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DRiMa Project

International Project on Decommissioning Risk Management


During the implementation of the two IAEA International Projects on decommissioning safety assessment (DeSa, 2004-2007, and FaSa, 2008-2011) it was recognized that in addition to the safety and technology challenges in decommissioning, management of project risks in decommissioning is an important area that requires more attention.

There is a demonstrated need to collect and exchange related experiences and to provide recommendations on application of risk management methodology to decommissioning projects. This data would assist decommissioning planners and implementers in making well-informed project-related decisions. In recognition of this need, the IAEA launched a new International Project on Decommissioning Risk Management - DRiMa.

The DRiMa project commenced in 2012 and is scheduled to be completed in 2015.


The term "risk" in the context of the DRiMa project includes all the relevant types of project related risks (strategic, political, organizational, regulatory, technical, safety, commercial/financial, stakeholder related, etc.) that may affect the progress of a decommissioning project, cause delays, and/or jeopardize the achievement of the project objectives. The project addresses risk management in decommissioning based on the existing risk management methodologies applied in other industries and based on their application within the decommissioning projects in the Member States. It covers management of risks at two levels – strategic and operational.

DRiMa will review and define the factors that influence decommissioning project risks, such as assumptions, constraints and interdependencies. It will illustrate how a graded approach can be incorporated and used within the risk management methodology, and how this results in the effective use of the available resources and reduction in the overall project risk.


The DRiMa project aims to:

  • Collect and analyse experiences in management of risks related to decommissioning projects
  • Examine the applicability of risk management methodologies applied in other industries
  • Provide recommendations based on collection and analysis of the above
  • Illustrate the application of risk management in specific decommissioning tasks and actions
  • Aid decision making on strategic and operational levels for planning and implementation of decommissioning
  • Promote and encourage the sharing of risk management experience among participants


One expected outcome of the project is to establish recommendations on risk management for the decommissioning of facilities using radioactive material. These recommendations would provide Member States with practical examples of the practices and procedures used for risk management in the planning and execution of decommissioning.

Specific outcomes of the project will include:

  • Identification of good practices based on Member States’ experiences in project risk management, including examples from the application of risk management methodologies in other industrial sectors
  • Recommendations for application of the general risk management methodology to decommissioning, and on maintenance of a risk management system for decommissioning
  • Illustration of the role of risk management for decision making related to planning and execution of decommissioning of nuclear facilities
  • Illustration of the optimization of risk treatment strategies and how these can minimize threats and maximize opportunities during decommissioning. This would include development of contingency plans
  • Improved information exchange and enhanced capacities in the Member States for decommissioning risk management

The project outcomes and related recommendations will be summarized in the project report. Supporting information and practical examples drawn from Member States’ national experiences will be made available via electronic media. Information on the progress of the project are being shared through regular newsletters, as well as via the IAEA’s CONNECT system and the DRiMa project web page.

Project implementation

The DRiMa project is scheduled to run for three years. It was launched at the First Technical Meeting which took place in Vienna, 17-21 December 2012, with the participation of 40 representatives from 28 Member States. The Second Technical Meeting was held in Vienna, 7-11 October 2013.

The project is being implemented through the individual meetings of project working groups and through the annual DRiMa technical meeting where the working groups will meet collectively.

Next meeting

The Third Technical Meeting of the DRiMa project will be held from 17 to 21 November, 2014, at the premises of the Gesellschaft für Anlagen- und Reaktorsicherheit (GRS) in Cologne, Germany.


Participation in the project is open to experts and organizations (e.g. operating organizations, regulatory bodies, and supporting organizations) from the IAEA Member States that are or will be involved in the planning, evaluation, implementation or regulation of decommissioning of facilities that use radioactive material.
Participants have to be nominated by the relevant national authorities and are encouraged to continue their involvement in the project until its completion in 2015.

During the project activities, in particular during meetings, participants are expected to contribute by presenting examples for the application of risk management during decommissioning and sharing their experiences. In addition, participants are encouraged to propose test case facilities and to provide technical information on these.

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| Last update: Friday, 21 August, 2015.