S.C. Code Ann. § 54-7-700
(A) The institute may issue an exclusive license for the excavation or disturbance of submerged archaeological historic property and submerged paleontological property on submerged lands over which the State has sovereign control to any person or entity for the time and under the conditions as the institute considers appropriate. After an agreement has been entered into pursuant to Section 54-7-650(B), licenses may be issued if the institute determines that:
(B) The institute may not issue an exclusive license to a person or entity seeking title to a submerged archaeological historic property or submerged paleontological property or a portion of such property, or to a person or entity seeking to utilize a submerged archaeological historic property or submerged paleontological property for commercial salvage or other income-producing purposes, unless:
(3) the institute finds one or more of the following conditions met:
(D)