S.C. Code Ann. Regs. 114-1010
A. Definitions.
B. General Requirements.
(1) Accrual Rights.
(a) For all assistance payments programs except those specified below, an applicant’s right to a money payment accrues on the earlier of the following dates, provided he was alive on such date and eligible insofar as is known:
(c) For the Optional Supplementation (OS) program, an eligible applicant accrues the right to an OS payment beginning with the later of the following dates:
(3) Overpayments. An overpayment occurs when an assistance payment is made in an amount greater than that to which the recipient is entitled, or when an assistance payment is made to an ineligible recipient. An overpayment may result from any one of the following circumstances.
(a) Agency error, as defined below:
(ii) Failure of the agency to follow up on information when there is an indication in the case record that a change in circumstances could be anticipated and it is later found that such change took place.
(iii) Failure of the agency to make a redetermination as scheduled.
(4) The assistance payments case record shall consist of, but not be limited to, the following documents: