S.C. Code Ann. § 6-9-20
Municipalities and counties may establish agreements with other governmental entities of the State to issue permits and enforce building codes in order to provide the services required by this chapter. The South Carolina Building Codes Council may assist in arranging for municipalities, counties, or consultants to provide the services required by this chapter to other municipalities or counties if a written request from the governing body of the municipality or county is submitted to the council. If a municipality or county determines that it is unable to arrange for services for any annual period at costs totally within the schedule of fees recommended in the appendixes to the building codes referred to in Section 6-9-50, the municipality or county shall submit an affidavit to the council to be exempt from the requirements of this chapter. If such an affidavit is submitted, the municipality or county is exempt from the requirements of this chapter, which exemption is effective until such time as it becomes financially feasible for a county or municipality to provide the services, or five years, whichever is less. A county or municipality may renew its affidavit at the end of five years and at each five-year interval thereafter if it makes another determination that it cannot arrange for services at costs totally within the schedule of fees recommended in the building codes referred to in Section 6-9-50.