The NEA Working Group on Digital Instrumentation and Controls (WGDIC) has agreed that a consensus position on the impact of cyber security features on digital instrumentation and control (I&C) system...

CSNI and CNRA held their biannual meetings and a joint session at the NEA headquarters.

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...

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...

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...

This technical report describes the regulatory perspectives on safety aspects related to the fuel qualification for advanced sodium fast reactors (SFRs) and identifies topics that should be investiga...

CNRA/CSNI meetings, May-June 2021.

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...

The Working Group in Public Communication of Nuclear Regulatory Organisations (WGPC) provides a forum for nuclear regulatory organisation communicators and outreach officers to exchange information, ...

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...

CNRA/CSNI meetings, December 2020

NEA Committee on Nuclear Regulatory Activities (CNRA) meeting, 2‑3 June 2020.

After having identified that the public trust towards the regulators could be very different from one country to another even though they are neighbours, the NEA Committee on Nuclear Regulatory Activ...

This report was jointly prepared by the Working Group on Public Communication of NuclearRegulatory organisation of the Nuclear Energy Agency (NEA) Committee on Nuclear Regulatory Activities (CNRA) an...

Este informe fue preparado por el Grupo de Trabajo de Comunicación Pública de las Organizaciones Reguladoras Nucleares (WGPC) del Comité sobre Actividades Reguladoras Nucleares (CNRA) de la Agencia d...

This report was prepared by the Working Group on Public Communication of Nuclear Regulatory Organisations (WGPC) of the Nuclear Energy Agency (NEA) Committee on Nuclear Regulatory Activities (CNRA). ...

The OECD Nuclear Energy Agency (NEA) Committee on Nuclear Regulatory Activities (CNRA) Working Group on Public Communication of Nuclear Regulatory Organisations (WGPC) organised the workshop “Crisis ...

“Social media” is a term referring to various activities that integrate technology, social interaction and content creation. Social media can also be thought of as a way of using technology to “enabl...

The topic of social media as appropriate for further study was first proposed by the NEA Working Group on Public Communication of Nuclear Regulatory Organisations (WGPC) to the NEA Committee on Nucle...

This report was prepared by the OECD Nuclear Energy Agency (NEA) Committee on Nuclear Regulatory Activities (CNRA) Working Group on Public Communication of Nuclear Regulatory Organisations (WGPC). Th...

The Nuclear Energy Agency (NEA) Committee on Nuclear Regulatory Activities (CNRA) Working Group on Public Communication of Nuclear Regulatory Organisations (WGPC) acknowledged the wide range of stake...

The Nuclear Energy Agency (NEA) Working Group on Public Communication of Nuclear Regulatory Organisations (WGPC) has dealt with a broad range of communications issues and produced a variety of report...

NEA Committee on Nuclear Regulatory Activities (CNRA) meeting, 2‑3 December 2019.

The CNRA-MDEP workshop was held at the NEA Headquarters in Boulogne-Billancourt (France) on 5-6 November 2018 on the subject of nuclear supply chain management activities. The following topics were s...

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. ...

This documents provides answers to the questionnaire used as input for the 14th WGIP Workshop held by the WGIP in Heidelberg (Germany) on 8-12 April 2018.

The main objective of this international workshop held in Madrid, Spain, on 24-26 April 2017, was to provide a forum to exchange information and allow groups of nuclear safety experts to discuss thei...

This consensus position provides evaluation guidance for the qualification of platforms developed for general industrial use as well as those developed specifically for nuclear applications important...

This supplementary document contains the appendices that are referred to in the proceedings report for the NEA Workshop on Regulatory Oversight of New Licensee Organisational Capability [NEA/CNRA/R(2...

The Working Group on the Regulation of New Reactors (WGRNR), as the main point of contact between the Multinational Design Evaluation Programme (MDEP) and the Committee on Nuclear Regulatory Activiti...

Regulatory bodies must consider how to develop and deploy its own resources in order to deliver the right level of regulatory oversight against these and other areas of organisational development.

In...

The Working Group on Operating Experience (WGOE) has observed that events with heavy loads are a contemporary issue to address after several operating experiences in recent years. The WGOE made a pro...

At the 15th Meeting of the Committee on Nuclear Regulatory Activities (CNRA) Working Group on the Regulation of New Reactors (WGRNR) agreed to initiate a survey on Regulatory Practice to Assess Passi...

The reports on the survey of the design review of new reactor applications are to serve as guides for regulatory bodies to understand how technical design reviews are performed by member countries. I...

