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The Convention on Nuclear Safety

International Atomic Energy Agency - IAEA International Atomic Energy Agency - IAEASource: IAEA

The International Convention on Nuclear Safety (CNS) aims at increasing the safety of civil nuclear power plants world-wide. The Convention came into force on 24 October 1996. As of today there are 78 Contracting Parties including EURATOM. 10 Signatory States are not yet Contracting Parties to the Convention. Germany has been Contracting Party since 20 April 1997.

Since 1999 the Federal Office for Radiation Protection (BfS) has been making substantial contributions to formulating the Convention. On 30 July 2016, the Federal Office for the Safety of Nuclear Waste Management (BfE) took over this task from the BfS. In addition to taking part in developing the German report the BfE takes over organisational tasks in the meetings and is actively involved in improving the process.

State of 2018.05.22


In order to achieve and maintain a high level of nuclear safety worldwide the Convention on Nuclear Safety obligates the Contracting Parties to submit a National Report on the implementation of the Convention every three years and to participate in a Review Meeting.

Review Process

The Review Process within the framework of the Convention on Nuclear Safety comprises a Review Meeting every three years and further important steps.

Extraordinary Meeting in 2012

The Second Extraordinary Meeting of the Convention on Nuclear Safety took place in August 2012 in Vienna. During this meeting especially the lessons learned from the nuclear accident at the Fukushima Daiichi nuclear power plant, Japan, and their implementation were discussed.

Latest News

The next review meeting to the Convention on Nuclear Safety will take place from 27 March to 7 April 2017 in Vienna. For this purpose Germany has submitted its National Report in due time to the responsible secretary of the IAEA.

Diplomatic Conference 2015

In February 2015, a Diplomatic Conference on the Convention on Ncuelar Safety (CNS) took place at the IAEA in Vienna. On this occasion the Contracting Parties passed a Joint Declaration (Vienna Declaration). Apart from the recognition of the high safety requirements for civil nuclear power plants, the Declaration also contained requirements for the National Reports as to the Review Meeting in 2017.

Previous Review Meetings since 1999

After the First Review Meeting 1999 further Review Meetings on the Convention on Nuclear Safety took place every three years.

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