S.C. Code Ann. § 26-2-170

Electronic evidence of the authenticity of the official electronic signature and electronic seal of an electronic notary public of this State, if required, must be attached to, or logically associated with, a notarized electronic document transmitted to another state or nation and must be in the form of an electronic certificate of authority signed by the Secretary of State in conformance with any current and pertinent international treaties, agreements, and conventions subscribed to by the government of the United States.