S.C. Code Ann. § 58-17-150
Whenever, in the judgment of the Commission, it shall appear that repairs are necessary upon any such railroad or that any addition to the rolling stock or any enlargement of, or improvement in, the stations or station houses, any modification in the rates of fare for transporting freight or passengers or any change in the mode of operating the road and conducting its business is reasonable and expedient in order to promote the security, convenience and accommodation of the public, the Commission shall give information in writing to the corporation of the repairs, additions, improvements or changes which it adjudges to be proper. If the company shall fail, within sixty days, to adopt the suggestions of the Commission, it shall take legal proceedings as it may deem expedient and may call upon the Attorney General to institute and conduct such proceedings. The power herein conferred upon the Commission shall be sufficient to require of common carriers the establishment and maintenance of terminal facilities, the extension of pass tracks, sidetracks and other than industrial tracks and all other improvements and changes which seem reasonable and expedient to the Commission.
Any railroad subject to the jurisdiction of the commission may retire any team track within this State upon showing that the track has not been used for at least two years. Before any track is retired for nonuse, the railroad shall give thirty days' written notice to the commission. The notice must be accompanied by a fee of fifty dollars and an affidavit of the railroad's agent or employee having personal knowledge of the fact that the track has not been used by the public during the two-year period immediately preceding the retirement date of the track.