How is the labeling requirement different?
For devices subject to registration, there is a higher standard for durability for the label “permanent.” The NRC will consider a label “permanent” if, for example, it were embossed, etched, stamped, or engraved in metal. This does not, however, mean that it is not removable, but it is unlikely to be defaced under conditions of use. Labels should be securely affixed to the device, tamper resistant, but able to be removed, defaced, or otherwise marked to indicate no radioactive material to meet requirements in 10 CFR 20.1904(b) (and similar requirements of the Agreement States). The other change is that any separable source housing must also be labeled.
