Illinois Statutes Chapter 45. Interstate Compacts § 145/3. Ratification and approval subject to approval by various legislatures and Congress

§ 3. The ratification and approval of said compact by this State shall not be binding or obligatory until it shall have been likewise approved by the legislatures of any three of the States of Indiana, Michigan, Minnesota, New York, Ohio, Pennsylvania and Wisconsin and by The Congress of the United States. Nothing in this Act or in said compact contained shall be construed as abridging the right of the General Assembly, at any time, to exercise its own discretion as to what laws on the subject matter referred to in said compact it will enact, repeal or amend.