35 years if retirement is in 1997 or before;
34 years if retirement is in 1998;
33 years if retirement is in 1999;
32 years if retirement is in 2000;
31 years if retirement is in 2001;
30 years if retirement is in 2002 or later.
A participant with 8 or more years of service after September 1, 1941, is entitled to a retirement annuity on or after attainment of age 55.
A participant with at least 5 but less than 8 years of service after September 1, 1941, is entitled to a retirement annuity on or after attainment of age 62.
A participant who has at least 25 years of service in this system as a police officer or firefighter is entitled to a retirement annuity on or after the attainment of age 50, if Rule 4 of Section 15-136 is applicable to the participant.
40 ILCS 5/15-135