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Surface Contamination Guidelines/Radiological Clearance of Property

Authorized limits govern the control and clearance of personal and real property. They are radionuclide concentrations or activity levels approved by DOE to permit the clearance of property from DOE radiological control for either restricted or unrestricted use, consistent with DOE’s radiation protection framework and standards for the public, and the environment.  DOE O 458.1 provides for the use of previosly approved guidelines and limits as pre-approved authorized limits until they are revised or replaced.  Such guidelines and limits can be found in the documents below.