# South Carolina — State Residential Radon Disclosure, Testing, and Certification Requirements For South Carolina, disclosure required is Yes; sellers of property of up to four dwelling units must provide a written disclosure statement disclosing environmental contamination including radon gas; testing mandated is No; professional certification required is No state-specific requirement; action level pci l is No state-specific action level; school testing required is No, recorded from its source on 2026-08-15. - **jurisdiction:** South Carolina - **disclosure required:** Yes; sellers of property of up to four dwelling units must provide a written disclosure statement disclosing environmental contamination including radon gas. _(verified: appears in the quote below)_ - **testing mandated:** No - **professional certification required:** No state-specific requirement - **action level pci l:** No state-specific action level - **school testing required:** No - **statute citation:** South Carolina Code §§ 27-50-10--110 ## What the source says > Requires sellers of property containing up to four dwelling units to provide purchasers with a written disclosure statement disclosing environmental contamination on the property, including the presence of radon gas, mold, lead-based paint, asbestos, methane gas, hazardous or toxic materials, and other environmental contamination. ## Source - https://www.eli.org/sites/default/files/files-pdf/2025%20Radon.pdf Last verified: 2026-08-15. Review by: 2027-08-15. Part of [State Residential Radon Disclosure, Testing, and Certification Requirements](https://referencesource.org/state-radon-disclosure-requirements/).