S.C. Code Ann. § 40-23-230
(E) A person who, as of the effective date of this section, possesses a current well driller license from the board, shall be eligible to receive an independent well driller license in one or more of the well drilling classes established by this chapter, if such licensee:
(F) A person who, as of the effective date of this section, is currently engaged in the business of installing pumps as defined in this chapter and who does not possess a current well driller license, shall be eligible to receive a pump installer license if such person:
(G)
(2) A person practicing as a public water distribution system operator, as of the effective date of this act, who does not qualify for licensure pursuant to subsection (G)(1) is eligible to receive a public water distribution system operator license that entitles the person to continue practicing at the work location where the person is practicing as of the effective date of Section 40-23-310, if the person: