NEA/RWM/R(2022)2
Following a safety-oriented, stepwise procedure for geological repository siting, the Nuclear Waste Management Organization of Japan (NUMO) requested in 2021 that the NEA facilitate an independent in...
Published date:
19 January 2023
Published date:
7 December 2022
25 -
26 October 2022
Venue: NH Hotel Berlin Mitte, Leipziger Str. 106-111, 10117, Berlin, Germany
Radioactive waste is produced in all phases of the nuclear fuel cycle and from the use of radioactive materials in industrial, medical, defence and research applications. Disposal in engineered repos...
Published date:
14 October 2022
20 -
22 July 2022
Sheraton Bucharest Hotel, Bucharest, Romania
Published date:
18 July 2022
The NEA has made progress on two activities that seek to bolster member countries’ nuclear and radiological emergency preparedness and their ability to co-ordinate response actions.
Published date:
27 May 2022
On 17-18 May, experts in radioactive waste management, local stakeholders and non-technical actors convened in Bern, Switzerland, for the IGSC and FSC workshop on the safety case.
Published date:
23 May 2022
The Integration Group for the Safety Case (IGSC) provides advice to the Radioactive Waste Management Committee (RWMC) on major and emerging issues to facilitate the development of waste management st...
Published date:
17 March 2022
NEA/RWM/R(2019)4
This document is the fourth of the five interrelated reports of the Radioactive Waste Repository Metadata Management (RepMet) Initiative. The series of reports discusses the key aspects of data and r...
Published date:
1 March 2022
The Crystalline Club (CRC) is composed of technical experts with experience in evaluating or reviewing the understanding of crystalline rock as host rocks for deep geologic disposal projects. CRC mem...
Published date:
16 November 2021
The Clay Club promotes the exchange of information, shared approaches and methods to develop and document an understanding of clay media as a host rock for a repository.
Published date:
16 November 2021
The main objective of the Salt Club is to make the current knowledge base on rock salt more readily available to member countries, particularly those countries with adequate rock salt deposits to hos...
Published date:
10 November 2021
The NEA hosted an online expert roundtable discussion on 24 June 2021 on safety case projects of three different types of disposal facilities in member countries.
Published date:
1 July 2021
The Joint IGSC/SITEX Seminar on Regulatory Review of Safety Cases for Geological Disposal of Radioactive Waste, held in Paris, France on 21-22 February 2017, provided a forum for international organi...
Published date:
5 May 2021
Summary record of the topical session on “Considerations for Updating a Safety Case” held during the 21st meeting of the IGSC held in Paris, France on 8-10 October 2019.
Published date:
15 March 2021
The Expert Group on Operational Safety (EGOS) aims to identify, evaluate and help define international best practice in operating geological repositories for radioactive waste safely.
Published date:
4 February 2021
On the occasion of this anniversary, the NEA has published a commemorative brochure that reflects on 20 years of IGSC work and traces the evolution of the concept of the safety case overall.
Published date:
29 January 2021
The NEA Integration Group for the Safety Case (IGSC) has served as the most important and effective international platform for developing and integrating the science and engineering necessary to unde...
Published date:
21 December 2020
Integration Group for the Safety Case (IGSC) flyer.
Published date:
24 September 2020
The IGSC has identified various tools that can be used to structure and thus better manage and transfer the ever-increasing amounts of information and knowledge across a project lifetime.
Published date:
17 August 2020
The Integration Group for the Safety Case (IGSC) has been organising a series of symposia every five years focusing on the development of a competent and robust safety case since 2007, in co‑operatio...
Published date:
15 July 2020
The design and implementation activities of the Integration Group for the Safety Case (IGSC) focus on how to achieve safety in practice.
Published date:
3 July 2020
The Scientific Basis activities of the Integration Group for the Safety Case (IGSC) examine important scientific and technical issues for the development and integration of safety cases.
Published date:
30 June 2020
NEA Expert Group on Operational Safety (EGOS) meeting, 7 October 2019.
Published date:
18 November 2019
Published date:
18 November 2019
NEA/RWM/R(2019)1
Version 3.0 of the International Features, Events and Processes (IFEP) List for the Deep Geological Disposal of Radioactive Waste. This is a comprehensive and structured list of generic FEPs, relevan...
