Illinois Statutes Chapter 105. Schools § 5/28-1. Copies and prices filed--Bond

(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.