RSA 356:12: Limitation of Actions.

I. A civil action commenced pursuant to RSA 356:4-a to recover a civil penalty is barred if not commenced within 4 years after the cause of action accrues.

II. An action commenced pursuant to RSA 356:4-c and RSA 356:11 to recover damages is barred if it is not commenced within 4 years after the cause of action accrues, or within one year after the conclusion of any action or proceeding commenced pursuant to RSA 356:4-a.