EPA and several partners including American Lung Association have outlined a strategy for preventing lung cancer deaths due to radon exposure. Exposure to radioactive radon gas is the second leading cause of lung cancer in the U.S. EPA aims to reduce high radon levels in 5 million homes, schools and childcare centers to prevent 3,200 lung cancer deaths annually by 2020.The National Radon Action Plan sets out strategies including requiring radon testing and reduction systems as standard practice in housing finance and insurance programs, and institutionalizing radon risk reduction through building code requirements. According to EPA, the strategy builds on the successes and broadens the scope of early federal action that generated baseline progress by including the health, scientific and technical expertise of the partners.