Published date:
18 February 2019
For the past several decades, the Nuclear Energy Agency Salt Club has been supporting and overseeing the characterisation of rock salt as a potential host rock for deep geological repositories. This ...
Published date:
22 May 2018
All national radioactive waste management authorities recognise today that a robust safety case is essential in developing disposal facilities for radioactive waste. To improve the robustness of the ...
Published date:
17 August 2017
Communication has a specific role to play in the development of deep geological repositories. Building trust with the stakeholders involved in this process, particularly within the local community, i...
Published date:
20 February 2017
Summary record extracted from NEA/RWM/IGSC(2016)10/PROV concerning the topical session on the demonstration of repository technology.
Published date:
12 October 2016
The Nuclear Energy Agency carried out an independent peer review of Japan’s siting process and criteria for the geological disposal of high-level radioactive waste in May 2016. The review concluded t...
Published date:
20 January 2016
NEA/RWM/R(2015)3
This report provides an overview of the state of the art in scenario development related to the long-term safety of geological repositories for radioactive waste.
Published date:
15 December 2015
Summary record extracted from NEA/RWM/IGSC(2015)9/FINAL concerning the topical session on the role of geo-scientific arguments in the siting process.
Published date:
7 October 2015
NEA/RWM/IGSC(2015)1/REV1
In the post-closure phase of a deep geological repository for radioactive waste, significant quantities of gases may be generated from various sources. The most important gas generating process is an...
Published date:
11 March 2015
NEA News is the professional journal of the Nuclear Energy Agency (NEA). It features articles on the latest nuclear energy issues concerning the economic and technical aspects of nuclear energy, nucl...
Published date:
19 December 2014
Summary record extracted from NEA/RWM/IGSC(2014)5/PROV concerning the topical session on handling extreme geological events in safety cases during the post-closure phase.
Published date:
8 October 2014
NEA/RWM/IGSC(2013)11
This document is the draft summary record of the 15th meeting of the Integration Group for the Safety Case (IGSC), held OECD Conference Centre, Paris, France on 10-11 October 2013.
Published date:
23 May 2014
NEA/RWM/IGSC(2013)10
This document is the summary record of the 2nd meeting of the Salt Club held in Berlin, Germany on 16 September 2013. The Salt Club operates under the aegis of the Integration Group for the Safety Ca...
Published date:
13 March 2014
NEA/RWM/R(2013)10
This document describes the proceedings of an IGSC international workshop was convened in Braunschweig, Germany on 5-7 September 2013, with the purpose of identifying and compiling information on kno...
Published date:
3 March 2014
NEA/RWM/R(2013)9
This document describes the proceedings of an IGSC International Symposium held at the OECD Conference Centre, Paris France on 7-9 October 2013. The purpose of this symposium was to assess the practi...
Published date:
19 February 2014
Integration Group for the Safety Case (IGSC) brochure on the long-term safety case for geological disposal of radioactive waste.
Published date:
1 February 2014
NEA/RWM/R(2013)7
This Technical Note reviews the relevant project-specific FEP lists recently developed (i.e. since 2006) by organisations assessing the post-closure safety of the deep disposal of radioactive waste. ...
Published date:
19 December 2013
NEA/RWM/IGSC(2013)3/PROV
The first meeting of the Salt Club (SC-1) took place at the NEA Offices in Issy-Les-Moulineaux, France on 04 December 2012. This draft summary record reviews the main items and decisions.
Published date:
10 September 2013
NEA/RWM/IGSC(2013)2/PROV
This document describes the provisional Programme of Work (PoW) of the Expert Group on Operational Safety in 2013 to 2014. Work activities outlined here were approved by the EG-OS at their kickoff me...
Published date:
27 June 2013
NEA/RWM/R(2013)1
This document defines and discusses the purpose and general contents of post-closure safety cases for geological repositories for long-lived radioactive waste. Its aim is to provide a useful point of...
Published date:
13 February 2013
An important activity of the OECD Nuclear Energy Agency (NEA) in the field of radioactive waste management is the organisation of independent, international peer reviews of national studies and proje...
Published date:
8 October 2012
Safety assessment is an interdisciplinary approach that focuses on the scientific understanding and performance assessment of safety functions as well as the hazards associated with a geological disp...
Published date:
18 September 2012
NEA/RWM/PEER(2012)3
The Nuclear Energy Agency (NEA) has an acknowledged role in organising independent, international peer reviews of national programmes and studies in the field of radioactive waste management. The NEA...
