70 ILCS 1825/15
Within 60 days after this Act becomes effective the Governor, by and with the advice and consent of the Senate shall appoint 3 members of the Board who reside within the District outside the corporate boundaries of the City of Joliet for initial terms expiring June 1st of the years 1959, 1961, and 1963, respectively, and the Mayor, with the advice and consent of the City Council of the City of Joliet, shall appoint 3 members of the Board who reside within the City of Joliet for initial terms expiring June 1st of the years 1958, 1960, and 1962, respectively. Of the 3 members each appointed by the Governor and the Mayor not more than 2 shall be affiliated with the same political party at the time of appointment. Beginning with the first appointment made by the Governor, with the advice and consent of the Senate, after the effective date of this amendatory Act of the 96th General Assembly, the Governor must appoint members who reside within the District outside the corporate boundaries of the City of Joliet . Within 60 days after the effective date of this amendatory Act of the 94th General Assembly, the County Executive of Will County, with the advice and consent of the County Board, shall appoint 3 members of the Board for terms expiring June 1st of 2008, 2010, and 2012, respectively. Within 60 days after the effective date of this amendatory Act of the 96th General Assembly, the President of the Village of Romeoville, with the advice and consent of the corporate authorities of the Village of Romeoville, shall appoint one member of the Board who resides within the Village of Romeoville for an initial term expiring June 1st of 2016; and within 60 days after the effective date of this amendatory Act of the 100th General Assembly, the President of the Village of Romeoville, with the advice and consent of the corporate authorities of the Village of Romeoville, shall appoint one additional member who resides within the Village of Romeoville for an initial term expiring June 1st of 2021.
At the expiration of the term of any member, his or her successor shall be appointed by the Governor, Mayor, President of the Village of Romeoville, or County Executive of Will County in like manner and with like regard to political party affiliation and place of residence of the appointee, as appointments for the initial terms.
All successors shall hold office for the term of 6 years from the first day of June of the year in which the term of office commences, except in the case of an appointment to fill a vacancy. In case of vacancy in the office of any member appointed by the Governor during the recess of the Senate, the Governor shall make a temporary appointment until the next meeting of the Senate when he or she shall nominate some person to fill such office; and any person so nominated, who is confirmed by the Senate, shall hold his or her office during the remainder of the term and until his or her successor shall be appointed and qualified. If the Senate is not in session at the time this Act takes effect, the Governor shall make temporary appointments as in case of vacancies. The Governor, the Mayor, the President of the Village of Romeoville, and the County Executive shall certify their respective appointments to the Secretary of State. Within 30 days after certification of his or her appointment, and before entering upon the duties of his or her office, each member of the Board shall take and subscribe the constitutional oath of office and file it in the office of the Secretary of State.
70 ILCS 1825/15