News Date
"On August 22 (2011), an ordinance of the Council of Ministers was published establishing the National Center for Nuclear Research as of September 1, 2011. The government's decision to merge the POLATOM Institute of Atomic Energy and the Institute for Nuclear Problems ends the nearly 30-year period of the destruction of Świerk. The Institute for Nuclear Research is being reborn under a new name and with new tasks. "
Full text of the archival information: https://www.ncbj.gov.pl/powolanie-narodowego-centrum-badan-jadrowych