The WGIP Nuclear Power Plant (NPP) Observed Inspection Practices Programme is intended to promote co-operation and learning among member countries and to collect and provide them with information for...

The reports of the survey on the design review of new reactor applications are to serve as guides for regulatory bodies to understand how technical design reviews are performed by member countries. I...

These proceedings cover the 13th International Nuclear Regulatory Inspection Workshop held by WGIP on regulatory inspection activities. This workshop, which is the 13th in a series, along with many o...

The reports of the survey on the design review of new reactor applications are to serve as guides for regulatory bodies to understand how technical design reviews are performed by member countries. I...

A workshop on challenges and enhancements to the safety culture of the regulatory body (SCRB) was held on 3 June 2015 in Paris, France. The workshop provided an invaluable opportunity for an exchange...

Evaluation of safety significant events including the Fukushima Daiichi NPP accident indicate that lessons to be learnt from OPEX could provide an important prevention tool if implemented in a timely...

A fundamental goal in a regulatory authority’s oversight of nuclear facilities is to establish confidence that adequate arrangements are in place for emergency preparedness and response. The CNRA pub...

The reports of the survey on the design review of new reactor applications are to serve as guides for regulatory bodies to understand how technical design reviews are performed by member countries. I...

The ConEx programme includes a database which contains events that have causes and/or lessons learnt related to problems introduced before the commercial operation of nuclear power plants and detecte...

This report, issued by the Working Group on Regulation of New Reactors (WGRNR), on the construction oversight survey is meant to facilitate sharing of information related to the on-site oversight of ...

The previous report The Use of International Operating Experience Feedback for Improving Nuclear Safety, [NEA/CNRA/R(2008)3] addressed the proposal made at the December 2006 CNRA Meeting for the WGOE...

These proceedings cover the 12th International Workshop held by WGIP on regulatory inspection activities. This workshop, which is the twelfth in a series, along with many other activities performed b...

The 12th International Workshop was held by WGIP on regulatory inspection activities. This workshop, which is the twelfth in a series, along with many other activities performed by the Working Group,...

The reports of the survey on the design review of new reactor applications are to serve as guides for regulatory organisations to understand how technical design reviews are performed by member count...

In December 2011, the WGRNR developed a supplemental report augmenting Report on the Survey on Regulation of Site Selection and Preparation NEA/CNRA/R(2010)3 to address additional siting issues, such...

An international Workshop on Challenges and Enhancements to Defence in Depth (DiD) in Light of the Fukushima Daiichi Accident was jointly organised by the NEA Committee on Nuclear Regulatory Activiti...

Following a special topical discussion held on the characteristics of an effective regulator at the 27th CNRA meeting on 4-5 June 2012 and subsequent discussions at the 28th CNRA meeting on 3-4 Decem...

The Fukushima Daiichi NPP accident demonstrated the importance of increasing the robustness of NPPs to extreme external conditions and beyond design basis accidents. In this respect, the CNRA establi...

The Fukushima Daiichi NPP accident serves as a case study for various disciplines within nuclear sciences. Researchers worldwide in health physics, radio-ecology, severe accident analysis, and human ...

This report issued by Working Group for Inspection Practices (WGIP) aims to examine and evaluate how maintenance programs are inspected and the benefits of the inspections. This information would the...

The WGRNR organised an international workshop aimed to provide a forum to exchange information on lessons learned from siting, licensing and constructing new nuclear power plants around the world. Ke...

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...

This report builds on a previous WGIP report published in 1998, Inspection of Licensee Activities in Emergency Planning [NEA/CNRA/R(98)2]. The WGIP members considered that it was a timely to revisit ...

The NEA Committee on Nuclear Regulatory Activities (CNRA) authorised the formation of a task group in June 2011 to identify measures to enhance the integrity of the supply chain by minimising the inc...

The OECD Nuclear Energy Agency (NEA) Committee on Nuclear Regulatory Activities (CNRA) Working Group on Inspection Practices (WGIP) sponsored the 11th International Workshop on Nuclear Regulatory Ins...

The NEA Committee on Nuclear Regulatory Activities (CNRA) believes that an essential factor in ensuring the safety of nuclear installations is the continuing exchange and analysis of technical inform...

This appendix provides the complete compilation of responses received to the questionnaire issued in conjunction with the International Operating Experience Feedback Workshop. The workshop was coordi...

Based on the regulatory actions underway or being considered in different member countries concerning their ability to maintain their corporate knowledge with respect to the ageing work force, the Co...

