The retirement board may provide from interest income from investments in excess of normal requirements as determined by actuarial study, provided the retirement system is approaching actuarial soundness, annual cost-of-living adjustments to recipients of benefits which were in effect two years prior to the effective date of the cost-of-living adjustment, in an amount not to exceed two percent for each year from the effective date of the benefit.  Such cost-of-living adjustments shall not become effective and paid unless such excess funds are available and until the manner and amount of payment is approved by the board of the retirement system and the city council.

Acts 1982, No. 164, §1; Acts 1987, No. 609, §1; Designated from Acts 1990 No. 440, §1, by Acts 1991, No. 74, §3, eff. June 25, 1991.