10 ILCS 5/7-19
The primary ballot of each political party for each precinct shall be arranged and printed substantially in the manner following:
President of the United States, State offices, congressional offices, delegates and alternate delegates to be elected from the State at large to National nominating conventions, delegates and alternate delegates to be elected from congressional districts to National nominating conventions, member or members of the State central committee, trustees of sanitary districts, county offices, judicial officers, city, village and incorporated town offices, town offices, or of such of the said offices as candidates are to be nominated for at such primary, and precinct, township or ward committeepersons . If two or more columns are used, the foregoing offices to and including member of the State central committee shall be listed in the left-hand column and Senatorial offices, as defined in Section 8-3, shall be the first offices listed in the second column.
Below the name of each office shall be printed in small letters the directions to voters: "Vote for one"; "Vote for not more than two"; "Vote for not more than three". If no candidate or candidates file for an office and if no person or persons file a declaration as a write-in candidate for that office, then below the title of that office the election authority instead shall print "No Candidate".
Next to the name of each candidate for delegate or alternate delegate to a national nominating convention shall appear either (a) the name of the candidate's preference for President of the United States or the word "uncommitted" or (b) no official designation, depending upon the action taken by the State central committee pursuant to Section 7-10.3 of this Act.
Below the name of each office shall be printed in capital letters the names of all candidates, arranged in the order in which their petitions for nominations were filed, except as otherwise provided in Sections 7-14 and 7-17 of this Article. Opposite and in front of the name of each candidate shall be printed a square and all squares upon the primary ballot shall be of uniform size. The names of each team of candidates for Governor and Lieutenant Governor, however, shall be printed within a bracket, and a single square shall be printed in front of the bracket. Spaces between the names of candidates under each office shall be uniform and sufficient spaces shall separate the names of candidates for one office from the names of candidates for another office, to avoid confusion and to permit the writing in of the names of other candidates.
Where voting machines or electronic voting systems are used, the provisions of this Section may be modified as required or authorized by Article 24 or Article 24A, whichever is applicable.
10 ILCS 5/7-19