(40 ILCS 5/6-164.1) (from Ch. 108 1/2, par. 6-164.1)
    Sec. 6-164.1. Automatic annual increase; retirement on or before September 1, 1959.
    (a) A retired fireman, qualifying for minimum annuity or who retired from service with 20 or more years of service, on or before September 1, 1959, at age 50 or over shall have, in January of the year following the year he attains the age of 65, or in January, 1970, if he is then over age 65, his then fixed and payable monthly annuity increased by an amount equal to 2% of the original grant of annuity, for each year he received annuity payments after the year in which he attains age 65. An additional 2% increase in such fixed and payable original granted annuity shall accrue in each January thereafter.
    However, beginning January 1, 1996, the increases payable under this subsection (a) to a fireman born before January 1, 1945 shall be at the rate of 3% of the originally granted annuity amount, notwithstanding that the fireman terminated service prior to the effective date of this amendatory Act of 1995.
    (b) The provisions of subsection (a) of this Section apply only to a retired fireman eligible for such increases in his annuity if he contributed to the fund a sum equal to 1% of the final average monthly salary used in the computation of the annuity for each full year of credited service upon which his annuity was computed. All such sums contributed shall be placed in a Supplementary Payment Reserve and used for the purposes of such fund account.
    (c) Beginning with the monthly annuity payment due in July, 1982, the monthly annuity payment for any fireman who retired from the service before September 1, 1976 at age 50 or over with 20 or more years of service or who was granted duty disability benefits prior to September 1, 1957 and entitled to an annuity or duty disability benefits on July 1, 1975 shall be not less than $400.
    (d) The difference in amount between the minimum monthly annuity specified in subsection (c) and the minimum monthly annuity to which the fireman was entitled before July 1, 1975, in accordance with the provisions of Section 6-128.1, shall be paid as a supplement in the manner set forth in subsection (e).
    (e) To defray the annual cost of the increases indicated in the preceding part of this Section, the annual income accruing from investments held by this fund, above 4% a year, to the extent necessary and available to finance the cost of such increases for the following year, shall be transferred each year beginning with the year 1969 to a fund account designated as the Supplementary Payment Reserve from the Interest and Investment Reserve set forth in Section 6-203.
    If the money in the Supplementary Payment Reserve in any year arising from interest income above 4% a year as defined in this Section accruing in the preceding year; and the contributions by retired persons, are insufficient to make the total payments to all persons entitled to the annuity under this Section; and any investment earnings over 4% a year beginning with the year 1969 not previously used to finance such increases and transferred to the Prior Service Annuity Reserve, may be used to the extent necessary and available to provide sufficient funds to finance such increases for the current year. Such sums shall be transferred from the Prior Service Annuity Reserve. If the total money available in the Supplementary Payment Reserve from such sources are insufficient to make the total payments to all persons entitled to such increases for the year, a proportionate amount computed as the ratio of the money available to the total of all the payments specified for that year shall be paid to each person for that year.
    No part of any such increase under this Section is an obligation of the fund otherwise established under this Article 6.
(Source: P.A. 89-136, eff. 7-14-95.)