During the September 2009 meeting, the WGRNR presented with a draft survey comprising a broad range of questions related to the licensing process, design review and regulatory structure. At that time...

The Organisation for Economic Co-operation and Development (OECD) Nuclear Energy Agency (NEA) sponsored a Forum on Insights and Approaches as a result of the Fukushima Accident. The forum was held at...

Over the previous decade, the CNRA has produced a series of regulatory guidance reports known as the "green booklets". These reports are prepared and peer reviewed by senior regulators. They provide ...

The report provides the proceedings from the WGOE meeting discussion on the item of generic interest from September 2010. Additionally, this report aims to analyse the WGOE member country responses t...

On 25 July 2006, Forsmark Unit 1 experienced a short circuit in the offsite 400kV switchyard causing the inoperability of two emergency diesel generators. 

This event identified weaknesses in the ele...

The WGRNR organised an international workshop aimed to review and discuss recent and past construction experience lessons learnt including perspectives from regulatory authorities, vendors, and licen...

At its May 2009 meeting, the WGOE identified transformer failures as an issue of generic importance. The US NRC had identified that transformer failures had an increasing trend. Transfortmers are non...

The CNRA has procuded a series of reports, known as regulatory guidance booklets or "'green booklets", which examine various regulatory challenges and adress the major elements and contemporary issue...

Report jointly prepared by the CNRA Working Group on Public Communication of Nuclear Regulatory Organisations and by the Working Group on Transparency Activities of the European Nuclear Safety Regula...

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 statut of the nucle...

This appendix supports the proceedings of the 10th International Workshop held by WGIP on regulatory inspection activities [NEA/CNRA/R(2010)5]. The workshop was hosted by the ministry of Housing, Spa...

Consistent with the CNRA/CSNI Joint Strategic Plan (2005-2009) and CNRA Operating Plan, the WGRNR began in May 2008 a task of examining and documenting the various practices used by regulatory author...

These proceedings cover the 9th International Workshop held by the WGIP on regulatory inspection. THe focus of this workshop was regulatory inspection activities in 3 main areas: 

• Training and Quali...

In 2006, the CNRA Working Group on Operating Experience (WGOE) began the task of examining national and international operating events databases in order to identify any potential safety issues relat...

In order to capture the current situation, members of the WGOE IOEF Task Group provided short narratives outlining their national OEF practices. The IOEF Report notes that, in order to get a comprehe...

Fire is a one of the hazards that is most commonly encountered in Nuclear Power Plants and could result in damages to safety related systems and to systems important to obtain and maintain safe shutd...

CNRA held several workshops in 1996 and 2001 on the licensing of Digital I&C Systems and a Joint CSNI/CNRA Task Group presented a study on research and regulatory needs in this are in 2006. This work...

With the development of the Joint CSNI/CNRA Strategic Plan and the drafting of a CNRA Operating Plan, the need to develop operating guidelines was recognised. These documents along with the Review Re...

Regulating the long-term safety of geological disposal of radioactive waste poses special challenges due to the very long timescales involved. This report has been prepared to help foster a common un...

The NEA Committee on Nuclear Regulatory Activities (CNRA) believes that an essential factor in ensuring the safety of nuclear installations is the continuing exchange and analysis of technical inform...

This appendix provides the complete compilation of responses received to the questionnaire issued in conjunction with the workshop announcements. The responses are provided as received, with changes ...

This report is the third in a series of the WGOE (Working Group on Operating Experience) of reports on recurring events. The first two reports NEA/CSNI/R(1999)19 and NEA/CSNI/R(2003)13 discussed a va...

These guidelines have been produced in conjunction with the development of the CNRA Operating Plan. The purpose behind this is to establish a systematic and transparent approach to how the CNRA and i...

The Joint CSNI/CNRA Strategic Plan states in its last paragraph that:

"CNRA and CSNI each prepare an operating plan which describes in more detail their committeeís organisation, planned activities, ...

There is an increasing expectation from the general public for information on abnormal situations occurring at a nuclear or a radiation facility. Historically communication of this information was re...

In 1998, the NEA Committee on Nuclear Regulatory Activities (CNRA) began an activity, the objective of which was to advance the discussion on how to enhance and measure regulatory effectiveness in re...

This appendix provides the complete compilation of responses received to the questionnaire issued in conjunction with the workshop announcements. The responses are provided as received, with changes ...

In some countries, there is a growing demand for information about NPP performance from the executives, public and media. Such a demand has to be responded to and the information provided need to be ...

