Oregon

What is the disclosure required for Oregon?

For Oregon, disclosure required is Yes; sellers of real property of up to four dwelling units must provide a seller's property disclosure statement including disclosure of any testing or treatment for radon gas; testing mandated is Yes; school districts must develop a plan for radon testing in any frequently occupied room in contact with the ground, with retesting at least once every 10 years; professional certification required is No state-specific licensing requirement for radon professionals; action level pci l is No state-specific action level; follows EPA recommended 4 pCi/L; statute citation is Oregon Revised Statutes §§ 105.462--.490, 332.341, .345, 332.331, .334, .337, 455.365, recorded from its source on 2026-08-15; source re-checked 2026-10-01.

Amends existing disclosure law to require sellers of real property consisting of up to four dwelling units to provide buyers with a seller's property disclosure statement, which includes disclosure of any testing of or treatment for formaldehyde, radon gas, mold, lead-based paint, or asbestos on the property.

— eli.org, retrieved 2026-08-15