Swiss federal authorities
Swiss Federal Nuclear Safety Inspectorate ENSI
Oversight of nuclear safety at Switzerland’s nuclear facilities has developed gradually. The oversight strategy that had evolved historically was thoroughly systematised in the period around the turn of the millennium, entailing the introduction of a management system and the development of an “Integrated Oversight” strategy. The objective of this publication is to present the fundamental…
ENSI concludes that the operators complied with the licensed operating conditions in 2021 and fulfilled their legally stipulated reporting obligations. In the year under review, a total of 24 reportable events occurred at the nuclear power plants and at the Paul Scherrer Institute, all of which were assigned to level 0 of the International Event…
ENSI has included two new research projects of the Nuclear Energy Agency in its programme: one on irradiation experiments under reactor conditions, the other on long-term operational safety. In addition, ENSI has been supporting a research project on the behaviour of reinforced concrete in earthquakes since 2021, as well as two projects on nuclear waste…
The 2021 IRRS mission took place in Switzerland from 18 to 29 October with the aim of reviewing nuclear oversight.
The guideline ENSI-G03 applies to deep geological repositories and the associated surface facilities and near-surface access structures. Pursuant to Article 3 letter c of the Nuclear Energy Act of 21 March 2003 (NEA; SR 732.1), a deep geological repository is a nuclear facility for the disposal of radiological waste in a deep geological formation, which…
Implications for Regulatory Oversight of Human and Organisational Factors.
