S.C. Code § 11-35-3305
With the approval of the appropriate chief procurement officer, and in accordance with any applicable regulations, a procurement officer may establish contracts providing for an indefinite quantity, within state maximum or minimum limits, of specified supplies, service, or information technology, to be furnished during a fixed period, and that provide for the issuance of orders for delivery or performance of individual requirements during the period of the contract. The appropriate chief procurement officer may establish the contracts on behalf of any governmental body or for use by any public procurement unit.
S.C. Code § 11-35-3305
2019 Act No. 41, Section 80, provides as follows:
"SECTION 80. This act takes effect upon approval by the Governor and applies to solicitations issued after that date."