(20 ILCS 655/5.4) (from Ch. 67 1/2, par. 609)
    Sec. 5.4. Amendment and Decertification of Enterprise Zones.
    (a) The terms of a certified enterprise zone designating ordinance may be amended to
        (i) alter the boundaries of the Enterprise Zone, or
        (ii) expand, limit or repeal tax incentives or
    
benefits provided in the ordinance, or
        (iii) alter the termination date of the zone, or
        (iv) make technical corrections in the enterprise
    
zone designating ordinance; but such amendment shall not be effective unless the Department issues an amended certificate for the Enterprise Zone, approving the amended designating ordinance. Upon the adoption of any ordinance amending or repealing the terms of a certified enterprise zone designating ordinance, the municipality or county shall promptly file with the Department an application for approval thereof, containing substantially the same information as required for an application under Section 5.1 insofar as material to the proposed changes. The municipality or county must hold a public hearing on the proposed changes as specified in Section 5 and, if the amendment is to effectuate the limitation of tax abatements under Section 5.4.1, then the public notice of the hearing shall state that property that is in both the enterprise zone and a redevelopment project area may not receive tax abatements unless within 60 days after the adoption of the amendment to the designating ordinance the municipality has determined that eligibility for tax abatements has been established,
        (v) include an area within another municipality or
    
county as part of the designated enterprise zone provided the requirements of Section 4 are complied with, or
        (vi) effectuate the limitation of tax abatements
    
under Section 5.4.1.
    (b) The Department shall approve or disapprove a proposed amendment to a certified enterprise zone within 90 days of its receipt of the application from the municipality or county. The Department may not approve changes in a Zone which are not in conformity with this Act, as now or hereafter amended, or with other applicable laws. If the Department issues an amended certificate for an Enterprise Zone, the amended certificate, together with the amended zone designating ordinance, shall be filed, recorded and transmitted as provided in Section 5.3.
    (c) An Enterprise Zone may be decertified by joint action of the Department and the designating county or municipality in accordance with this Section. The designating county or municipality shall conduct at least one public hearing within the zone prior to its adoption of an ordinance of de-designation. The mayor of the designating municipality or the chairman of the county board of the designating county shall execute a joint decertification agreement with the Department. A decertification of an Enterprise Zone shall not become effective until at least 6 months after the execution of the decertification agreement, which shall be filed in the office of the Secretary of State.
    (d) An Enterprise Zone may be decertified for cause by the Department in accordance with this Section. Prior to decertification: (1) the Department shall notify the chief elected official of the designating county or municipality in writing of the specific deficiencies which provide cause for decertification; (2) the Department shall place the designating county or municipality on probationary status for at least 6 months during which time corrective action may be achieved in the enterprise zone by the designating county or municipality; and, (3) the Department shall conduct at least one public hearing within the zone. If such corrective action is not achieved during the probationary period, the Department shall issue an amended certificate signed by the Director of the Department decertifying the enterprise zone, which certificate shall be filed in the office of the Secretary of State. A certified copy of the amended enterprise zone certificate, or a duplicate original thereof, shall be recorded in the office of recorder of the county in which the enterprise zone lies, and shall be provided to the chief elected official of the designating county or municipality. Decertification of an Enterprise Zone shall not become effective until 60 days after the date of filing.
    (e) In the event of a decertification, or an amendment reducing the length of the term or the area of an Enterprise Zone or the adoption of an ordinance reducing or eliminating tax benefits in an Enterprise Zone, all benefits previously extended within the Zone pursuant to this Act or pursuant to any other Illinois law providing benefits specifically to or within Enterprise Zones shall remain in effect for the original stated term of the Enterprise Zone, with respect to business enterprises within the Zone on the effective date of such decertification or amendment, and with respect to individuals participating in urban homestead programs under this Act.
    (f) Except as otherwise provided in Section 5.4.1, with respect to business enterprises (or expansions thereof) which are proposed or under development within a Zone at the time of a decertification or an amendment reducing the length of the term of the Zone, or excluding from the Zone area the site of the proposed enterprise, or an ordinance reducing or eliminating tax benefits in a Zone, such business enterprise shall be entitled to the benefits previously applicable within the Zone for the original stated term of the Zone, if the business enterprise establishes:
        (i) that the proposed business enterprise or
    
expansion has been committed to be located within the Zone;
        (ii) that substantial and binding financial
    
obligations have been made towards the development of such enterprise; and
        (iii) that such commitments have been made in
    
reasonable reliance on the benefits and programs which were to have been applicable to the enterprise by reason of the Zone, including in the case of a reduction in term of a zone, the original length of the term.
    In declaratory judgment actions under this paragraph, the Department and the designating municipality or county shall be necessary parties defendant.
(Source: P.A. 90-258, eff. 7-30-97.)