BCCDC Grand Rounds Radon Gas is described by several leading agencies as the second cause of lung cancer next to smoking. This global colourless, odourless and tasteless gas is dubbed the silent killer. The Health Canada 2012 Cross-Canada Radon Survey strengthens the aspect that all Canadian indoor environments should be tested for radon, with BC interior being of heightened concern. In 2012 Interior Health entered into a Health Canada Radon Awareness Memorandum of Agreement and embarked on numerous projects of varied outcome success. This talk will touch upon the projects undertaken, and the valuable experience garnered, in particular the logistics of coordinating the radon testing exercises (Child Care Facilities and IH Buildings), and the ongoing progression to present day testing and mitigation for lesser radon exposure