N.H. Rev. Stat. § 21-J:14-g

I. The commissioner may decertify, suspend, or take other disciplinary action against any person for failure to comply with the rules of the assessing standards board adopted pursuant to RSA 21-J:14-f, II or the assessing certification board adopted pursuant to 310-C. II. Any person aggrieved by a decertification, suspension, or other disciplinary action of the assessing certification board under RSA 310-C may appeal from such decision by application to the board of tax and land appeals or by petition to the superior court in the county in which such person resides or maintains his or her business within 30 days after receiving written notice of the commissioner's decision. The board of tax and land appeals or the court, as the case may be, shall hear the appeal forthwith.