10 CFR § 63.7
License not required for certain preliminary activities
June 9, 2020
The requirement for a license set forth in §63.3(a) is not applicable to the extent that DOE receives and possesses source, special nuclear, and byproduct material at a geologic repository at the Yucca Mountain site:
(a) For purposes of site characterization; or
(b) For use, during site characterization or construction, as components of radiographic, radiation monitoring, or similar equipment or instrumentation.