65 ILCS 5/11-11-2
The corporate authorities of each municipality may borrow money or other property and accept contributions, capital grants, gifts, donations, services or other financial assistance from the United States of America, the Housing and Home Finance Agency or any other agency or instrumentality, corporate or otherwise, of the United States of America for or in aid of an "Urban Renewal Project" as defined in the Act of Congress approved August 2, 1954, being Public Law 560-83 rd Congress, known as the "Housing Act of 1954", and which the municipality is authorized to effectuate, and to this end the municipality may comply with such conditions and enter into such agreements upon such covenants, terms and conditions as the corporate authorities may deem necessary, appropriate, convenient or desirable. The corporate authorities may issue bonds, debentures, notes, special certificates or other evidences of indebtedness in order to secure loans made pursuant hereto. However, any such bonds, debentures, notes, special certificates or other evidence of indebtedness issued hereunder shall be payable solely out of the proceeds from the sale of real property acquired in the project area, out of any revenue from the operation, management or demolition of existing buildings or improvements of any real property acquired in such project area, out of such capital grants as the municipality may receive from the United States of America or any agency or instrumentality thereof, or out of any local cash or non-cash grants-in-aid, as defined in the Act of Congress approved July 15, 1949, being Public Law 171 --81st Congress, known as the "Housing Act of 1949", as amended, including the Housing Act of 1954, which the municipality or public body or any other entity may make in connection with the implementation of such Urban Renewal Project. Any bonds issued under this Section as limited bonds as defined in Section 3 of the Local Government Debt Reform Act shall comply with the requirements of the Bond Issue Notification Act.
Any municipality having a population of 500,000 or more may enter into a contract with the United States of America or any agency or instrumentality thereof and agree to the extent authorized by law, to provide such local grants-in-aid. Notwithstanding any other provision of this Code, such contract may contain a provision pledging the municipality to provide such local grants-in-aid over a period of time, not to exceed 5 years from the date of such contract.
65 ILCS 5/11-11-2