S.C. Code Ann. § 9-1-1780: Recomputation allowances of certain persons having thirty-five or more years of creditable service.

Effective July 1, 1969, any monthly retirement allowance which commenced prior to such date to or on account of a Class Two member who, at retirement or earlier death, had completed thirty-five or more years of creditable service but had not reached his sixty-fifth birthday shall be recomputed to reflect the deletion as of July 1, 1969 of the five-twelfths of one percent reduction previously applicable. Commencing July 1, 1969 the recomputed allowance, modified to reflect the election, if any, of an optional benefit under Section 9-1-1620, shall be payable.