S.C. Code Ann. § 33-19-700
(e) Within thirty days after the effective date of this chapter, the Secretary of State shall send to the president of each professional corporation at the association's address as shown in the association's most recent annual report on file in the office of the Secretary of State a written notice stating that:
(f) A professional corporation in existence on the effective date of this chapter is not in violation of this chapter for failure to file its articles of association with the Secretary of State as required by subsection (e) or to make any amendments to its articles of association required by this chapter or Chapters 1 through 17 of the South Carolina Business Corporation Act of 1988 until January 1, 1991. The failure of a professional corporation to file its articles of association and any necessary amendments to its articles of association by that date does not: