The management and control of a county authority, its property, operations, business and affairs shall be lodged in a board of not fewer than twelve nor more than twenty-one persons who shall be appointed by the county commission and be known as members of the authority. The county commission shall appoint one member to represent the county commission on the board and, for each municipality located within the county, the county commission shall appoint one member to represent the municipality. The city and town council of each municipality located within the county shall submit to the county commission the names of three persons, one of whom the county commission shall appoint to be the municipality's representative on the board. Other members of the board shall be appointed by the county commission and shall include representatives of business, industry and labor. The members of the authority first appointed shall serve respectively for terms of one year, two years and three years, divided equally or as nearly equal as possible between these terms. Thereafter, members shall be appointed for terms of three years each. A member may be reappointed for such additional term or terms as the county commission may deem proper. If a member resigns, is removed or for any other reason his membership terminates during his term of office, a successor shall be appointed by the county commission to fill out the remainder of his term. Members in office at the expiration of their respective terms shall continue to serve until their successors have been appointed and have qualified. The county commission may at any time remove any member of the board by an order duly entered of record and may appoint a successor member for any member so removed.

Other persons, firms, unincorporated associations, and corporations, who reside, maintain offices, or have economic interests, as the case may be, in the county, shall be eligible to participate in and request the county commission to appoint members to the development authority as the said authority shall by its bylaws provide.