Course objectives: Upon successfully completing this course, each student will be able to perform the following: Understand the physical properties of Radon gas; commonly used test methods; EPA Radon Zone maps for Maryland; licensee and seller disclosure responsibilities pursuant to State law, residential remediation methods; MAR and GCAAR Contract provisions and Addenda dealing with radon contingencies; and Montgomery County Radon Law 40-13C requiring seller-performed radon testing, effective October 1, 2016.