S.C. Code § 4-23-1000
The General Assembly finds that a certain portion of Darlington County primarily consisting of Interstate 95 from the Florence County line northward to Exit 169 in Darlington County is presently served by fire departments in Florence County because no fire department in Darlington County provides service to this area. This therefore presents concerns for the safety and well-being of citizens residing and traveling in this area in addition to placing additional burdens on fire personnel in Florence County which are called on to provide fire service in this area. The General Assembly has therefore determined to create a joint county fire district in the same manner other joint county fire districts have been established pursuant to this chapter, consisting of areas in two counties, to solve this problem, and to provide fire service to all areas of the district on the most economically feasible basis possible.
S.C. Code § 4-23-1000