S.C. Code Ann. § 29-3-350

All registers of deeds and all clerks of court in counties in which the clerks are required to perform the duties of registers of deeds shall enter the word "canceled", together with the signature of the officer, upon the margin or across the indexes of real estate mortgages and chattel mortgages, respectively, when the real estate mortgage or chattel mortgage is duly canceled of record by the mortgagee or his assignee. The cancelation and signature must be entered in the margin opposite the names of the mortgagor and mortgagee, respectively, or across these names. A like cancelation, on the demand of the mortgagor or legal representative, must be made on mortgages heretofore canceled of record. In lieu of the above requirements, the register of deeds or clerk of court may insert an appropriate column on the same page in these indexes showing the book and page number, if any, of the satisfaction or cancelation. Upon failure of the register of deeds or clerk of court to comply with this section, in each instance he shall forfeit and pay to the mortgagor the sum of ten dollars to be recovered in any court of competent jurisdiction. Any clerk or other officer wilfully violating this section, upon conviction, must be fined not more than one hundred dollars or imprisoned not more than thirty days, in the discretion of the court, and the solicitor of each circuit shall see that the law is complied with or shall prosecute violators. Code Commissioner's Note 1997 Act No. 34, SECTION 1, directed the Code Commissioner to change all references to "Register of Mesne Conveyances" to "Register of Deeds" wherever appearing in the 1976 Code of Laws.