Commencing July 1, 1994 and thereafter, the State Board of Education through the office of the State Superintendent of Education shall have and exercise, in and with respect to an educational service region located in a city of 500,000 or more inhabitants, and in and with respect to each school district located in any such educational service region, all rights, powers, duties and responsibilities theretofore vested in and exercised and performed by the regional superintendent of schools in that educational service region under the provisions of this Act or any other law of this State.
105 ILCS 5/2-3.105