S.C. Code Ann. § 1-23-110
(A) Before the promulgation, amendment, or repeal of a regulation, an agency shall:
(1) give notice of a drafting period by publication of a notice in the State Register. The notice must include:
(3) give notice of a public hearing at which the agency will receive data, views, or arguments, orally and in writing, from interested persons on proposed regulations by publication of a notice in the State Register if requested by twenty-five persons, by a governmental subdivision or agency, or by an association having not less than twenty-five members. The notice must include:
(B) Notices required by this section must be mailed by the promulgating agency to all persons who have made timely requests of the agency for advance notice of proposed promulgation of regulations.
[Until July 1, 2008, subsection (C) reads as follows:]
(C) The agency shall consider fully all written and oral submissions respecting the proposed regulation.
[Effective July 1, 2008, subsection (C) reads as follows:]
(C)