(a) An ordinance authorizing the establishment of a river commission pursuant to § 25-232 shall provide for the membership of the commission, the method of selecting members, their terms of office and the filling of vacancies. Such ordinance shall provide for not more than twelve members from any one municipality and shall include: The chief elected official of each such municipality, or his designee, the chairman of the inland wetlands agency of each such municipality, or his designee, and a member of another land use regulation agency of each such municipality appointed by the chief elected official for such municipality; one representative each of a public utility or rail service company which owns property within the municipality or serves the municipality; one member representing a conservation organization or interest; one member representing a recreation organization or interest; one member representing a private or municipal economic development foundation, agency or interest; one member representing agriculture interests; one member representing business or industry interests; one member representing real estate interests and one member who is a riverfront property owner or a representative of a riverfront property owners’ association. In addition, the commission shall appoint as voting members-at-large one representative of each regional council of governments associated with the commission’s geographic area. The commission may appoint subcommittees as it deems appropriate and may elect an executive committee to carry out its business provided such executive committee shall include at least one representative of a conservation organization and one representative of a regional council of governments.

(b) Prior to transacting any official business, a river commission shall establish written procedures and bylaws for conducting business. Such procedures and bylaws shall be open to public inspection.