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Well-logging

All operations involving the lowering and raising of measuring devices or tools that contain licensed nuclear material or are used to detect licensed nuclear materials in wells for the purpose of obtaining information about the well or adjacent formations that may be used in oil, gas, mineral, groundwater, or geological exploration. For related information, see Well Logging and the Well-Logging Licensee Toolkit.

Page Last Reviewed/Updated Thursday, August 27, 2026