25 ILCS 75/15
If the sponsor of a bill is of the opinion that no home rule note is necessary, any member of either house may request that a note be obtained, and in that case the matter shall be decided by a majority vote of those present and voting in the house of which he or she is a member.
(from Ch. 63, par. 42.91-15)
(Source: P.A. 87-229.)