S.C. Code Ann. § 26-2-50: Requirements of the principal for an electronic notarization.

(A) An electronic notary public shall perform an electronic notarization only if the principal:

(1) appears in person before the electronic notary public at the time of notarization; and

(2) is personally known to the electronic notary or identified by the electronic notary through satisfactory evidence as defined in Chapter 1 of this title.

(B) In performing electronic notarial acts, an electronic notary public shall adhere to all applicable rules governing notarial acts provided in Chapter 1 of this title.