10 CFR §835.606

1. (a)Items and containers may be excepted from the radioactive material labeling requirements of § 835.605 when:
   1. (1)Used, handled, or stored in areas posted and controlled in accordance with this subpart and sufficient information is provided to permit individuals to take precautions to avoid or control exposures; or
   2. (2)The quantity of radioactive material is less than one tenth of the values specified in appendix E of this part and less than 0.1 Ci; or
   3. (3)Packaged, labeled, and marked in accordance with the regulations of the Department of Transportation or DOE Orders governing radioactive material transportation; or
   4. (4)Inaccessible, or accessible only to individuals authorized to handle or use them, or to work in the vicinity; or
   5. (5)Installed in manufacturing, process, or other equipment, such as reactor components, piping, and tanks; or
   6. (6)The radioactive material consists solely of nuclear weapons or their components.
2. (b)Radioactive material labels applied to sealed radioactive sources may be excepted from the color specifications of § 835.601(a).