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service pursuant to authority issued under Part 121 or Part 129 of the Federal Aviation Regulations. The changes made to this paragraph (27) by Public Act 98-534 are declarative of existing law. It is the intent of the General Assembly that the exemption under this paragraph (27) applies continuously from January 1, 2010 through December 31, 2024; however, no claim for credit or refund is allowed for taxes paid as a result of the disallowance of this exemption on or after January 1, 2015 and prior to February 5, 2020 (the effective date of Public Act 101-629). (28) Tangible personal property purchased by a public-facilities corporation, as described in Section 11-65-10 of the Illinois Municipal Code, for purposes of constructing or furnishing a municipal convention hall, but only if the legal title to the municipal convention hall is transferred to the municipality without any further consideration by or on behalf of the municipality at the time of the completion of the municipal convention hall or upon the retirement or redemption of any bonds or other debt instruments issued by the public-facilities corporation in connection with the development of the municipal convention hall. This exemption includes existing public-facilities corporations as provided in Section 11-65-25 of the Illinois Municipal Code. This paragraph is exempt from the provisions of Section 3-75. (29) Beginning January 1, 2017 and through December 31, SB3019 Enrolled LRB104 20255 HLH 33706 b Public Act 104-0468