N.H. Rev. Stat. § 675:9
A copy of each master plan, zoning ordinance, historic district ordinance, capital improvement plan, building code, subdivision regulation, historic district regulation, site plan review regulation or amendment which is adopted by a municipality shall be placed in a central file with the office of planning and development; provided, however, that failure to file these documents or amendments with the office of planning and development shall not affect the validity of the document. Every municipality which adopts a master plan, zoning ordinance, historic district ordinance, capital improvement plan, building code, subdivision regulation or site plan review regulation or amendment thereto, shall inform the office of planning and development of such adoption or amendment. The office of planning and development is hereby authorized to gather this information by way of an annual survey of the municipalities or other such means as may be deemed appropriate. The office of planning and development shall periodically create lists and reports of the information gathered for use by the municipalities and the general public.
RSA 675:9
1983, 447:1. 1985, 103:24. 1987, 50:1. 1989, 266:28. 2002, 8:12, III. 2003, 319:9. 2004, 257:44. 2011, 224:122, eff. July 1, 2011. 2017, 156:64, eff. July 1, 2017. 2021, 91:198, eff. July 1, 2021.