40 ILCS 5/3-145
Whenever the electors of the municipality, equal in number to 5% of the number of legal votes cast at the last preceding general municipal election, petition the city, village or town clerk to submit the proposition whether that municipality shall adopt this Article, the officer to whom the petition is addressed shall certify the proposition to the proper election officials who shall submit the proposition in accordance with the general election law at a regular election in the municipality provided that notice of the referendum, if held before July 1, 1999, has been given in accordance with the provisions of Section 12-5 of the Election Code in effect at the time of the bond referendum, at least 10 and not more than 45 days before the date of the election, notwithstanding the time for publication otherwise imposed by Section 12-5. Notices required in connection with the submission of public questions on or after July 1, 1999 shall be as set forth in Section 12-5 of the Election Code. If the proposition is not adopted at that election, it may be submitted in like manner at any regular election thereafter. The proposition shall be substantially in the following form:
Shall the city (or village or incorporated town) of.... adopt Article 3 of the "Illinois Pension Code", pertaining to the creation of a police pension fund?
YES
NO
If a majority of the votes cast on the proposition is for the proposition, this Article is adopted in that municipality.
If the conditions of this subsection (b) are met and the closed fund contains assets, those assets shall be transferred to the municipality for its general corporate purposes.
If a municipality that terminates participation under this Article in accordance with this subsection (b) wants to reinstate the fund, then the proposition to re-adopt the Article must be submitted to and approved by the voters of the municipality in the manner provided in subsection (a).
40 ILCS 5/3-145