# West Virginia — State Residential Radon Disclosure, Testing, and Certification Requirements For West Virginia, disclosure required is No state radon disclosure requirement in real estate transactions; testing mandated is Yes; Division of Health must perform radon testing in new schools within one year of occupancy and at least once every five years thereafter; professional certification required is Yes; state licensing required for radon testers, mitigators, and laboratories; action level pci l is No state-specific action level; state must establish standards for safe levels of radon in public school buildings; school testing required is Yes; radon testing in new schools within one year of occupancy and at least once every five years thereafter, recorded from its source on 2026-08-15. - **jurisdiction:** West Virginia - **disclosure required:** No state radon disclosure requirement in real estate transactions - **testing mandated:** Yes; Division of Health must perform radon testing in new schools within one year of occupancy and at least once every five years thereafter. _(verified: appears in the quote below)_ - **professional certification required:** Yes; state licensing required for radon testers, mitigators, and laboratories. - **action level pci l:** No state-specific action level; state must establish standards for safe levels of radon in public school buildings. _(verified: appears in the quote below)_ - **school testing required:** Yes; radon testing in new schools within one year of occupancy and at least once every five years thereafter. _(verified: appears in the quote below)_ - **statute citation:** West Virginia Code §§ 18-9E-3, 16-34-1 et seq. ## What the source says > Requires the Division of Health to perform radon testing in new schools within one year of occupancy and at least once every five years thereafter. Requires the state to establish standards for safe levels of radon in public school buildings and requires mitigation if testing reveals high radon levels. ## 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/).