The amendments to Sections 2-119.1 and 2-126 of this Code made by this amendatory Act of 1993 shall apply to persons who are active contributors to this System on or after November 30, 1992. A person who was an active contributor to the System on November 30, 1992 but is no longer an active contributor may apply for any additional benefits authorized by those amendments until 60 days after the effective date of this amendatory Act of 1993; if the person is an annuitant, the resulting increase in annuity shall begin to accrue on the first day of the month following the month in which application for the benefit and any required contribution are received by the System.
40 ILCS 5/2-161