70 ILCS 520/10
The Authority may by ordinance designate a portion of the territorial jurisdiction of the Authority for certification as an Enterprise Zone under the Illinois Enterprise Zone Act in addition to any other enterprise zones which may be created under that Act, which area shall have all the privileges and rights of an Enterprise Zone pursuant to the Illinois Enterprise Zone Act, but which shall not be counted in determining the number of Enterprise Zones to be created in any year pursuant to that Act.
Prior to January 1, 1999, the Authority may by ordinance designate a portion of the territorial jurisdiction of the Authority located in the southeastern portion of Chouteau Township and the southwestern portion of Edwardsville Township along FAR 310 for certification as an Enterprise Zone under the Illinois Enterprise Zone Act in addition to any other enterprise zones which may be created under that Act, which area shall have all the privileges and rights of an Enterprise Zone under the Illinois Enterprise Zone Act, but which shall not be counted in determining the number of Enterprise Zones to be created in any year pursuant to that Act.
Prior to January 1, 2000 the Authority may by ordinance designate a portion of the territorial jurisdiction of the Authority located in the townships of O'Fallon, Lebanon, Mascoutah, and Shiloh Valley of the county of St. Clair for certification as an Enterprise Zone under the Illinois Enterprise Zone Act in addition to any other Enterprise Zones which may be created under that Act. The area shall have all the privileges and rights of an Enterprise Zone under the Illinois Enterprise Zone Act but shall not be counted in determining the number of Enterprise Zones to be created in any year under that Act.
70 ILCS 520/10