70 ILCS 200/240-30
Within 60 days after October 7, 1969 (the effective date of Public Act 76-1769), the mayor of Rockford, with the advice and consent of the Rockford city council, shall appoint 5 members of the board for initial terms expiring June first of the years 1970, 1971, 1972, 1973, and 1974 respectively; the mayor of Loves Park, with the advice and consent of the Loves Park city council, shall appoint one member for an initial term expiring June first, 1972; the Chairman of the Winnebago County Board, with the advice and consent of the Winnebago County Board, shall appoint 3 members for initial terms expiring June first of the years 1970, 1972, and 1974, respectively. At the expiration of the term of any member appointed by the Mayor of Rockford, his successor shall be appointed by the Mayor of Rockford in like manner; at the expiration of the term of the member appointed by the Mayor of Loves Park, his successor shall be appointed in like manner by the Mayor of Loves Park; at the expiration of the term of any member appointed by the Chairman of the Winnebago County Board, his successor shall be appointed by the Chairman of the Winnebago County Board in like manner as appointments for the initial term. All successors shall hold office for a term of 5 years from the first day of June of the year in which they are appointed, except in case of an appointment to fill a vacancy.
70 ILCS 200/240-30