520 ILCS 10/7
Any species or subspecies of animal or plant designated as endangered or threatened by the Secretary of the Interior of the United States pursuant to the Endangered Species Act of 1973, P.L. 93-205, as amended, shall be automatically listed as an endangered or threatened species under this Act and thereby placed on the Illinois List by the Board without notice or public hearing. The Board may list, as endangered or threatened, species of animals or plants which have reproduced in or otherwise significantly used, as in migration or overwintering, the area which is now the State of Illinois, if there is scientific evidence that the species qualify as endangered or threatened as these terms are defined in this Act. The Board may delist any non-federally-listed species for which it finds satisfactory scientific evidence that its wild or natural populations are no longer endangered or threatened. Listing, delisting or change of listing status shall be made only after a public hearing.
Notice of such hearing shall be published at least 7 days before the hearing in a newspaper of general circulation throughout the state and shall be mailed to any person who has, in writing requested such notice from the agency holding the hearing. All persons heard or represented at a hearing and all persons who requested from the responsible agency notice of such hearing, shall be given a written summary of any action taken by the Board or Department relative to the hearing subject.
Upon listing or delisting or change of listing status by the Board, the Director shall file a certified copy of the names of the species so listed, delisted or changed with the Secretary of State as provided in "The Illinois Administrative Procedure Act", approved September 22, 1975, as amended.
520 ILCS 10/7