# Vermont — State Residential Radon Disclosure, Testing, and Certification Requirements For Vermont, disclosure required is No state radon disclosure requirement in real estate transactions; testing mandated is Yes; public schools and approved independent schools must perform radon measurement by June 30, 2025 for any facility not tested in five or more years; professional certification required is No state-specific requirement; action level pci l is No state-specific action level; follows EPA recommended 4 pCi/L; school testing required is Yes; public and approved independent schools must perform radon measurement in accordance with ANSI/AARST protocols, recorded from its source on 2026-08-15. - **jurisdiction:** Vermont - **disclosure required:** No state radon disclosure requirement in real estate transactions - **testing mandated:** Yes; public schools and approved independent schools must perform radon measurement by June 30, 2025 for any facility not tested in five or more years. _(verified: appears in the quote below)_ - **professional certification required:** No state-specific requirement - **action level pci l:** No state-specific action level; follows EPA recommended 4 pCi/L - **school testing required:** Yes; public and approved independent schools must perform radon measurement in accordance with ANSI/AARST protocols. _(verified: appears in the quote below)_ - **statute citation:** Vermont H. 426, Act 72 (2021) ## What the source says > Requires that on or before June 30, 2025, each public school and approved independent school perform a radon measurement in accordance with ANSI/AARST protocols, for any school facility that has not had a test completed in five or more years. ## 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/).