Published date:
14 September 2012
Sweden is at the forefront among countries developing plans for a deep geological repository of highly radioactive waste. There is no such repository in operation yet worldwide, but Sweden, Finland a...
Published date:
5 July 2012
NEA/RWM/R(2012)7
The main purpose of this status report is to increase awareness and understanding of the potential applications of indicators in the safety case, and provide support for further development in the ar...
Published date:
3 July 2012
NEA/RWM/PEER(2012)2
A major activity of the Nuclear Energy Agency (NEA) in the field of radioactive waste management is the organization of independent, international peer reviews of national studies and projects. The N...
Published date:
12 June 2012
A central safety function of radioactive waste disposal repositories is the prevention or sufficient retardation of radionuclide migration to the biosphere. Performance assessment exercises in variou...
Published date:
4 May 2012
NEA/RWM/PEER(2012)1
At the request of the Belgian Federal government, the OECD-NEA International Review Team (IRT) is reviewing the safety case of the ONDRAF/NIRAS' surface disposal facility for low and intermediate lev...
Published date:
13 March 2012
NEA/RWM/R(2012)3/REV
This report presents the proceedings of a workshop on the roles, evolution and interactions of cementitious materials in geological disposal facilities for radioactive waste. The workshop was organis...
Published date:
2 March 2012
Summary record extracted from NEA/RWM/IGSC(2011)2 concerning the topical session on gas migration.
Published date:
19 October 2011
NEA/RWM/PEER(2011)3
At the request of the Swedish government, the OECD-NEA International Review Team (IRT) is examining the application by SKB for a construction license of a spent fuel repository in Sweden. Questionnai...
Published date:
26 July 2011
NEA/RWM/PEER(2011)1
Over the past two decades the NEA, on behalf of requesting countries, has regularly organised international peer reviews of national safety reports in the field of geological disposal of radioactive ...
Published date:
26 April 2011
Summary record extracted from NEA/RWM/IGSC(2010)8 concerning the topical session on optimisation.
Published date:
20 October 2010
À toutes les phases du cycle du combustible nucléaire, mais aussi lorsque l’on utilise des substances radioactives dans l’industrie, la recherche et en médecine, on produit des déchets radioactifs. L...
Published date:
24 September 2010
Radioactive waste is associated with all phases of the nuclear fuel cycle as well as the use of radioactive materials in medicine, research and industry. For the most hazardous and long-lived waste, ...
Published date:
24 September 2010
Summary record extracted from NEA/RWM/IGSC(2009)7 concerning the topical session devoted to organisational issues.
Published date:
22 October 2009
This brochure describes the IGSC’s mission, membership and operation, current issues and work programme, and publications.
Published date:
1 September 2009
A “safety case” is the synthesis of evidence, analyses and arguments that quantify and substantiate a claim that a geological repository for radioactive waste will be safe after closure and beyond th...
Published date:
5 May 2009
A key challenge in the development of safety cases for the deep geological disposal of radioactive waste is handling the long time frame over which the radioactive waste remains hazardous. The intrin...
Published date:
13 March 2009
Summary record extracted from NEA/RWM/IGSC(2009)2/REV concerning balancing operational and long-term safety considerations.
Published date:
29 October 2008
NEA/RWM/IGSC(2008)2
This report of the NEA Working Group on Approaches and Methods for Integrating Geological Information in the Safety Case (AMIGO) summarizes the responses from 17 AMIGO participants, including both im...
Published date:
23 July 2008
Summary record extracted from NEA/RWM/IGSC(2008)1 concerning the proposed programme of work for the IGSC.
Published date:
25 October 2007
The long-term safety of deep disposal of radioactive waste will be strongly dependent on the performance of the geological setting. The geology fulfils important safety functions including isolating ...
Published date:
22 June 2007
The OECD Nuclear Energy Agency (NEA) hosted an international symposium on “Safety Cases for the Deep Disposal of Radioactive Waste: Where Do We Stand?” in January 2007. The NEA has spearheaded import...
Published date:
12 April 2007
The presence of several barriers serving complementary safety functions enhances confidence that radioactive waste placed in deep geological repositories will be adequately isolated and contained to ...
