News releases

All the news about nuclear safety and radiation protection

Published on 25/01/2018 • 05:08 pm

Information notice

Creusot Forge plant: production to resume

ASN informed Framatome and EDF that it considers that the steps taken at the Creusot Forge plant allow the production of components intended for French nuclear facilities to resume under certain conditions, more particularly, the surveillance of the activities.

Published on 22/01/2018 • 05:48 pm

Information notice

Earthquake resistance of the EDF reactor emergency diesel generator sets

In 2017, EDF notified two events significant for safety which occurred on the emergency diesel generator sets of its nuclear power reactors. ASN rated these two events level 2 on the INES scale.

Published on 16/01/2018 • 10:30 am

Information notice

ASN considers that the Cigeo safety options constitute a significant step forwards

In April 2016, Andra sent ASN the safety options file (DOS) for the Cigeo radioactive waste deep disposal project. Submission of a DOS means that the project becomes part of a process governed by the regulations concerning basic nuclear installations (BNI), more specifically by article 6 of the decree of 2 November 2007.

Published on 22/12/2017 • 11:34 am

Information notice

European Union: Thematic peer review - ageing management of power and research reactors

In 2014, the Council of the European Union adopted directive 2014/87/EURATOM on nuclear security. The main purpose of this directive, supplementing a directive of 2009, was to ensure that the licensees of nuclear facilities learned the lessons from the Fukushima Daiichi Nuclear Power Plant (NPP) accident which occurred in 2011.

Published on 19/12/2017 • 10:04 am

Information notice

“IRRS” international audit mission: ASN publishes the follow-up report

From 1 to 9 October 2017, ASN received an IAEA delegation responsible for following up the Integrated Regulatory Review Service (IRRS) international audit mission carried out in 2014, covering all activities regulated by ASN.

Published on 05/12/2017 • 10:12 am

Information notice

ASN allows restart of the reactors of the Tricastin nuclear power plant (NPP)

With the support of IRSN, ASN examined the data provided by EDF to demonstrate the seismic resistance of the Donzère-Mondragon canal embankment which protects the Tricastin NPP. ASN considers that, following the investigations and repairs carried out by EDF, the condition of the embankment allows the restart of the EDF reactors and gave its consent for the restart of reactors 2, 3 and 4.

Published on 09/11/2017 • 03:00 pm

Information notice

Ruthenium 106 in the ambient air in France: no risk identified for the population

As part of its duty of radioactivity monitoring nationwide, the French Institute for Radiation Protection and Nuclear Safety (IRSN) measured the presence of ruthenium 106 in south-eastern France, between the end of September and the beginning of October 2017, albeit at very low levels, representing a few microbecquerels per cubic metre (µBq/m3). This detection led to the distribution by IRSN of several information notices on its website.

Published on 31/10/2017 • 02:30 pm

Information notice

Level-2 incident involving the emergency diesel generator sets

L’ASN classe au niveau 2 de l’échelle INES un événement significatif pour la sûreté relatif à un défaut de résistance au séisme des systèmes auxiliaires des groupes électrogènes de secours à moteur diesel (diesels de secours) des réacteurs 2 et 5 de la centrale nucléaire du Bugey et des réacteurs 1 et 2 de la centrale nucléaire de Fessenheim. Un événement similaire a fait l’objet d’une première note d’information le 20 juin 2017 pour vingt réacteurs de 1300 MWe.

Published on 31/10/2017 • 12:00 pm

Information notice

Safety of Spent Fuel Management and of Radioactive Waste Management obligations

The sixth triennial review meeting of the Joint Convention on the Safety of Spent Fuel Management and on the Safety of Radioactive Waste Management (called the "Joint Convention") will take place from 21 May to 1 June 2018 at the International Atomic Energy Agency (IAEA) headquarters in Vienna.

Published on 16/10/2017 • 04:20 pm

Press release

Risk of loss of heat sink for 29 nuclear reactors operated by EDF

ASN gives a level 2 rating on the INES scale to a significant safety event regarding a risk of the loss of heat sink for the reactors in the Belleville-sur-Loire, Cattenom, Chinon, Cruas, Dampierre-en-Burly, Golfech, Nogent-sur-Seine, Paluel, Saint-Alban and Saint-Laurent-des-Eaux NPPs. 29 900 MWe and 1300 MWe reactors are concerned by this event.

Published on 16/10/2017 • 12:08 pm

Information notice

Follow-up to the IRRS international audit mission

From 1st to 9th October 2017, ASN received an IAEA delegation responsible for follow-up to the Integrated Regulatory Review Service (IRRS) international audit mission carried out in 2014, concerning all of the activities regulated by ASN.

Published on 11/10/2017 • 04:05 pm

Information notice

Flamanville EPR reactor: ASN issues its opinion

On 10th October 2017, ASN issued its opinion on the anomaly in the steel used for the Flamanville EPR reactor pressure vessel lower head and closure head. ASN considers that this anomaly is not such as to compromise the commissioning of the reactor pressure vessel, provided that specific checks are carried out during operation of the installation. As the feasibility of these checks cannot at present be confirmed for the closure head, ASN considers that the current closure head cannot be used beyond 2024.

Published on 04/10/2017 • 02:16 pm

Information notice

4e conference of the MDEP

Created in 2006, the Multinational Design Evaluation Programme (MDEP) currently brings together the nuclear safety authorities of fifteen countries.

Published on 28/09/2017 • 01:15 pm

Press release

ASN imposes temporary shutdown of the Tricastin nuclear power plant

In a resolution dated 27 September 2017, ASN required that EDF temporarily shut down the four reactors of the Tricastin nuclear power plant as rapidly as possible.

Published on 20/09/2017 • 10:15 am

Information notice

Le Creusot : ASN makes restart of the EDF reactors dependent on the transmission of specific results

Following the detection of an anomaly on the Flamanville EPR reactor pressure vessel in 2014, ASN asked Areva NP to conduct a manufacturing quality review in its Creusot Forge plant (Saône-et-Loire département), which revealed the existence of irregularities in certain manufacturing files.