All special purpose districts totally located within a county, which were in existence prior to March 7, 1973, and which have the statutory authority to annually levy taxes for maintenance and operation are authorized to increase their respective millage limitations upon the written approval of the governing body of the county in which they are located. Any increase above the statutory limitation must be approved each year.
Any such millage increase shall be levied and collected by the appropriate county auditor and county treasurer.
S.C. Code § 6-11-275