75 ILCS 16/35-10

(a) The annual public library tax may be increased to not more than 0.60% if the voters of the district determine and approve the increase by a majority vote of those voting upon the question at any regular election. The question shall be submitted by the proper election authority pursuant to an ordinance or pursuant to a petition served upon the secretary and bearing not fewer than 100 signatures of voters residing within the district. The question shall be in substantially the following form: Shall the annual public library tax rate for (name of public library district), (location), Illinois, be established at (rate)% of full, fair cash value instead of at (rate)%, the maximum rate otherwise applicable to the next taxes to be extended? (b) Voter approval of an increase under a prior law shall satisfy the requirements of this Section.