S.C. Code Ann. § 50-18-270: Intentional release of imported species into public waterways; penalties.

(A) Except as provided in this subsection it is unlawful to place or release intentionally any species imported from another state or jurisdiction into public waters in this State without a permit issued by the department. This section does not apply to the use of live bait. The department may grant permits at no cost to allow permitted aquaculturists to release aquacultured products into the public waters of this State as a part of a stocking program conducted or approved by the department.

(B) A person who violates this section is guilty of a misdemeanor and, upon conviction, must be fined not less than one thousand dollars and not more than five thousand dollars or imprisoned for not more than thirty days. In addition to any penalty the presiding magistrate may order restitution to the department.

(C) A person who violates this section for a second or subsequent offense within three years of a first offense must be fined five thousand dollars, no part of which may be suspended, or imprisoned for up to one year, or both. In addition to any penalty the presiding judge may order restitution to the department.