(40 ILCS 5/18-140) (from Ch. 108 1/2, par. 18-140)
    Sec. 18-140. To certify required State contributions and submit vouchers.
    (a) The Board shall certify to the Governor, on or before November 15 of each year until November 15, 2011, the amount of the required State contribution to the System for the following fiscal year and shall specifically identify the System's projected State normal cost for that fiscal year. The certification shall include a copy of the actuarial recommendations upon which it is based and shall specifically identify the System's projected State normal cost for that fiscal year.
    On or before November 1 of each year, beginning November 1, 2012, the Board shall submit to the State Actuary, the Governor, and the General Assembly a proposed certification of the amount of the required State contribution to the System for the next fiscal year, along with all of the actuarial assumptions, calculations, and data upon which that proposed certification is based. On or before January 1 of each year beginning January 1, 2013, the State Actuary shall issue a preliminary report concerning the proposed certification and identifying, if necessary, recommended changes in actuarial assumptions that the Board must consider before finalizing its certification of the required State contributions. On or before January 15, 2013 and every January 15 thereafter, the Board shall certify to the Governor and the General Assembly the amount of the required State contribution for the next fiscal year. The Board's certification must note any deviations from the State Actuary's recommended changes, the reason or reasons for not following the State Actuary's recommended changes, and the fiscal impact of not following the State Actuary's recommended changes on the required State contribution.
    On or before May 1, 2004, the Board shall recalculate and recertify to the Governor the amount of the required State contribution to the System for State fiscal year 2005, taking into account the amounts appropriated to and received by the System under subsection (d) of Section 7.2 of the General Obligation Bond Act.
    On or before July 1, 2005, the Board shall recalculate and recertify to the Governor the amount of the required State contribution to the System for State fiscal year 2006, taking into account the changes in required State contributions made by this amendatory Act of the 94th General Assembly.
    On or before April 1, 2011, the Board shall recalculate and recertify to the Governor the amount of the required State contribution to the System for State fiscal year 2011, applying the changes made by Public Act 96-889 to the System's assets and liabilities as of June 30, 2009 as though Public Act 96-889 was approved on that date.
    By November 1, 2017, the Board shall recalculate and recertify to the State Actuary, the Governor, and the General Assembly the amount of the State contribution to the System for State fiscal year 2018, taking into account the changes in required State contributions made by this amendatory Act of the 100th General Assembly. The State Actuary shall review the assumptions and valuations underlying the Board's revised certification and issue a preliminary report concerning the proposed recertification and identifying, if necessary, recommended changes in actuarial assumptions that the Board must consider before finalizing its certification of the required State contributions. The Board's final certification must note any deviations from the State Actuary's recommended changes, the reason or reasons for not following the State Actuary's recommended changes, and the fiscal impact of not following the State Actuary's recommended changes on the required State contribution.
    (b) Unless otherwise directed by the Comptroller under subsection (b-1), the Board shall submit vouchers for payment of State contributions to the System for the applicable month on the 15th day of each month, or as soon thereafter as may be practicable. The amount vouchered for a monthly payment shall total one-twelfth of the required annual State contribution certified under subsection (a).
    (b-1) Beginning in State fiscal year 2025, if the Comptroller requests that the Board submit, during a State fiscal year, vouchers for multiple monthly payments for the advance payment of State contributions due to the System for that State fiscal year, then the Board shall submit those additional vouchers as directed by the Comptroller, notwithstanding subsection (b). Unless an act of appropriations provides otherwise, nothing in this Section authorizes the Board to submit, in a State fiscal year, vouchers for the payment of State contributions to the System in an amount that exceeds the rate of payroll that is certified by the System under this Section for that State fiscal year.
    (b-2) The vouchers described in subsections (b) and (b-1) shall be paid by the State Comptroller and Treasurer by warrants drawn on the funds appropriated to the System for that fiscal year.
    If in any month the amount remaining unexpended from all other appropriations to the System for the applicable fiscal year (including the appropriations to the System under Section 8.12 of the State Finance Act and Section 1 of the State Pension Funds Continuing Appropriation Act) is less than the amount lawfully vouchered under this Section, the difference shall be paid from the General Revenue Fund under the continuing appropriation authority provided in Section 1.1 of the State Pension Funds Continuing Appropriation Act.
(Source: P.A. 103-588, eff. 6-5-24.)