RSA 458-A:26 Registration of Child-Custody Determination.

I. A child-custody determination issued by a court of another state may be registered in this state, with or without a simultaneous request for enforcement, by sending to the office of the clerk of the superior court:
(a) A letter or other document requesting registration;
(b) Two copies, including one certified copy, of the determination sought to be registered, and a statement under penalty of perjury that to the best of the knowledge and belief of the person seeking registration the order has not been modified; and
(c) Except as otherwise provided in RSA 458-A:20, the name and address of the person seeking registration and any parent or person acting as a parent who has been awarded custody or visitation in the child-custody determination sought to be registered