S.C. Code Ann. § 9-3-580

There are hereby authorized to be appropriated annually to the contribution fund, in addition to the contributions collected and paid into the contribution fund under Sections 9-3-510 to 9-3-540, to be available for the purposes of Section 9-3-570 until expended, such additional sums as are found to be necessary in order to make the payments to the Secretary of the Treasury which the State is obligated to make pursuant to an agreement entered into under Sections 9-3-110 and 9-3-120. The State agent shall submit to each regular session of the legislature, at least ninety days in advance of the beginning of such session, an estimate of the amounts authorized to be appropriated to the contribution fund by this section for the next appropriation period.