S.C. Code Ann. § 60-1-160

Every public, college, university, technical college, and state institutional library shall make an annual statistical report to the South Carolina State Library in a form as may be prescribed by the State Library. Reports must be made in a timely manner so that statistics may be published in the State Library's annual report. The State Library may require other reports as may be necessary from libraries receiving state and federal grants or participating in the statewide library network.