S.C. Code Regs. § § 61-13.700.706
In instances when there have been no clients in a facility for any reason, for a period of ninety (90) days or more, the facility shall notify, in writing, the Department no later than the one-hundredth (100th) day following the date of discharge or transfer of the last active client. If the facility has no clients for a period longer than one (1) year, and there is a desire to reopen, the facility shall reapply to the Department and shall be subject to all licensing requirements at the time of that application, including Certificate of Need review and construction-related requirements for a new facility. Instances of zero census do not relieve the facility of the requirement to pay licensing fees that may be due during that time.
S.C. Code Regs. § 61-13.700.706