Handouts & Guides
On April 1, 2011 the State Legislature made Radon Mitigation Measures Mandatory for all newly constructed buildings in the Counties of Multnomah, Clackamas, Washington, Baker, Hood River, Polk, and Yamhill.
On April 1, 2011 the State Legislature made Radon Mitigation Measures Mandatory for all newly constructed buildings in the Counties of Multnomah, Clackamas, Washington, Baker, Hood River, Polk, and Yamhill.