Section 75 ILCS 16/40-5 - Buildings and equipment(a) Whenever the board determines or resolves to erect a building to be used as a library, purchase a site for erecting such a building, purchase a building, repair, remodel, or improve an existing library building, build an addition to an existing library building, furnish necessary equipment for a library building, or acquire library materials (such as books, periodicals, films, and recordings) and electronic data storage and retrieval facilities in connection with either the purchase or construction of a new library building or the expansion of an existing library building, the trustees shall proceed as follows: (1) If a new building is to be erected or purchased or an existing library building is to be purchased, remodeled, repaired, improved, or an addition to an existing library building is to be erected, or necessary equipment is to be furnished, the board of trustees shall prepare a plan and an estimate of the cost. If a site or a building is to be purchased, the trustees shall make an estimate of the cost of the site or building.(2) The trustees may then determine the funds that will be available from accumulations and the amount to be raised from a bond issue, by annual certification or by a mortgage.(3) The trustees shall further determine the maximum term, not to exceed 20 years, over which they shall spread the collection of the cost of erecting a new building, remodeling, repairing, or improving an existing library building, erecting an addition to an existing library building , furnishing necessary equipment, purchasing and improving a site or building, or acquiring library materials (such as books, periodicals, films, and recordings) and electronic data storage and retrieval facilities in connection with either the purchase or construction of a new library building or the expansion of an existing library building.(b) The secretary shall thereupon post notice of these proceedings and of the meeting when the financing of the acquisition or other project shall be determined. The notice shall specify the place where the plan and estimate are available for public inspection.(c) For the purpose of Sections 40-5 through 40-30, the acquisition of library materials (such as books, periodicals, films, and recordings) and electronic data storage and retrieval facilities is considered to be in connection with the purchase or construction of a new library building or the expansion of an existing library building if the determination of the board of trustees to acquire the library materials is made within 5 years from the date that a new library building or the expansion of an existing library building is completed.