S.C. Code Ann. § 42-5-30: Employer shall file evidence of compliance with Title.

Every employer accepting the compensation provisions of this title shall file with the commission, in form prescribed by it, annually or as often as may be necessary evidence of his compliance with the provisions of Section 42-5-20 and all others relating thereto. In the event an employer shall insure his liability under this title with an insurance carrier, the insurance carrier shall be required to make the necessary filings.