Tennessee Code Title 7. Consolidated Governments and Local Governmental Functions and Entities § 7-90-108

(a)(1) The authority shall have a board of directors in which all corporate powers of the authority shall be vested. The board shall consist of no fewer than seven (7) directors, all of whom shall be duly qualified voters of the municipality. A director shall serve without compensation, except that the authority may reimburse a director for actual expenses incurred in the performance of a director's duties. A director may not be an elected official or employee of the municipality. The directors shall have staggered terms.

(2) The initial board of directors shall be divided into three (3) groups containing substantially equal numbers. The initial term of the directors included in the first group shall be two (2) years; the initial term of the directors included in the second group shall be four (4) years; the initial term of the directors included in the third group shall be six (6) years. All subsequent terms of directors shall be six (6) years; provided, that if at the expiration of any term of office of any director a successor has not been appointed, the director whose term of office has expired shall continue to hold office until the director's successor is appointed.

(3) In the case of authorities created pursuant to the approval of two (2) or more municipalities acting jointly, as provided in § 7-90-119, the number of directors appointed by the governing body of each municipality shall be as nearly equal as practicable, and members appointed by one (1) municipality need not be approved by the other creating municipalities unless the charter of the authority provides otherwise.

(4) The governing body of the municipality shall appoint all directors. At the initial appointment, the governing body shall designate which directors serve an initial term of two (2), four (4) and six (6) years, respectively.

(5) If a vacancy occurs in the position of director, the vacancy shall be filled in the same manner as the original term for the remainder of the unexpired term.