S.C. Code Ann. § 58-3-260
(A) For purposes of this section:
(C) The following communications are exempt from the prohibitions of subsection (B) of this section:
(5) where circumstances require, ex parte communications for scheduling, administrative purposes, or emergencies that do not deal with substantive matters or issues on the merits are authorized provided:
(6)
(a) subject to the provisions of Chapter 4 of Title 30, communications, directly or indirectly, regarding any fact, law, or other matter that is or can reasonably be expected to become an issue in a proceeding for the purposes of an allowable ex parte communication briefing if:
(8) subject to the provisions of Chapter 4 of Title 30, communications between and among commissioners regarding matters pending before the commission; provided, further, that any commissioner, hearing officer, or commission employee may receive aid from commission employees if the commission employees providing aid do not: