(40 ILCS 5/11-178) (from Ch. 108 1/2, par. 11-178)
    Sec. 11-178. Contributions by city for prior service annuities and other benefits. The city shall make contributions to provide prior service and widow's prior service annuities, and other annuities and benefits, as follows:
        1. To credit to the city contribution reserve such
amounts required from the city but not contributed by it for age and service and prior service annuities, and widow's annuities and widows' prior service annuities;
        2. To meet such part of any minimum annuity as shall
be in excess of the age and service annuity and prior service annuity, and to meet such part of any minimum widow's annuity in excess of the amount of widow's annuity and widow's prior service annuity;
        3. To provide a sufficient balance in the investment
and interest reserve to permit a transfer from that reserve to other reserves of the fund. Whenever the balance of the investment and interest reserve is not sufficient to permit a transfer from that reserve to any other reserve, the city shall contribute sums sufficient to make possible such transfer;
        4. An amount equal to the difference between (1) the
sum produced by the tax levy stated in Section 11-169 and (2) all sums required for the purposes of this Article 11 in accordance with the provisions of this Article 11 except those stated in this Section, shall be applied for purposes of this Section.
    Provided that if in any year such total sums together with all other sums required during such year for the other purposes of the fund, are in excess of the total amount contributed by the city during such year, the sums required for purposes other than those stated in this Section shall first be provided for. The balance shall then be applied for the purposes stated in this Section.
    All such contributions shall be credited to the prior service annuity reserve. When the balance of this reserve equals its liabilities (including in addition to all other liabilities, the present values of all annuities, present or prospective, according to the applicable mortality tables and rates of interest, but excluding any liabilities arising under Sections 11-133.3 and 11-133.4), the city shall cease to contribute the sum stated in this Section.
    If annexation of territory and the employment by the city of any person employed as a city laborer in any such territory at the time of annexation, after the city has ceased to contribute as herein provided, results in additional liabilities for prior service annuity and widow's prior service annuity for any such employee, contributions by the city for such purposes shall be resumed.
    Notwithstanding any provision in this Section to the contrary, the city shall not make a contribution for credit established by an employee under subsection (b) of Section 11-133.3.
(Source: P.A. 93-654, eff. 1-16-04.)