S.C. Code Ann. § 50-18-150
A person outside of the State shall obtain an aquaculture permit before he sells, ships, or causes to be shipped into the State hybrids. A person who sells or ships hybrids to a person in South Carolina shall meet all requirements for sale. The department must be notified eight hours in advance of a shipment coming into the State of live hybrids or eggs of hybrids including the name and permit number of the receiver. The out-of-state permittee shall retain copies of invoices showing the date received, poundage, and receiver for three years. The permittee agrees to inspection during business hours or when employees are present.