S.C. Code § 63-17-1830
On behalf of any obligee for whom the clerk of court is already providing services, or on application of a resident of this State, an obligee or obligor of a support order issued by this State, or an agency to whom the obligee has assigned support rights, the clerk of court shall promptly request the agency of another jurisdiction in which the obligor of a support order derives income to enter the order for the purpose of obtaining income withholding against the income. The clerk of court shall compile and transmit promptly to the agency of the other jurisdiction all documentation required to enter a support order for this purpose. The clerk of court also shall transmit immediately to the agency of the other jurisdiction a certified copy of any subsequent modifications of the support order. If the clerk of court receives notice that the obligor is contesting income withholding in another jurisdiction, it shall immediately notify the individual obligee of the date, time, and place of the hearings and of the obligee's right to attend.
S.C. Code § 63-17-1830