S.C. Code Ann. § 59-25-490: Depositions.

A party to a proceeding conducted pursuant to this chapter may depose a witness within or without the State and either by commission or de bene esse. The deposition must be taken pursuant and subject to the same provisions, conditions, and restrictions that apply to taking of similar depositions in actions brought in the court of common pleas. The same rules with respect to the giving of notice to the opposite party, the taking and transcribing of testimony, the transmission and certification of them and matters of practice relating to them apply.