Published date:
12 April 2007
NEA/RWM/IGSC(2007)4/PROV
This document outlines the preliminary programme and pre-registration steps to participate in the third AMIGO Workshop on Approaches and Challenges for the Use of Geological Information in the Safety...
Published date:
10 April 2007
In the deep disposal of radioactive waste, the presence of several barriers serving complementary safety functions enhances confidence that the waste will be isolated and contained to protect human h...
Published date:
16 February 2007
NEA/RWM/IGSC(2006)3
The report is aimed at interested parties that already have some detailed background knowledge of safety assessment methodologies and safety cases, including safety assessment practitioners and regul...
Published date:
4 January 2007
Summary record extracted from NEA/RWM/IGSC(2006)5 concerning recent progress and new methods of handling FEPs in the safety case.
Published date:
26 October 2006
Le problème clé dans le démantèlement des installations nucléaires est l’élimination progressive des risques, au moyen d’une série d’actions de décontamination et de déconstruction qui doivent être r...
Published date:
30 December 2005
The key issue in the decommissioning of nuclear facilities is the progressive removal of hazards, by stepwise decontamination and dismantling activities that have to be carried out safely and within ...
Published date:
30 December 2005
NEA/RWM/IGSC(2005)15
This document presents a list of Integration Group for the Safety Case (IGSC) documents that have been published since its launching in 2000. It consists of two parts, the first of which lists the pu...
Published date:
20 October 2005
NEA/RWM/IGSC(2004)16
This document contains the final programme of the second AMIGO Workshop on Linkage of Geoscientific Arguments and Evidence in Supporting the Safety Case, to be held in Toronto, Canada on 20-22 Septem...
Published date:
5 September 2005
NEA/RWM/PEER(2005)2
International peer reviews of disposal safety cases are regularly carried out under the aegis of the RWMC. A checklist of questions is being provided in order to help the review teams prepare a final...
Published date:
11 August 2005
NEA/RWM/IGSC(2005)4
This document contains the final programme and registration details of the EBS Workshop on Integration of Engineered Barrier Systems in the Safety Case: The Role of Modelling. The workshop is to be h...
Published date:
5 July 2005
NEA/RWM/IGSC(2005)4/PROV
This document contains the provisional programme and registation details for the EBS Workshop on the Integration of Engineered Barrier Systems in the Safety Case: The Role of Modelling. The workshop ...
Published date:
15 April 2005
The OECD Nuclear Energy Agency (NEA) organised a workshop on the “Management of Uncertainty in Safety Cases and the Role of Risk” in Stockholm, Sweden, on 2-4 February 2004. The workshop’s main objec...
Published date:
25 February 2005
NEA/RWM/WPDD(2005)3
This status report was prepared on behalf of the WPDD by its Task Group on the Decommissioning Safety Case. It reflects the viewpoints and materials of a topical session held in December 2001 plus th...
Published date:
11 February 2005
NEA/RWM/IGSC(2005)3
The topical session reported on herein sought to confirm the need to start thinking about the place of monitoring in the context of a safety case and to hear from within the Integration Group for the...
Published date:
28 January 2005
NEA/RWM/CLAYCLUB(2004)5
This document is the summary record of the 14th Plenary Meeting of the NEA's Integration Group for the Safety Case's (IGSC) Clay Club, held at the ONDRAF/NIRAS offices in Brussels, Belgium on 20-21 O...
Published date:
1 December 2004
The Integration Group for the Safety Case (IGSC) of the Nuclear Energy Agency (NEA) is co-sponsoring a project with the European Commission to develop a greater understanding of how to achieve the ne...
Published date:
16 November 2004
Le dépôt des déchets radioactifs à vie longue dans des formations géologiques profondes fait l’objet d’études approfondies dans le monde entier dans le but de protéger l’homme et l’environnement, auj...
Published date:
19 July 2004
Disposal of long-lived radioactive waste in engineered facilities deep underground is being widely investigated worldwide in order to protect humans and the environment both now and in the future. Th...
Published date:
19 July 2004
When preparing the safety case for a deep geological repository of radioactive waste, the integration of wide-ranging information from multidisciplinary sources is a complex task. This has provided t...
Published date:
1 June 2004
Studies are under way in Switzerland to investigate various aspects of the geological disposal of radioactive waste. This report presents the results of the international peer review organised by the...
