N.H. Rev. Stat. Ann. § 412:25

Every advisory organization shall file with the commissioner before the effective date every statistical plan, all prospective loss costs, provisions for special assessments and all supplementary rating information and every change or amendment or modification of any of the foregoing proposed for use in this state. Such filings shall be subject to the provisions of RSA 400-A:29, VI(d) and (e), RSA 412:16, and RSA 412:19 and other provisions of this chapter relating to filings made by insurers.