(a) General rule.--Every annuitant who is in receipt of a superannuation, withdrawal or disability annuity, shall continue to receive such annuity and beginning July 1, 1979, any annuitant who retired on or prior to July 1, 1978, shall receive a cost-of-living supplement determined as a percentage applied to the retirement annuity as of June 30, 1979. Such cost-of-living supplement shall be payable under the same terms and conditions as provided under the option plan in effect as of June 30, 1979.

(b) Cost-of-living adjustment factors.--The percentage which is to be applied in the determination of the cost-of-living supplements shall be determined on the basis of the effective date of retirement payable on the first $12,000 of annuity received per year. The applicable percentage factors are:

(c) Withdrawal annuitants.--The cost-of-living supplement as determined in subsection (b) shall not be payable to an annuitant receiving a withdrawal annuity prior to the first day of July coincident with or following his attainment of superannuation age.

(d) Deleted by 1979, Dec. 18, P.L. 566, No. 130, § 1.

(e) Supplement enacted after death of member.--No supplement enacted after the death of the member shall be payable to the beneficiary or survivor annuitant of such deceased former school employee, except when the effective date of the supplement shall predate the death of the member by virtue of retroactivity of the supplement.