Published date:
23 April 2004
Im schweizerischen Projekt Entsorgungsnachweis untersucht die Nagra die Sicherheit der geologischen Tiefenlagerung von radioaktiven Abfällen im Opalinuston des Zürcher Weinlands. Der vorliegende Beri...
Published date:
22 April 2004
L’AEN a organisé en avril 2002 un atelier sur la “Gestion des échelles de temps dans le cadre de l’évaluation de sûreté en phase post-fermeture” de stockages de déchets radioactifs en formation géolo...
Published date:
1 March 2004
NEA/RWM/IGSC(2004)3
During its fifth meeting, held in Paris, France on 5 October 2003, the NEA's Integration Group for the Safety Case (IGSC) conducted a topical session on Observations Regarding the Safety Case in Rece...
Published date:
13 February 2004
A workshop entitled “The Handling of Timescales in Assessing Post-closure Safety” of deep geological repositories for radioactive waste was organised by the NEA in April 2002. This report presents th...
Published date:
10 February 2004
A joint NEA-EC workshop entitled “Engineered Barrier Systems (EBS) in the Context of the Entire Safety Case” was organised in Oxford on 25-27 September 2002 and hosted by United Kingdom Nirex Limited...
Published date:
3 July 2003
NEA/RWM/IGSC(2003)12
This document is the final programme of the NEA's Integration Group for the Safety Case (IGSC) workshop on Management of Uncertainty in Safety Cases: The Role of Risk, held in Stockholm, Sweden on 2-...
Published date:
25 June 2003
NEA/RWM/IGSC(2003)4
The Integration Group for the Safety Case (IGSC) of the Nuclear Energy Agency (NEA) conducted this workshop under the joint auspices of the EC and the NEA, at Keble College, Oxford on 25-27 September...
Published date:
27 May 2003
NEA/RWM/IGSC(2003)3
This document contains the final programme of the Approaches and Methods for Integrating Geologic Information in the Safety Case (AMIGO) Workshop on Building Confidence using Multiple Lines of Eviden...
Published date:
22 May 2003
A workshop entitled the “Handling of timescales in assessing post-closure safety” of deep geological repositories for radioactive waste was organised in Paris on 16-18 April 2002 and hosted by the Fr...
Published date:
22 November 2002
NEA/RWM/IGSC(2002)6
This document is a compilation of the abstracts of the presentations presented at the Integration Group for the Safety Case's (IGSC) Workshop on the Handling of Time Scales in Assessing Post-Closure ...
Published date:
31 May 2002
NEA/RWM/WPDD(2002)2
At its second meeting in Paris, France on 5-7 December 2001, the Working Parting on Decommissioning and Dismantling (WPDD) held a topical sessions on the D&D Safety Case. This report documents that t...
Published date:
8 March 2002
NEA/RWM/IGSC(2002)2
This document contains the proceedings of a topical session on The Role of the Biosphere in a Safety Case held during the third Integration Group for the Safety Case (IGSC) meeting in Paris, France o...
Published date:
26 February 2002
GEOTRAP is the OECD/NEA Project on Radionuclide Migration in Geologic, Heterogeneous Media carried out in the context of site evaluation and safety assessment of deep repository systems for long-live...
Published date:
14 February 2002
NEA/RWM/IGSC(2002)1
This document contains the proceedings of a topical session on the Safety Case held at the third Integration Group for the Safety Case (IGSC) meeting in Paris, France on 25 November 2001. The topics ...
Published date:
10 January 2002
Analysis of the long-term safety of radioactive waste repositories, using performance assessment and other tools, is required prior to implementation.The initial stage in developing a repository safe...
Published date:
25 July 2001
In underground repositories for radioactive waste, significant quantities of gases may be generated as a result of several processes. The potential impact of gas generation, accumulation and migratio...
Published date:
20 April 2001
GEOTRAP is the OECD/NEA Project on Radionuclide Migration in Geologic, Heterogeneous Media carried out in the context of site evaluation and safety assessment of deep repository systems for long-live...
Published date:
13 February 2001
This report is aimed at safety assessors of deep geological repositories and at technical specialists concerned with radioactive waste disposal. It is intended to improve communication among interest...
Published date:
6 January 2000
The analysis of the long-term safety of radioactive waste disposal systems requires the use of mathematical models and scenarios that simulate repository behavior in response to future events. This r...
Published date:
2 January 1992
