(105 ILCS 5/16-5) (from Ch. 122, par. 16-5)
    Sec. 16-5. Agreement for joint use of property.
    Prior to the third Saturday of August of any year the school board of any district which does not by itself maintain a high school may enter into an agreement with any township high school board of education or the school board of any other high school district, by which agreement grade school or high school property, real or personal, owned by or held for the use of either district within territory included in both districts may be used jointly for school purposes by both such districts in the manner provided in the agreement. If such school district has a population of 1000 or more, and if legal title to any real property affected by the agreement is not held by the school board of a school district that is party to the agreement, the agreement shall be invalid unless prior to such third Saturday of August the written consent of the trustees of schools of the township or townships, regional board of school trustees, or township land commissioners holding legal title to the property affected by the agreement is first obtained.
(Source: P.A. 88-155.)