S.C. Code § 59-21-360
In order to guide the Board in passing upon requests for the use of grants, the county boards of education of the respective counties shall prepare a survey of necessary capital improvements or a plan for tax relief on school indebtedness within the operating unit. Such surveys shall show existing facilities, desirable consolidations, the new construction and new facilities necessary and desirable for the efficient operation of the public schools of the county and a plan of tax reduction in the school district or operating unit by use of such funds in retiring any outstanding indebtedness for school facilities. The Board may, in its discretion, deny all applications for the use of funds of the public school building fund from any county until such time as an acceptable and reasonably satisfactory plan, looking particularly to efficiency through consolidations of school districts, has been submitted by the county board of education and all applications from school districts or operating units shall conform to the plan of the county board of education.
S.C. Code § 59-21-360