Independent safety regulation has been a hallmark of the global nuclear power sector from its beginnings. Industry and government have long understood the importance of a predictable and adaptable re...
Published date:
7 April 2022
Much has been learnt in the ten years since the Great Eastern Japan Earthquake and the subsequent accident at the Fukushima Daiichi Nuclear Power Plant, but significant challenges still remain.
This ...
Published date:
3 March 2021
Software-based systems are used and retrofitted in operating nuclear power plants worldwide. The failure modes of both hardware and software in these systems are to some extent different from the ana...
Published date:
22 April 2020
NEA/CSNI/R(2020)14
The present report summarises the main results and learnings from the third phase of the NEA Behaviour of Iodine Project (BIP-3), which was conducted between 2016 and 2019 by the Canadian Nuclear Lab...
Published date:
15 February 2023
28 -
29 June 2023
Tokyo (Japan) - Hitotsubashi Hall, National Center of Sciences Building
The NEA in collaboration with the Japanese Nuclear Regulatory Authority (NRA) will host an international workshop on 28-29 June 2023 on the topic of Ageing management considerations in mechanical cod...
Published date:
21 February 2023
The brochure provides background information about the NEA.
Published date:
10 September 2018
The OECD Nuclear Energy Agency (NEA) Strategic Plan serves as a guiding instrument that reflects the priorities of its member countries as the Agency addresses evolving needs in the exploration and a...
Published date:
25 January 2022
This Strategic Plan is intended to guide the NEA as it seeks to meet the evolving needs of member countries in the application and exploration of nuclear science and technology. The plan includes an ...
Published date:
22 December 2016
The NEA Annual Report 2019 provides an overview of the status of nuclear power in NEA member countries and illustrative descriptions of the Agency's activities and international joint projects. 2019 ...
Published date:
12 June 2020
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:
29 June 2004
NEA/CSNI/R(2020)8
The aim of this report is to examine whether there are any international variations in the electrical power system designs (“design variations”) of nuclear power plants that affect the system respons...
Published date:
13 January 2023
The Working Group on Digital Instrumentation and Control (WGDIC) promotes harmonisation and improvements in nuclear safety through the development of regulatory guidance to address digital instrument...
Published date:
6 February 2020
CSNI and CNRA held their biannual meetings and a joint session at the NEA headquarters.
Published date:
10 June 2022
Fukushima Daiichi Nuclear Power Plant Accident: Message from Director-General Magwood
Published date:
11 March 2022
The Multinational Design Evaluation Programme (MDEP) continues under a new organisational structure after the second Management Board meeting.
Published date:
26 July 2022
The Multinational Design Evaluation Programme (MDEP) entered a new phase on 14 December 2021. The MDEP will continue in its role as a unique multinational initiative leveraging the resources and know...
Published date:
15 December 2021
The Multinational Design Evaluation Programme (MDEP) begins operation under a new framework agreement.
Published date:
4 February 2022
This report further explores some of the key elements presented in The Safety Culture of an Effective Regulatory Body (2016), commonly known as the NEA Green Booklet, and provides both an overview an...
Published date:
10 May 2021
This report outlines the response of the OECD Nuclear Energy Agency (NEA) and its member countries to the March 2011 accident at TEPCO's Fukushima Daiichi nuclear power plant. All NEA members took ea...
Published date:
10 September 2013
NEA/CSNI/R(2020)10
Following the recommendations from the technical workshop on “Nuclear Fuel Behaviour during Reactivity-Initiated Accidents” organised by the Nuclear Energy Agency (NEA) in September 2009, a first ben...
Published date:
18 October 2022
The Committee on Nuclear Regulatory Activities (CNRA) is an international committee created in 1989 to guide the NEA concerning safety in the regulation, licensing and inspection of nuclear installat...
Published date:
10 February 2021
Published date:
30 September 2022
The OECD Nuclear Energy Agency (NEA) has just published a new report entitled Five Years after the Fukushima Daiichi Accident: Nuclear Safety Improvements and Lessons Learnt.
Published date:
29 February 2016
Feedback on operating experience from nuclear power plants is intended to help avoid occurrence or recurrence of safety-significant events. Well-established feedback systems exist on the national and...
Published date:
31 December 2004
This technical opinion paper provides the reader with a concise description of both the benefits and disadvantages of using probabilistic safety assessment (PSA) to analyse operational events in nucl...
Published date:
2 December 2004
Probabilistic safety analyses (PSAs) for many of the nuclear power plants throughout the world are being maintained as "living PSAs" (LPSAs), being updated to take account of changes to the design an...
Published date:
1 February 2005
This technical opinion paper represents the consensus of risk analysts in NEA member countries on the current state of the art of human reliability analysis (HRA) in probabilistic safety assessment (...
