Illinois Statutes Chapter 5. General Provisions § 573/5-20. Power of Illinois to regulate

§ 5-20. Power of Illinois to regulate. While the United States retains a federal proprietorial interest over the subject lands, the State of Illinois may not impose its regulatory power directly upon the United States nor may it tax the federal land. However, the State of Illinois may tax a lessee's interest in the land, if State law permits.