N.H. Rev. Stat. Ann. § 356-B:21

Floor plans previously recorded pursuant to the provisions set forth in RSA 356-B:16, II and III may be used in lieu of new floor plans to satisfy in whole or in part the requirements of RSA 356-B:18, II, RSA 356-B:23, II and/or RSA 356-B:25 if certifications thereof are recorded by the declarant in accordance with RSA 356-B:20, II; and if such certifications are so recorded, the floor plans which they certify shall be deemed recorded pursuant to RSA 356-B:20, III, within the meaning of RSA 356-B:18, II, RSA 356-B:23, II and/or RSA 356-B:25.