S.C. Code Ann. § 59-18-330
The State Board of Education, through the State Department of Education, shall develop, select, or adapt a first grade readiness test which is linked to the adopted grade one academic standards and a second grade readiness test which is linked to the adopted grade two academic standards. The first administration of this test must occur no later than the 2000-2001 school year. The purpose of the tests is to measure individual student readiness, and they are not to be used as an accountability measure at the state level. However, the grade two readiness test will serve as the baseline for grade three assessment.