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Mandated Disclosures · 6% of Exam

Radon Disclosure

Definition

Radon disclosure involves informing buyers about the presence or potential presence of radon gas in a property. Radon is a naturally occurring radioactive gas that can accumulate in buildings and is the second leading cause of lung cancer.

Example

A home inspection reveals radon levels of 6 pCi/L in the basement, above the EPA action level of 4 pCi/L. The buyer requests a radon mitigation system as a condition of the purchase. The seller installs a sub-slab depressurization system for $1,500, reducing radon levels to 1.2 pCi/L.

Exam Tip

Know that the EPA action level for radon is 4 pCi/L. Radon is a naturally occurring gas, not a man-made pollutant. It is the second leading cause of lung cancer (after smoking). Sellers must disclose known radon test results in most states. Radon is MITIGABLE—it can be reduced to safe levels.

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Frequently Asked Questions

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