
A federal safety board has asked for a report and briefing after 15 exothermic (heat-producing) reactions of uranium materials were reported at the Y-12 National Security Complex between 2016 and 2021.
The report and briefing have been requested by the Defense Nuclear Facilities Safety Board, which wants a response from the National Nuclear Safety Administration. The NNSA is part of the U.S. Department of Energy and oversees the nation’s nuclear weapons work, including at Y-12.








