S.C. Code Ann. § 40-33-920
An applicant who does not pass the first examination may repeat the examination within one year of taking the examination as provided by the board in regulation. An applicant who does not pass the examination within one year of first taking the examination must provide evidence satisfactory to the board of remediation before reexamination. An applicant who has not passed the examination within three (3) years of first taking the examination must requalify to take the examination as provided by the board in regulation.