S.C. Code § 42-9-430
Whenever a dispute arises between two or more parties as to which party is liable for the payment of workers' compensation benefits to an injured employee pursuant to the provisions of this title and there is no genuine issue of material fact as to the employee's employment, his average weekly wage, the occurrence of an injury, the extent of the injury, and the fact that the injury arose out of and in the course of the employment, the hearing commissioner may, in his discretion, require the disputing parties involved to pay benefits immediately to the employee and to share equally in the payment of those benefits until it is determined which party is solely liable, at which time the liable party must reimburse all other parties for the benefits they have paid to the employee with interest at the legal rate of interest provided in Section 34-31-20(A).
S.C. Code § 42-9-430