Section 40 ILCS 5/5-175 - Contributions by city for prior service annuities and pensions under former actsEach city shall contribute annually, from the sum produced by the tax levy herein authorized, all sums required for the purposes of this Article other than those stated in this Section. The balance of the sum produced by the tax levy shall be applied:
(a) For the payment of prior service annuities and widow's prior service annuities, and all annuities, pensions and benefits which have been or which shall be allowed under "An Act to provide for the setting apart, formation and disbursements of a police pension fund in cities having a population exceeding two hundred thousand inhabitants", approved June 29, 1915, as amended; also for the purpose of paying that part of any annuity for which reserves from contributions by the policeman and the city are not provided under this Article, including that part of the annuity described in Section 5-127, 5-132, 5-136, 5-145, and 5-167 and 5-167.4 for which monies are not provided in this Article, and to make possible the transfer of reserves from the investment and interest reserve to other reserves of the fund, as provided in this Article.(b) Amounts contributed by the city for the purposes of this section shall be credited to the prior service annuity reserve. When the balance of that reserve equals the liabilities chargeable thereto (including in addition to all other liabilities of such reserve, the present value, according to the American Experience Table of Mortality, and interest at the rate of 4% per annum, or according to the Combined Annuity Mortality Table and interest at the rate of 4% per annum, whichever is applicable, of all annuities present or prospective, chargeable to the prior service annuity reserve) the city shall cease to contribute the sum no longer required for the purposes indicated in paragraph (a) of this section; provided, if at any time the balance of the investment and interest reserve is not sufficient to permit a transfer from such reserve to any other reserve of the fund, in accordance with the provisions of this Article, the city shall, as soon as possible and practicable thereafter, contribute sums sufficient to make possible such transfer.(c) If by reason of annexation of territory and the employment by the city of any policeman then employed in the annexed territory, after the city has ceased to make contributions under this section, contributions to provide prior service and widow's prior service annuity for such policeman become necessary for such purposes, the city shall, as soon as possible and practicable thereafter, contribute sums sufficient to provide such annuities.