S.C. Code § 46-25-710
The commission shall cause one or more analyses to be made annually of such commercial fertilizers sold, or offered for sale under the provisions of this chapter, as may be sampled under its direction and in accordance with such regulations as it may adopt. For this purpose, the commission, or a committee thereof, shall appoint or cause to be appointed a sufficient number of administrative personnel, inspectors, and chemists who shall procure and analyze and otherwise experiment with samples of such commercial fertilizers in accordance with the methods prescribed by the commission or its duly authorized agent and who shall perform such other duties as the commission may direct. The analyses of all officially drawn samples will be compiled annually and published as directed by the commission.
S.C. Code § 46-25-710