25 ILCS 75/35
Whenever a bill is amended on the floor of either house in a manner as to bring it within the description of bills set forth in Section 5, a majority of that house may propose that no action be taken upon the amendment until the sponsor of the amendment presents a home rule note to the members.
(from Ch. 63, par. 42.91-35)
(Source: P.A. 87-229.)