If a person not authorized by this chapter to solemnize marriages shall join any persons in marriage, with or without a certificate, he shall be guilty of a misdemeanor.
N.H. Rev. Stat. Ann. § 457:35
Penalty for Solemnization by Unauthorized Person
Source
Official source: New Hampshire General Court. Reproduced from public-domain New Hampshire statutes; confirm against the official source for the current text. Not legal advice.