O.C.G.A. § 15-6-91

All local legislation in effect on April 1, 1973, or enacted subsequent to April 1, 1973, and affecting compensation for clerks of superior courts of the various counties shall be of full force and effect except where such local legislation provides for a salary lower than the salary provided in Code Sections 15-6-88 through 15-6-90 and this Code section, in which event such Code sections shall prevail.