5 ILCS 75/2.1
Notwithstanding Section 2, a bill passed after May 31, 1994 but before July 1, 1994 that becomes a law before the effective date of this Section and provides for an effective date in the terms of the bill shall become effective on that date if that date is the same as or subsequent to the date the bill becomes a law; if the effective date provided in the terms of the bill is prior to the date the bill becomes a law then the date the bill becomes a law shall be the effective date.
Notwithstanding Section 2, a bill passed after May 31, 1994 but before July 1, 1994 that becomes law on or after the effective date of this Section shall become effective on July 1, 1995 unless the General Assembly by a vote of three-fifths of the members elected to each house provides for an earlier effective date in the terms of the bill or unless the General Assembly provides for a later effective date in the terms of the bill; provided that if the effective date provided in the terms of the bill is prior to the date the bill becomes a law then the date the bill becomes a law shall be the effective date.
5 ILCS 75/2.1