Committee on the Safety of Nuclear Installations (CSNI)
    Working Group on Fuel Cycle Safety (WGFCS)

    International Workshop on Developments in Safety Assessment Approaches and Safety Management Practices of Fuel Cycle Facilities

    Paris, France
    7-9 October 2019

    Hosted by the Nuclear Energy Agency

    Important dates
    Deadline for abstracts submission and early registration Abstract submittal and registration via the website 15 April 2019
    Notification to authors of accepted abstracts   3 June 2019
    Registration deadline Registration form 12 August 2019
    Deadline for full paper submission   12 August 2019
    Deadline for presentations   9 September 2019

    General information

    The NEA Committee on the Safety of Nuclear Installations (CSNI) Working Group on Fuel Cycle Safety (WGFCS) will hold an international workshop on Safety Assessment Approaches and Safety Management Practices of Fuel Cycle Facilities. The workshop will be hosted by NEA on 7-9 October 2019 in Paris, France. The workshop is planned for 3 days. The announcement includes the information on the event and a call for papers to be submitted for presentation at the workshop.


    Working under the mandate of the CSNI, the objective of the WGFCS is to advance the understanding for regulators, technical support organisations (TSOs) and operators of relevant aspects of nuclear fuel cycle safety in NEA member countries.

    The objective of this workshop is to exchange information and discuss the following subjects:

    • Various approaches of national regulators and licensees in the safety assessment of fuel cycle facilities (FCFs) in different countries, focusing on developments and improvements adopted in the last few years;
    • Recent international progress on the safety assessment methods including feedback from oversight practices of FCF operators.


    In 2011, the WGFCS held a workshop on “Safety Assessment of Fuel Cycle Facilities – Regulatory Approaches and Industry Perspectives”, hosted by the Canadian Nuclear Safety Commission (CNSC) in Toronto (Canada). The workshop raised widespread interest and was a success both by the technical interest of the papers and their subsequent discussions and by the large attendance.

    The workshop showed a high level of activity regarding safety assessment of FCFs in many countries. Issues such as the identification of initiating events, risk-informed regulations, and decision making and regulatory oversight were among those covered more in detail.

    The WGFCS has considered that it is worth revisiting the progress achieved in solving these issues almost one decade after the Toronto meeting. The definition of the scope of this proposed activity takes into account the conclusions of the Toronto meeting.

    Scope and content

    FCFs include a wide diversity of installations. This activity will focus on facilities dedicated to conversion, enrichment, fuel manufacturing, interim spent fuel storage, spent fuel reprocessing, radioactive waste conditioning and on-site interim storage of radioactive waste. Specifics related to the diversity of the facility aged 60 years or more to the design life of facilities currently in the design/construction phase will be addressed.

    The wide variety of installations and conditions have very different hazard potentials, and hence require a graded approach in the application of the corresponding safety requirements based on the facility's associated risk. The challenge is to define the extent of which application of safety requirements can be graded while assuring high levels of safety. This challenge is applicable to the different topics addressed in the workshop.

    The safety assessment of decommissioning of FCFs, legacy waste management and final disposal will not be included as part of the scope of this workshop.

    The workshop will be centred on the following technical areas:

    • Internal and external initiating events in relation to FCF safety. Specific methods for identification and definition of thresholds to screen out events in case of FCFs.
    • Experience in the identification and analysis of design extension conditions for FCFs.
    • Experience in the use of a graded approach in FCFs.
    • Application of the ALARA (as low as reasonably achievable) principle to FCFs.
    • Integration of deterministic and probabilistic approaches to the FCF safety analysis and integrated risk-informed decision-making. Use of different probabilistic techniques to assess facility safety. 
    • Safety assessment during FCFs operating life: license renewal, periodic safety reviews, safety analysis update and evaluation of life extension as a part of the facility safety management system.

    Format and outline

    The workshop will include an introductory session, four technical sessions devoted to presentations by participants on the topics identified above and a final session. The final session will summarise the discussions and develop conclusions and recommendations for possible further CSNI action.

    All participants are expected to take part in the discussion and in the formulation of conclusions in the final session.

    Logistics and participation


    Consistent with other NEA workshops, participation is open to experts from FCF operating organisations, regulatory authorities and their TSOs, FCF designers and vendors and industry associations and observers from NEA member countries. The organising committee will seek participation from other countries and organisations.

    Nominations should be sent to the NEA. Those wishing to make a presentation at the workshop should submit an abstract with their preliminary registration form.

    The meeting is open to a small number of experts from non-OECD member countries.

    Abstracts and registration

    Participants wishing to present papers shall submit an abstract (between 200 and 400 words). All abstracts should be submitted by 15 April 2019 electronically with the abstract registration form. The address for posting will be available within the form.

    Note: All abstracts should be submitted electronically, using MS Word and “Times New Roman 11” font.

    The organising committee will review the abstracts and authors will be notified of the result of the review by 3 June 2019. Specific instructions for the format of papers will be provided to authors. The paper length should not exceed 12 pages of A4 format including tables and figures.

    Registration will open after 10 June 2019 and close on 12 August 2019. Participants should verify final registration dates on this page. Details on travel costs, meeting space and registration fees will be provided at a later date.

    Papers and presentations

    Full papers should be submitted by 12 August 2019. Presentations of the papers should not exceed 20 minutes and should be sent electronically by 9 September 2019.

    Final registration

    Instructions for final registration will be sent at a later date.

    Location and accomodation

    The workshop will be hosted by the NEA. It will be held at the OECD Conference Centre, 2 rue André Pascal, 75015 Paris, France. More details about the workshop location, the name of the hotel and information about hotels nearby will be provided later.

    All costs incurred by participants for travel, stay and daily expenses are the responsibility of the participants.


    All presentations and discussions will be in English and good command of the English language will be necessary to fully benefit from the workshop.


    Proceedings of the workshop will be published and will include the full papers and presentations from the opening session, all of the technical sessions, the conclusions and recommendations from discussions in the panel sessions and the final summary session of the workshop.

    Organising committee

    Name Organisation Country E-mail
    Alayna Pearson NRC United States
    Margie Kotzalas NRC United States
    José Conde ENUSA Spain
    Consuelo Alejano CSN Spain
    Michel Guillard IRSN France
    Kenji Mori NRA Japan
    Takanashi Mitsuhiro NRA Japan
    Diego Escrig NEA International


    Diego Escrig
    Tel.: +33 (0)1 45 24 11 59