N.H. Rev. Stat. § 270:29
It shall be unlawful to operate a boat or canoe propelled by mechanical power on any stream or body of water within the boundaries of that part of the White Mountain National forest that is situated within the state of New Hampshire. The provisions of this section shall not apply to the following bodies of water: Stinson Lake in Rumney, the North and South Percy Ponds in Stark and Kimball Pond in Chatham, and in Long Pond in the town of Benton, nor to persons engaged in emergency rescue operations or public service. Whoever violates the provisions of this section shall be guilty of a violation if a natural person, or guilty of a misdemeanor if any other person.
RSA 270:29
1963, 67:1. 1965, 347:3. 1973, 530:41, eff. Oct. 31, 1973 at 11:59 p.m.