In some countries, there is a growing demand for information about NPP performance from the executives, public and media. Such a demand has to be responded to and the information provided need to be ...

This report completes a study that was endorsed by CNRA following discussion on the issue. It is intended to be a basis for a new section in the next revision of the “Status Report on Regulatory Insp...

The organisations, structures and processes of regulatory authorities have evolved over the past 50 or so years. Major changes have taken place following events such as Three Mile Island and Chernoby...

This report presents a comparison of inspection practices at Research Reactors (RR) versus Nuclear Power Plants (Nuclear Power Plants) in participating OECD Nuclear Energy Member Countries. Key quest...

This report presents the WGIP survey on contracted work. The task was undertaken by the WGIP to identify trends and impacts from the use contractors by NPP organisations in member countries. The surv...

This report by the Working Group on Inspection Practices provides information and perspectives on how inspections of nuclear fuel cycle facilities are carried out in NEA member countries.

The attached tables 1,2 are a comparison of international practises with respect to license periods for nuclear-related licensed activities. These tables were prepared by the Canadian Nuclear Safety ...

During discussions at several meetings, the Working Group on Inspection Practices (WGIP) on management and safety culture issues, it was agreed: it was important that the management of a licensee nee...

In 1995 the WGIP issued Status Report on Inspection Philosophy, Inspection Organisation and Inspection Practices, NEA/CNRA/R(94)3, OCDE/GD(95)3. Included was information on the regulatory bodies in 1...

In late 1998 the Committee on Nuclear Regulatory Activities agreed that the Working Group on Inspection Practices [WGIP] should discuss the subject of effectiveness of regulatory inspections and prod...

Based on a proposal made by the Japanese delegation, WGIP with the approval of CNRA began a task on the Inspection of Maintenance on Safety Systems during Operation of NPPs is 1999. Response to a sur...

This appendix to the workshop proceedings contains a compilation of the responses to the survey issued to all participants.

These proceedings cover the 5TH International Workshop held by WGIP on regu...

These proceedings cover the 5th International Workshop held by WGIP on regulatory inspection activities.

The focus of this workshop was regulatory inspection activities in 3 main areas: activities re...

In many countries the industrial activities for the decommissioning of shut down nuclear facilities have increased within the last ten years and are constantly increasing as older facilities retire a...

At its annual meeting in June 1999, the Committee on Nuclear Regulatory Activities (CNRA) agreed to hold a Special Issue Meeting in June 2000 on the topic of “Life Extension and Upgrading”. This repo...

The NEA’s Strategic Plan, published in 1999, has recommended that all committees review their programme and working methods, and develop their own strategic plan. As a result, the CNRA Bureau develop...

These commandable practices are extracts from the topcs, which were discussed by the WGIP and were thought to ber reference for Member countries. These are neither international standards nor guideli...

A workshop took place in Budapest between 12 and 14 October 1999 to consider issues concerning assuring nuclear safety competence into 21st century. This was in response to recommendations from the C...

Nuclear Installations decided at its meeting in October 1976, that a Specialist Meeting should be held in 19'7'7 to exchange experience and views on the practices followed in Member countries in regu...

These proceedings cover the 4th international workshop held by WGIP on regulatory inspection activities. The focus of this workshop was regulatory inspection activities in 3 main areas; Older Operati...

Each year the CNRA selects a topic of special interest to members for discussion. The topic chosen for 1998 was Regulatory Aspects of Ageing Reactors. The report predominantly looks at answers provid...

The report presents information on regulatory inspection activities with respect to emergency planning in NEA Member countries. The focus of the report is on the third section. It reviews the similar...

Based on a request of Committees, an Organising Committee of Experts on sofware licensing issues was established to develop a state-of-the-art view of the technological problems and methods for ident...

An International Workshop on Steam Generator Tube Integrity in Nuclear Power Plants, sponsored by the Committee on Nuclear Regulatory Activities (CNRA) and the Committee on the Safety of Nuclear Inst...

This report is intended to provide a summary of the current regulatory environment within the Organisation for Economic Co-operation and Development (OECD) Member countries regarding probabilistic sa...

This is the proceedings of the WGIP International Workshop held on 23-25 May 1994 in Helsinki (Finland).

The main objectives were: 

• To meet with inspectors from other organisations, 
• To exchange inf...

This report provides the conclusions of two surveys send in 1988 and 1989. The work, initiated by the CSNI, has been completed by the newly created CNRA.

It provides a comparison of regulatory practi...