N.H. Rev. Stat. Ann. § 147-C:3
There shall be at least 5, but no more than 9, persons appointed to serve on the committee. At least one member shall be a chemical engineer if such a person is available for appointment. The governing body shall:
I. Appoint to the committee one or more members of:
Source. 1981, 567:1. 1983, 137:15, eff. Aug. 6, 1983.