70 ILCS 3205/5
On the effective date of this Act, the Governor shall appoint 3 members of the Board for initial terms expiring July 1 of the years 1988, 1989 and 1990, respectively and the Mayor of the City of Chicago shall appoint 3 members of the Board for initial terms expiring July 1 of the years 1988, 1989 and 1990, respectively. At the expiration of the term of any member appointed by the Governor, his successor shall be appointed by the Governor in like manner, and at the expiration of the term of any member appointed by the Mayor of the City of Chicago, his successor shall be appointed by the Mayor of the City of Chicago in like manner, as appointments for the initial terms. All successors shall hold office for a term of 3 years from the first day of July of the year in which they are appointed, except in case of an appointment to fill a vacancy. The initial Chairman shall serve in that capacity for a term expiring July 1, 1991. All subsequent Chairmen shall hold office for a term of 3 years. Each member, including the Chairman, shall hold office until the expiration of his term and until his successor is appointed and qualified. Nothing shall preclude a member or a chairman from serving consecutive terms. Vacancies for members and for the Chairman shall be filled in the same manner as original appointments for the balance of the unexpired term.
In case of a vacancy in the office of the chairman or of any of the three members of the Board 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 shall appoint some person to fill such office. Any person so appointed who is confirmed by the Senate shall hold office during the remainder of the term and until his successor is appointed and qualified. The initial appointments by the Governor, including the chairman, shall be effective immediately, but shall remain in effect no longer than 30 calendar days after commencement of the next Senate session unless the appointee is confirmed by the Senate within that time. The appointment of the initial chairman by the Governor shall be subject to the approval of the Mayor of the City of Chicago.
70 ILCS 3205/5