Published date:
9 February 2004
Nuclear licensees are increasingly required to adapt to a more challenging commercial environment as electricity markets are liberalised. One of the costs that is often perceived as being amenable to...
Published date:
9 June 2004
This technical opinion paper represents the consensus of risk analysts in NEA member countries on the current state of the art of level-2 probabilistic safety assessment (PSA) and its applications in...
Published date:
20 April 2007
Errors during maintenance and periodic testing are significant contributors to plant events. These errors may not always be revealed by post-maintenance tests and may remain undetected for extended p...
Published date:
26 February 2009
Nuclear power plant modifications may be needed for a number of different reasons. These include physical ageing of plant systems, structures and components; obsolescence in hardware and software; fe...
Published date:
3 February 2009
It is a dynamic time for the nuclear power sector. Existing reactor control rooms are undergoing various forms of modernisation. New reactors are being built in many countries and advanced reactors a...
Published date:
11 December 2009
The way in which nuclear licensees’ organisations are structured and resourced clearly has a potential impact on nuclear safety. As experience has continually demonstrated, operating organisations wi...
Published date:
15 May 2012
Managing the ageing of fuel cycle facilities (FCFs) means, as for other nuclear installations, ensuring the availability of required safety functions throughout their service life while taking into a...
Published date:
31 December 2013
As all safety systems in the majority of existing nuclear power plants use the preferred power supply, any voltage surges in these systems could lead to common-cause failures. In the event of an unus...
Published date:
17 May 2013
CSNI Technical Opinion Paper No. 17: Fire Probabilistic Safety Assessments for Nuclear Power Plants: 2019 Update provides an authoritative review of the current status and use of the fire PSA in nucl...
Published date:
27 May 2019
These technical opinion papers represent the consensus of risk analysts and experts in NEA Member countries on the current state of the art in Fire Probabilistic Safety Assessment (PSA) for nuclear p...
Published date:
26 September 2002
Acceptance criteria for emergency core cooling systems (ECCS) define the maximum temperature and degree of oxidation in order to avoid excessive embrittlement and hence failure of the fuel cladding, ...
Published date:
21 September 2011
Seismic probabilistic safety assessment (SPSA) is a systematic method for examining and evaluating the risk from earthquake-initiated accidents. The significant advances in the area of SPSA since the...
Published date:
27 September 2021
NEA/CSNI/R(2011)1/REV1
This Joint Strategic Plan for the Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) takes into account the evolving status of the nucle...
Published date:
25 February 2013
11 -
14 April 2022
Virtual event
The NEA held a virtual workshop on the best regulatory practices in In-Service Inspection (ISI) in the nuclear sector on 11-14 April 2022.
Organised by the NEA Working Group on Codes and Standards (...
Published date:
20 April 2022
The Working Group on Codes and Standards (WGCS) aims to facilitate and promote international co-operation, convergence and reconciliation of codes, standards and regulatory requirements for pressure-...
Published date:
21 April 2020
東日本大震災とそれに続く福島第一原子力発電所事故から10年が経ち、多くの教訓が得られたが、まだ多くの課題が残っている。
この報告書は福島第一原子力発電所の現況と、事故後の日本の当局並びに国際社会の対応について報告するもので、事故に起因する多面的な問題を政策決定者と一般市民双方が理解することに役立つであろう。それには、災害復旧努力、損害賠償、原子力安全、原子力規制、放射線防護、廃炉作業、放射性廃棄物...
Published date:
28 July 2021
Nuclear Energy Agency (NEA) Director-General William D. Magwood, IV sat down with Director-General Wanner and Chief Nuclear Officer Harrison during the NEA-IAEA-WANO Human Capital Workshop in June 20...
Published date:
16 December 2019
Insights from Leaders in Nuclear Energy shares personal insights through a series of in-depth conversations between the OECD Nuclear Energy Agency Director-General and leading figures in the sector. ...
Published date:
15 January 2019
The Working Group on the Regulation of New Reactors (WGRNR) examines the regulatory issues of the siting, licensing and regulatory oversight for all new commercial nuclear power reactors. The WGRNR f...
Published date:
11 February 2022
The Working Party on Boiling Water Reactors (WPBWR) covers all boiling water reactors, including advanced boiling water reactors (ABWRs) and the Economic Simplified Boiling Water Reactor (ESBWR).
Published date:
11 February 2022
The CNRA believes in the importance of having a working group dedicated to safety culture. The Working Group on Safety Culture (WGSC) provides a senior level regulatory forum for exchanging informati...
Published date:
11 February 2022
The NEA Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Installations (CSNI) held their biannual meetings from 6 to 9 December 2021 and discussed the evol...
Published date:
14 December 2021
CNRA/CSNI meetings, May-June 2021.
Published date:
10 June 2021
