S.C. Code Ann. § 58-17-3410
All railway companies having railroad shops in this State at division points, where cars are regularly taken out of trains for repairs or construction work or where other railroad equipment is regularly made, repaired or constructed, shall furnish or construct a building or shed in such shops or yards, with a suitable and sufficient roof over the repair and construction track or tracks so as to provide that all men or employees employed in the construction and repair of locomotives, cars, trucks or other railroad equipment, excepting slight or minor repairs or repairs done in an emergency, shall be under shelter and protected during snow, rain, sleet, hot sunshine and other inclement weather. The Public Service Commission may direct the points at which sheds shall be erected and the character of the sheds after a hearing of which public notice shall have been given. Any railroad found guilty of violating the provisions of this section shall be subject to a fine of fifty dollars per day for every day of such violation.