On January 1, 2011, the Illinois legislature established two sets of pension eligibility requirements. Members who joined CTPF or a qualified reciprocal system prior to January 1, 2011, are Tier 1. Members who joined CTPF on or after January 1, 2011, are Tier 2.
The pension calculation for both tiers is the same, but the retirement age and method for calculating the final average salary are different. Click here to view a chart comparing Tier 1 to Tier 2 Pensions.