10 ILCS 5/10-11
2021 Illinois Compiled Statutes|Chapter 10 - ELECTIONS|10 ILCS 5/ - Election Code.|Article 10 - Making of Nominations in Certain Other Cases

 (from Ch. 46, par. 10-11)Sec. 10-11.         Any vacancy in the nomination of a new political party  candidate occurring prior to  the date of certification of candidates for the ballot  by the certifying board or officer must be filled prior to the date of certification.  The resolution to fill such  vacancy shall be sent by U.S. mail or personal delivery to the certifying  officer or board within 3 days of the action by which the vacancy was filled;  provided, if such resolution  is sent by mail and the U.S. postmark on the envelope containing such resolution  is dated prior to the expiration of such 3 day limit, the notice or resolution  shall be deemed filed within such 3 day limit.  Failure  to so transmit the notice or resolution within the time  specified in this Section shall authorize the certifying officer  or board to certify the original candidate.  Vacancies shall be filled  by the new political party officers.Any vacancy in nomination occurring after certification but prior to 15  days before a regular election shall be filled by the new political  party officers within  8 days after the event creating the vacancy in the manner heretofore prescribed.The resolution to fill a vacancy in nomination shall be duly  acknowledged before an officer qualified to take acknowledgements of deeds  and shall include, upon its face, the following information:(a) the name of the original nominee and the office vacated;(b) the date on which the vacancy occurred;(c) the name and address of the nominee selected to fill the vacancy and  the date of selection.The resolution to fill a vacancy in nomination shall be accompanied by a  Statement of Candidacy, as prescribed in Section 10-5, completed by the  selected nominee and a receipt indicating that such nominee has filed a  statement of economic interests as required by the Illinois Governmental Ethics Act.The provisions of Sections 10-8 through 10-10.1 relating to objections to  certificates of nomination and nomination papers, hearings on objections,  and judicial review, shall apply to and govern objections to resolutions  for filling a vacancy in nomination.Any vacancy in nomination occurring 15 days or less before a regular election  shall not be filled.  In this event the certification of the original candidate  shall stand and his name shall appear on the official ballot to be voted  at the election.A vacancy in nomination occurs when a candidate who has been nominated  under the provisions of Section 10-2 dies before the election, or declines  the nomination; provided that nomination may become vacant for other reasons.However, the provisions of this Section shall not apply to any vacancy  in nomination for a municipal office for which the Municipal Code, as now  or hereafter amended, provides a different method for filling such vacancy,  and the applicable provision of the Municipal Code shall govern in such cases.Any vacancy in a nomination by caucus of an established political party  for a township or municipal office shall be filled in accordance with Section  7-61 of this Code.For purposes of this Section, the words "certify" and "certification"  shall refer to the act of officially declaring the names of candidates  entitled to be printed upon the official ballot at an election and  directing election authorities to place the names of such candidates upon  the official ballot.  "Certifying officers or board" shall refer to the  local election official, election authority or the State Board of  Elections, as the case may be, with whom nomination papers, certificates of  nomination papers and resolutions to fill vacancies in nomination are filed  and whose duty it is to "certify" candidates.    (Source: P.A. 84-757.)