RSA 675:6 Method of Adoption.

Every local master plan, subdivision regulation, site plan review regulation and historic district regulation referred to in this title shall be adopted or amended by the planning board or historic district commission, as appropriate, in the following manner:
I. The board or commission, as appropriate, shall hold a public hearing prior to adoption or amendment. Notice for the time and place of the hearing shall be as provided in RSA 675:7.
II. The board or commission, as appropriate, may adopt or amend the master plan or regulation upon completion of the public hearing by an affirmative vote of a majority of its members.
III. No master plan, regulation, amendment or exception adopted under this section shall be legal or have any force and effect until copies of it