Requires radon inspections by sellers for the sale of residential real property

This bill requires sellers to provide a radon test certificate and report to buyers before a binding residential real estate contract is signed, effective January 1, 2026. It makes any contract waiver of a buyer's right to radon inspection void and unenforceable. The law applies to standard residential sales but includes exemptions for transfers like family sales, estate settlements, government transactions, or divorces. It directly affects residential real estate sellers, buyers, and real estate agents who must inform parties about these requirements.