S.C. Code Ann. § 42-15-10: State law under which claim is authorized to be filed.

Any employee covered by the provisions of this title is authorized to file his claim under the laws of the state where he is hired, the state where he is injured, or the state where his employment is located. If an employee shall receive compensation or damages under the laws of any other state, nothing contained in this section shall be construed to permit a total compensation for the same injury greater than that provided in this title.