S.C. Code Ann. § 43-5-320

General assistance in the form of money payments may be made to persons who are essential to the welfare of aged, blind, or disabled persons receiving other forms of public assistance and who are unable to support themselves and would suffer unless so provided for. A recipient of such assistance must be unable to provide himself with the necessities of life, have insufficient means of his own for proper support and have no relative or other person able to provide and who is legally responsible for his maintenance or willing to provide therefor.