S.C. Code § 30-5-90
The register of deeds is required to record in the order of the times at which they may be brought to his office, all marriage settlements and all conveyances and mortgages, renunciations of dower and other writings concerning the titles to lands situate in his county which may be lodged with him to be recorded if the execution of any such writing shall be proved by affidavit of a subscribing witness, or otherwise, as herein provided. Every such writing shall be recorded within thirty days after its lodgment and the recording shall bear even date with the lodgment. On every such writing shall be endorsed a certificate, to be signed by the register or his deputy, specifying the time when and book and page where it was recorded.
S.C. Code § 30-5-90
2022 Act No. 213, Section 4, provides as follows:
"SECTION 4. If a quo warranto action is brought in accordance with Section 15-63-60 alleging (a) a register of deeds has a pattern of failing to record in the time and manner prescribed in Section 30-5-90, and (b) the pattern of failing to record occurred only prior to the effective date of this act, then the register of deeds may assert as an affirmative defense to the action that, on the date the action is filed and for thirty consecutive days thereafter, no properly delivered and executed document remains unrecorded in the office for more than thirty days after its receipt."
Code Commissioner's Note
1997 Act No. 34, Section 1, directed the Code Commissioner to change all references to "Register of Mesne Conveyances" to "Register of Deeds" wherever appearing in the 1976 Code of Laws.