N.H. Code Admin. R. Rev 3002.04
(a) The recording surcharge shall not be assessed for the recording of any documents in which the United States or any instrumentality thereof, or a government corporation which is specifically exempt from state or local taxation under the provisions of federal law, is a party, including, but not limited to, the:
(b) In instances where the exempt status of a party is uncertain, the register of deeds shall:
(1) Request evidence from the party that:
Source. #9437, eff 3-24-09; ss by #12137, eff 3-22-17