N.H. Rev. Stat. Ann. § 76:16-d
II. In towns with dates of notice of tax, as defined in RSA 72:1-d and RSA 76:1-a, after December 31, the uniform deadlines in deferral and abatement applications, replies, and appeals statutes, including RSA 72:38-a and RSA 76:16, 16-a, and 17 shall be as follows:
Source. 1995, 265:18. 1998, 344:3. 2002, 217:4. 2007, 182:6, eff. April 1, 2007.