S.C. Code Ann. § 57-5-1080: Permit required to open private driveway or side-road entrance or exit to primary highway.

On all highways or sections of highways in the State highway primary system not designated as controlled-access facilities, it shall be unlawful for any person to open up, construct or reconstruct any private driveway or side-road entrance or exit thereto which is intended for use by any vehicles in entering or leaving such highway unless a permit for such driveway or side-road entrance or exit shall have been obtained from the Department.