Service of all pleadings or notices in all hearings and proceedings pending before the commission, except service of the processes provided for by Section 58-9-1040, may be made personally or by mail as the commission may direct.
Service of pleadings or notices
S.C. Code Ann. § 58-9-1100, under Title 58, Chapter 9.
S.C. Code Ann. § 58-9-1100