70 ILCS 1870/2
Current through Public Act 103-593
All property of every kind owned by the Port District shall be exempt from taxation, however, a tax may be levied upon a lessee of the Port District by reason of the value of a leasehold estate separate and apart from the fee simple title, or upon such improvements as are constructed and owned by others than the Port District.
70 ILCS 1870/2