Payments to the designated retirement systems under this Section received after the effective date of this amendatory Act of the 98th General Assembly, and any investment earnings attributable to such payments, do not reduce and do not constitute payment of any portion of the required State contribution under Article 2, 14, 15, 16, or 18 of the Illinois Pension Code in the current fiscal year. Such amounts shall not reduce, and shall not be included in the calculation of, the required State contribution under Article 2, 14, 15, 16, or 18 of the Illinois Pension Code in any future fiscal year, until the designated retirement system has reached the targeted funding ratio as prescribed by law for that retirement system. Such payments may be invested in the same manner as other assets of the designated retirement system and shall be used in the calculation of the system's funding ratio for the purposes of this Section and Section 20 of this Act. Payments under this Section may be used for any associated administrative costs.
30 ILCS 122/25