S.C. Code Ann. § 39-25-130
(b) The Commissioner, whenever public health or other considerations in the State so require, is authorized to adopt, amend, or repeal regulations whether or not in accordance with regulations promulgated under the Federal act, prescribing therein tolerances for any added poisonous or deleterious substances, for food additives, for pesticide chemicals in or on raw agricultural commodities, or for color additives, including, but not limited to, zero tolerances, and exemptions from tolerances in the case of pesticide chemicals in or on raw agricultural commodities, and prescribing the conditions under which a food additive or a color additive may be safely used and exemptions where such food additive or color additive is to be used solely for investigational or experimental purposes, upon his own motion or upon the petition of any interested party requesting that such a regulation be established. It shall be incumbent upon such petitioner to establish by data submitted to the Commissioner that a necessity exists for such regulation, and that its effect will not be detrimental to the public health. If the data furnished by the petitioner is not sufficient to allow the Commissioner to form an opinion, he may require additional data to be submitted and failure to comply with the request shall be sufficient grounds to deny the request. In adopting, amending, or repealing regulations relating to such substances the Commissioner shall consider among other relevant factors, the following which the petitioner, if any, shall furnish: