N.H. Rev. Stat. § 36:50
A regional planning commission may assist the planning board of any municipality within the delineated region to carry out any regional plan or plans developed by said commission. A regional planning commission may also render assistance on local planning problems. A regional planning commission may make recommendations on the basis of its plans and studies to any planning board, to the legislative body of any city and to the selectmen of any town within its region, to the county commissioners of the county or counties in which said region is located and to any state or federal authorities. Upon completion of a comprehensive master plan for the region or any portion of said comprehensive master plan, a regional planning commission may file certified copies of said comprehensive master plan or portion thereof with the planning board of any member municipality. Such planning boards may adopt all or any part of such comprehensive master plan which pertains to the areas within its jurisdiction as its own master plan, subject to the requirements of RSA 674:1-4.
RSA 36:50
1969, 324:1, eff. Aug. 29, 1969. 2000, 200:5, eff. July 29, 2000.