S.C. Code § 29-5-23
Any person entering into a direct agreement with, or with the consent of, an owner for the improvement of real property may file with the clerk of court or register of deeds in the county or counties where the real property is situate a notice of project commencement. The notice of project commencement shall contain the following information:
The notice must be filed within fifteen days of the commencement of work and must be accompanied by a filing fee of fifteen dollars to be deposited in that county's general fund. The name and address of the contractor must be posted at the job site. A location notice also must be posted at the job site. The location notice must contain the following statement: "The contractor on the project has filed a notice of project commencement at the county courthouse. Sub-subcontractors and suppliers to subcontractors shall comply with Section 29-5-20 when filing liens in connection with this project." The failure to file a notice of project commencement shall render the provisions of Sections 29-5-20(B) and 29-5-60(B) inapplicable. The failure to file a notice of project commencement shall also render the provisions of Sections 29-5-440, 11-35-3030(2)(c), 57-5-1660(b), and 11-1-120, relating to the requirement of a notice of providing labor, materials, or rental equipment inapplicable for a claim against a payment bond furnished by a contractor holding a direct contractual agreement with an owner. The filing of a notice of project commencement shall not constitute a cloud, lien, or encumbrance upon, or defect to, the title of the real property described in the notice, nor shall it alter the aggregate amounts of liens allowable under Section 29-5-40, nor shall it affect the priority of any mortgage filed before or after the notice, nor shall it affect any future advances under any mortgage. The clerk of court or register of deeds in each county shall maintain a separate book and index of all notices of project commencements.
S.C. Code § 29-5-23
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.