Multilateral relations in Europe

Europe constitutes the priority field of international action for ASN, which thereby intends contributing to the construction of a Europe of nuclear safety, of safety of management of nuclear waste and spent fuel and of radiation protection.


ENSREG (European Safety REgulators Group) is a group of experts from the European Commission and the member countries of the European Union, represented by national delegations, split evenly between heads of safety regulators and representatives of Ministries for the Environment or Energy (i.e. two representatives per delegation).

France is represented within ENSREG by the Chairman of ASN and by the DGEC (Directorate General for Energy and Climate)

Following a decision by the European Council (heads of States and Governments) in March 2007, a "High-Level Group" (HLG) on nuclear safety and waste management, subsequently renamed ENSREG, was created in 2008. It is an independent group which helps the European Commission establish the conditions for continuous improvement of nuclear safety and reach a common position in the fields of safety and the management of radioactive waste.

ASN participates in the ENSREG working groups tasked respectively with nuclear safety, waste management, transparency and international relations.

ENSREG coordinated the nuclear power plant stress tests in Europe following the Fukushima accident, on the basis of a technical provisions established by WENRA (Western European Nuclear Regulators Association).

In addition, ENSREG organised the first peer review on ageing management of power reactors and research reactors with a power equal to or greater than 1 MWth.

In this context, each of the 19 countries participating in this review drafted a national report on their assessment of the ageing of the reactors concerned, which was posted on the ENSREG website in 2017.

Following the peer review completed at the end of 2018, the participating countries drafted their national action plan, published on the ENSREG website at the end of September 2019.

The document in English is available below.


For more informations

Date of last update : 21/07/2020