Georgia Code Title 47. Retirement and Pensions § 47-1-84

(a) Notwithstanding any other provision of this title to the contrary, the board of trustees of a retirement or pension system may modify a request by a plan member to make a contribution to the public retirement or pension system if the amount of the contribution would exceed the limits provided under Section 415 of the federal Internal Revenue Code by using the following methods:

(b) For any plan member who first became a plan member in the public retirement or pension system before January 1, 1998, the limitation of Section 415(c)(1) of the federal Internal Revenue Code shall not be applied to reduce the amount of permissive service credit which may be purchased to an amount less than the amount which was allowed to be purchased under state law on August 5, 1997.