S.C. Code Ann. § 59-101-50: Enrollment preference given to residents.

The colleges and other institutions of learning of this State supported in whole or in part by the State shall receive as students those applicants residing within the State in preference to those residing without; provided, however, that the applications of those residing within the State shall be filed with the president or secretary of such college or institution of learning at least thirty days before the opening of such college or institution.