 1973, 72:72, eff. June 3, 1973.
New Hampshire Legal Code