20 ILCS 3515/4
The Illinois Finance Authority created by the Illinois Finance Authority Act shall succeed to, assume and exercise all rights, powers, duties and responsibilities formerly exercised by the Illinois Development Finance Authority prior to the abolition of that Authority by this amendatory Act of the 93rd General Assembly. All books, records, papers, documents and pending business in any way pertaining to the former Illinois Development Finance Authority are transferred to the Illinois Finance Authority, but any rights or obligations of any person under any contract made by, or under any rules, regulations, uniform standards, criteria and guidelines established or approved by such former Illinois Environmental Facilities Financing Authority shall be unaffected thereby. All bonds, notes or other evidences of indebtedness outstanding on the effective date of this amendatory Act of the 93rd General Assembly shall be unaffected by the transfer of functions to the Illinois Finance Authority. No rule, regulation, standard, criteria or guideline promulgated, established or approved by the former Illinois Development Finance Authority pursuant to an exercise of any right, power, duty or responsibility assumed by and transferred to the Illinois Finance Authority shall be affected by this amendatory Act of the 93rd General Assembly, and all such rules, regulations, standards, criteria and guidelines shall become those of the Illinois Finance Authority until such time as they are amended or repealed by the Authority. Any action, including without limitation, approvals of applications for bonds and resolutions constituting official action under the Internal Revenue Code, by the Illinois Environmental Facilities Financing Authority prior to the September 23, 1983 effective date of Public Act 83-669 shall remain effective to the same extent as if such action had been taken by the Authority and shall be deemed to be action taken by the Authority. The State authority is constituted a public instrumentality and the exercise by the State authority of the powers conferred by this Act shall be deemed and held to be the performance of an essential public function. The Illinois Finance Authority Act shall not apply to the provision of financing for environmental facilities by the Authority, unless such financing is provided pursuant to such Act.
20 ILCS 3515/4