S.C. Code Ann. § 16-25-40
Any person who violates Section 16-25-20 after having previously been convicted of two violations of Section 16-25-20 or two violations of Section 16-25-65 or a violation of Section 16-25-20 and a violation of Section 16-25-65 is guilty of a misdemeanor and, upon conviction, must be fined not more than three thousand dollars or imprisoned not more than three years, or both.