605 ILCS 5/10-708
After the ordinance providing for the issuance of refunding revenue bonds has been passed, it shall be published in the same manner and form as is required for other ordinances of the municipality. The ordinance shall become effective 30 days after publication, which publication shall include a notice of (1) the specific number of voters required to sign a petition requesting that the question of the adoption of the ordinance be submitted to the electors of the municipality; (2) the time in which the petition must be filed; and (3) the date of the prospective referendum, unless within such period a petition is filed with the municipal clerk, signed by electors of the district numbering 10% or more of the number of registered voters in the district, asking that the question of issuing such bonds be submitted to the electors of the municipality. The municipal clerk shall provide a petition form to any individual requesting one. Upon the filing of such petition the municipal clerk shall certify the proposition to the proper election officials, who shall submit at an election such proposition in the manner provided by the general election law. Such referendum shall be held and notice given in accordance with the general election law. If a majority of the electors voting upon the proposition voted in favor of the issuance of the bonds, the ordinance shall be in effect; but if a majority of the votes cast are against the issuance of the bonds, the ordinance shall not go into effect.
605 ILCS 5/10-708