S.C. Code Ann. § 40-47-1530
Registration requirement.
A person may not wilfully practice or offer to practice as a cardiovascular invasive specialist unless that person is registered by the department. A person who uses the title cardiovascular specialist in any advertisement, business card or letterhead, or billing document or who makes another verbal or written communication indicating that the person is a cardiovascular specialist or who acquiesces in that representation violates this section.