(105 ILCS 5/28-1) (from Ch. 122, par. 28-1)
    Sec. 28-1. Copies and prices filed - Bond. No publisher or retail dealer shall offer any school instructional materials for adoption, sale, or exchange in the State until it has complied with the following conditions:
        1. The publisher or retail dealer shall publish on its website by July 15 each year a
    
sworn statement of the usual list price, the lowest net wholesale price, and the lowest net exchange price at which the material is sold or exchanged for old material on the same subject of like grade and kind but of a different series taken in part payment thereof.
        2. The publisher or retail dealer shall obtain a bond payable to the People of the
    
State of Illinois with a surety company authorized to do business in the State of Illinois as surety thereon of not less than $2,000 nor more than $10,000 conditioned as follows:
            (a) That the publisher or retail dealer will furnish annually any of the materials
        
listed on the sworn statement on its website to any school district and any school corporation in this State at the lowest net prices contained in the statements and that it will maintain said prices uniformly throughout the State.
            (b) That the publisher or retail dealer will reduce such net prices in Illinois
        
whenever they are reduced elsewhere in the United States, and shall publish on its website a sworn statement of reductions made elsewhere, so that at no time shall any instructional material so filed and listed by the publisher or retail dealer be sold in this State at a higher net price than is received for such material elsewhere in the United States.
            (c) The publisher or retail dealer shall not enter into any understanding, agreement
        
or combination to control the prices or to restrict competition in the sale of instructional materials.
(Source: P.A. 101-17, eff. 6-14-19.)