S.C. Code Ann. § 57-25-810

In an effort to promote and assist South Carolina facilities that have an interest in educating, sharing, and selling their programs and products to the general public, the Department of Transportation is directed to create and supervise a coordinated, self-funded, statewide program related to providing directional signs along certain of the state's rural conventional highways and noninterstate scenic byways leading to agritourism and tourism-oriented facilities. The statewide program shall be operated according to standards and regulations consistent with the Manual on Uniform Traffic Control Devices authorized to be adopted and promulgated by the Department of Transportation. The standards and regulations may provide for the use of official logos developed by the Department of Parks, Recreation and Tourism and the Department of Agriculture in compliance with the federal Manual on Uniform Traffic Control Devices. The standards and regulations also may provide for cooperative agreements between the department and private interests for the administration of the program and for the use and display of names for tourism and agritourism information signs on the highway right of way.