(65 ILCS 5/6-4-3)
(from Ch. 24, par. 6-4-3)
Reconsideration - Passage over veto.
Every ordinance, which is returned to the council by the mayor shall be
reconsidered by the council. If, after such reconsideration, three-fifths
of all the aldermen then holding office on the city council agree to pass
an ordinance, resolution, or motion, notwithstanding the mayor's refusal to
approve it, then it shall be effective.
(Source: P.A. 76-746.)