In a monumental announcement yesterday, HUD (Department of Housing & Urban Development) deployed their new guidelines for mandatory radon testing and radon mitigation in multifamily dwellings. They have made the requirement effective June 4th, 2013.
The U.S. government alerted the American public that radon gas is a bigger problem than previously estimated. In June of 2011, EPA and Surgeon General launched the Federal Radon Action Plan to address the numer two cause of lung cancer in the USA.