N.H. Rev. Stat. § 655:25
No primary petitions as provided in RSA 655:21 shall be accepted by the official with whom they are to be filed unless there is attached thereto an assent to candidacy in the following form subscribed to by the person who seeks to have his name printed upon the primary ballot:
State of New Hampshire
I, ____________________, of __________ in the county of __________ do hereby assent to the printing of my name on the primary ballot as requested in the attached petition. I further declare that I am a registered member of the __________ party.
(Signed) ____________________
State of New Hampshire
County of ____________________
The above-named, ____________________, personally known to me (or who has proven his or her identity to me), appeared and made oath that the above declaration by him subscribed is true.
Before me,
____________________
Justice of the Peace, Notary Public, Town/City Clerk, or Deputy Clerk
RSA 655:25
1979, 436:1, eff. July 1, 1979. 2020, 35:1, eff. Sept. 26, 2020.