35 ILCS 120/1k
Aircraft maintenance facility means a facility operated by an interstate carrier for hire that is used primarily for the maintenance, rebuilding or repair of aircraft, aircraft parts and auxiliary equipment owned or leased by that carrier and used by that carrier as rolling stock moving in interstate commerce, and which: (1) will make an investment by the interstate carrier for hire of $400,000,000 or more in an enterprise zone; (2) will cause the creation of at least 5,000 full-time jobs in that enterprise zone; (3) is located in a county with population not less than 150,000 and not more than 200,000 and that contains 3 enterprise zones as of December 31, 1990; (4) enters into a legally binding agreement with the Department of Commerce and Economic Opportunity to comply with clauses (1) and (2) of this paragraph within a time period specified in the rules and regulations promulgated pursuant to this Section; and (5) is certified by the Department of Commerce and Economic Opportunity to be in compliance with clauses (1), (2), (3) and (4) of this Section. Any aircraft maintenance facility applying for the exemption stated in this Section shall make application to the Department of Commerce and Economic Opportunity in such form and providing such information as may be prescribed by the Department of Commerce and Economic Opportunity .
The Department of Commerce and Economic Opportunity shall determine whether the facility meets the criteria prescribed in this Section. If the Department of Commerce and Economic Opportunity determines that the facility meets the criteria, it shall issue a certificate of eligibility for exemption in the form prescribed by the Department of Revenue to the business enterprise operating the facility. The Department of Commerce and Economic Opportunity shall act upon certification request within 60 days after receipt of application, and shall file with the Department of Revenue a copy of each certificate of eligibility for exemption.
The Department of Commerce and Economic Opportunity shall promulgate rules and regulations to carry out the provisions of this Section, and to require that any business enterprise that is granted a tax exemption pay the exempted tax to the Department of Revenue if the business enterprise fails to comply with the terms and conditions of the certification, and pay all penalties and interest on that exempted tax as determined by the Department of Revenue.
The certificate of eligibility for exemption shall be presented by the business enterprise to its supplier when making the initial purchase of machinery and equipment for which an exemption is granted by Section 1m or Section 1n of this Act, or both, together with a certification by the business enterprise that the machinery and equipment is exempt from taxation under Section 1m or 1n of this Act. The exempt status, if any, of each subsequent purchase shall be indicated on the face of the purchase order.
35 ILCS 120/1k