S.C. Code Regs. § 24-25
After permanent foster care or guardianship has been effected for a child, the case shall continue to be reviewed every six months by a local review board. After the review board has received a copy of the signed permanent foster care agreement or a legal document granting guardianship, subsequent reviews may consist of a brief written statement from the responsible agency, child-caring facility, or residential group care home affirming that the child is still with the same foster family or in the same child-caring facility or residential group care home and that there have been no changes in the status of the case since the last detailed review. Whenever the status of a child in permanent foster care or guardianship changes, the responsible agency, child-caring facility or residential group care home shall notify the review board.
S.C. Code Regs. 24-25