S.C. Code Ann. § 33-37-270: Approval by Secretary of State and filing of articles of amendment.

Within thirty days after any meeting at which an amendment of the charter has been adopted, articles of amendment signed and sworn to by the president, treasurer, and a majority of the directors, setting forth the amendment and the due adoption of the amendment, must be submitted to the Secretary of State, who shall examine them and, if he finds that they conform to the requirements of this chapter, shall so certify and endorse his approval on it. Thereupon, the articles of amendment must be filed in the Office of the Secretary of State, and no such amendment shall take effect until the articles of amendment have been filed as is required above.