Section 35 ILCS 636/5-20 - Imposition(a) On and after January 1, 2003, for municipalities with populations of less than 500,000, the tax authorized by this Act shall be imposed (except as provided in Sections 5-25 and 5-30 of this Act), amended, or repealed by an ordinance adopted by the municipality, which ordinance shall be filed by the municipality with the Department pursuant to the rules of the Department. (1) Any ordinance adopted by a municipality with a population of less than 500,000 which attempts to impose, amend or repeal the tax authorized by this Act shall be of no force and effect until properly filed with an appropriate form with the Department. (2) Any certified copy of an ordinance (i) filed with the Department prior to October 1, 2002 shall be effective with respect to gross charges billed by telecommunications retailers on or after January 1, 2003 and (ii) filed with the Department on or after October 1, 2002 and before April 1, 2003 shall be effective with respect to gross charges billed by telecommunications retailers on or after July 1, 2003. On and after April 1, 2003, any certified copy of an ordinance filed with the Department on or before September 20 or March 20 shall be effective with respect to gross charges billed by telecommunications retailers on or after the following January 1 or July 1, respectively. If the certified ordinance is filed with the Department on or before September 20, the Department shall determine by October 10 whether the ordinance meets the criteria under this Act. If the certified ordinance is filed with the Department on or before March 20, the Department shall determine by April 10 whether the ordinance meets the criteria under this Act. If the ordinance meets the criteria, the Department shall notify the telecommunications retailers via a posting on the Department's web site that the ordinance is approved and shall list the rate. For ordinances filed with the Department on or before September 20, notification must be made no later than October 10. For ordinances filed with the Department on or before March 20, notification must be made no later than April 10. (b) On and after January 1, 2003, for municipalities with populations of 500,000 or more, the tax authorized by this Act shall be imposed, amended, or repealed, and any authorized exemptions granted, by the adoption of an ordinance and notification to the telecommunications retailers. Amended by P.A. 093-0286, § 15, eff. 7/22/2003. P.A. 92-526, eff. 7-1-02.