S.C. Code Ann. § 57-25-700: Markers; agencies shall cooperate with Department of Transportation.

In order to carry out the provisions of this article and to make the highway a scenic highway, the Department of Transportation shall provide for appropriate markers designating the highway as the John C. Calhoun Memorial Highway, and the State Forestry Commission, the Department of Parks, Recreation and Tourism and all other state agencies or governmental entities shall cooperate with the Department of Transportation.