S.C. Code § 44-7-1690
Notice of the approval by a county board of any intergovernmental loan agreement or subsidiary loan agreement must be published at least once in a newspaper having general circulation in each county by the respective county board prior to the execution of such agreements. With respect to a subsidiary loan agreement, the notice must set forth the action taken by the county board and the South Carolina Department of Health and Environmental Control pursuant to Section 44-7-1660. The intergovernmental loan agreement and subsidiary loan agreement must be filed with the clerk of court of the authorizing issuer and the clerk of court of the project county prior to the issuance of the bonds authorized thereby.
Any interested party may, within twenty days after the date of the publication of the notice, challenge the action taken by the county board of the authorizing issuer or the project county in approving the intergovernmental loan agreement by action de novo in the court of common pleas of the project county or the authorizing issuer.
Any interested party may, within twenty days after the date of the publication of the notice, challenge the action taken by the county board in approving the subsidiary loan agreement or the Department of Health and Environmental Control with respect to the hospital facilities by action de novo in the court of common pleas in any county where the hospital facilities are to be located.
S.C. Code § 44-7-1690