Related to the unauthorized access to an area designated as a Very High Radiation Area (VHRA) at Argonne National Laboratory.

On July 12, 2021, the U.S. Department of Energy Office of Enterprise Assessments’ Office of Enforcement issued an Enforcement Letter NEL-2021-01 to UChicago Argonne, LLC related to an employee entering an area designated as a Very High Radiation Area (VHRA) at Argonne National Laboratory.