N.H. Rev. Stat. § 310-A:18
The office shall issue a license, upon payment of the registration fee established by the office of professional licensure and certification, to any applicant who has satisfactorily met all the requirements of this subdivision. The issuance of a license by the office shall be prima facie evidence that the person named in the license is entitled to all the rights and privileges of a licensed professional engineer while the license remains valid. Each licensee shall upon licensure obtain a seal of the design meeting the criteria established by the board, bearing the registrant's name and the legend, "Licensed Professional Engineer." All papers or documents involving the practice of engineering under this subdivision, when issued or filed for public record, shall be dated, and bear the signature and seal of the licensed professional engineer who prepared or had responsibility for and approved them. It shall be a class B misdemeanor for the licensee to stamp or seal any documents with such seal after the license of the licensee has expired or has been revoked, unless such license shall have been renewed or reissued.
RSA 310-A:18
1981, 485:1. 1995, 136:5, eff. July 23, 1995; 284:60, eff. Jan. 1, 1996.