S.C. Code § 22-5-910
2016 Act No. 132, Section 6, provides as follows:
"SECTION 6. This act takes effect ninety days after approval by the Governor. This act applies retroactively to allow for the expungement of offenses charged, discharged, dismissed, or nolle prossed prior to the effective date of this act, and persons convicted or found not guilty prior to the effective date of this act."