S.C. Code Ann. § 40-3-320: Issuance of building permits.

The building official or other authority charged with the responsibility of issuing building or other similar permits of any county, municipality, or other subdivision, before issuing the permit, must be in possession of a sealed set of plans and specifications for which the seal of a registered architect is required and to verify that the architect who sealed the architectural plans and specifications is an architect registered in South Carolina.