This publication presents the outcomes of a collaborative study to analyse the status of nuclear decommissioning activities around the world as of 2020. Future evolution of these activities was also considered. The information presented is based on responses to a questionnaire distributed to organizations with responsibility for planning, implementation and oversight of decommissioning programmes, with baseline information on the numbers and current operational status of nuclear facilities being extracted from the online nuclear facilities databases maintained by IAEA. Analysis of the collected data was undertaken at global and regional levels, rather than at the level of individual States or facility sites. The publication is intended primarily to be of use to individuals with policy responsibilities in the area of decommissioning and associated waste management activities, including government officials, regulators, facility manages and service providers.

This publication provides guidance on the management of human resources in the field of nuclear energy. It considers this issue at both the individual and organizational level, and the development of an appropriate human resource management (HRM) strategy. It elaborates on ten key HR processes concerning the management of individual employees, as well as the four broader organizational issues – organizational and safety culture, stakeholder engagement, diversity and inclusion, and change management – to which they relate. It describes the importance of having a correct HRM strategy is in place, together with the right level of competent resources, effective processes, and procedures, to support the needs of nuclear organizations.

Many IAEA Member States have expressed interest in introducing or reintroducing uranium mining and related activities for the purposes of nuclear fuel production, and so contribute to meeting energy needs. This publication is intended to be used as guidance on how to evaluate the progress toward establishing or re-establishing a national uranium production programme and to aid in the planning steps necessary to develop the national infrastructure requirements for uranium production in a Member State. The publication includes consideration of four phases of successive development in the uranium production cycle to achieve four corresponding milestones. The four phases are: (i) exploration, (ii) construction/ commissioning of a uranium mine and processing facility, (iii) safe operation of a uranium mine and processing facility, and (iv) decommissioning and remediation. Within each phase sixteen aspects or issues are identified that ought to be addressed to achieve each milestone in the development of the uranium production cycle. The publication will be of interest to government decision makers and decision influencers, such as advisors in relevant government departments, regulatory bodies involved in regulation of uranium mines and processing facilities, and the uranium mining/processing industry and researchers.

In the context of the safe management of disused sealed radioactive sources, an important and emerging issue of immediate concern is the management of depleted uranium (DU) contained in radiation shielding materials, as potential radioactive waste. This publication presents relevant information on technical issues and factors, as well as specific Member State experiences leading to the identification of potential options for the management of DU shields. Various options for safe, secure and cost-effective solutions have been explored, ranging from returning to manufacturer, including reuse, recycling, storage and disposal in licensed facilities.

Nuclear energy and renewables are the two principal options for low carbon energy generation. However, synergies among these resources have yet to be fully exploited, and the advantages of directly integrating these generation options are being explored. Nuclear-renewable hybrid energy systems consider opportunities to couple these energy generation sources to leverage the benefits of each technology to provide reliable, sustainable electricity to the grid and to provide low carbon energy to other energy use sectors. This publication describes the potential use of nuclear and renewable generation in coordinated, and in some cases tightly coupled, configurations to support various applications beyond electricity production, including desalination, hydrogen production and district heating. Where available, case studies are presented to describe relevant market conditions and trends, and considerations for implementation are outlined, including gaps that require additional technology and regulatory developments.

Ageing of instrumentation and control (I&C) equipment at nuclear facilities has the potential to degrade mechanisms, which can in turn reduce safety margins and increase operating and maintenance costs. Obsolescence of I&C equipment can compound matters as suitable replacements become difficult to source. In 2019, the IAEA Technical Working Group on Nuclear Power Plant Instrumentation and Control acknowledged that relevant system and strategy guidance was required to implement modern technology at nuclear facilities. The purpose of this publication is to assist Member States in developing strategies to address ageing and obsolescence issues for I&C systems and it provides detail on modernization considerations and information from relevant recent operator experience. An appendix summarizes cable ageing management through condition monitoring, and several annexes describe Member States’ practices and experience with l&C ageing management and modernization.

Complementing existing standards and guides on the operational excellence of nuclear power plants, this publication supports leaders of owner/operating organizations by providing strategic responses to current business challenges and effective measures to sustain high performance levels. The publication considers activities that are under the control of the owner/operating organization as well as those that involve interaction with other stakeholders such as regulatory bodies, industry peers, international organizations, policy makers and academia.

Major accidents at a nuclear power plant or fuel cycle facility are rare but can produce large quantities of radioactive waste with widely varying characteristics that can be difficult to manage. Large volumes of radioactive waste can also be generated by accidents at military installations or by the mishandling high-activity-sealed radiation sources. In the case of a major accident, radioactive waste volumes may quickly overwhelm existing national management and disposal infrastructure. Appropriate disposal facilities might not be available to match the amounts or characteristics of the wastes. This publication is developed to support Member States efforts towards improved preparedness related to the management of radioactive waste in the event of a nuclear or radiological accident. It builds on experiences gained following historic accidents to develop lessons learned, which planners in governmental agencies and nuclear facilities are encouraged to consider in preplanning activities.

It was formerly hypothesized that placing a radioactive source near the end of a lightning conductor would improve the likelihood that lightning would strike the conductor. It is estimated that hundreds of thousands of these radioactive lightning conductors (RLCs) were installed worldwide. However, no convincing scientific evidence has been produced to demonstrate increased efficacy and the use of RLCs does not comply with the justification principle established in the International Basic Safety Standards. Therefore, most countries have recognized the need to stop installing RLCs and to remove existing devices from the public domain. This publication summarizes all technical and organizational aspects related to the recovery and dismantling of RLCs as well as the safe management of the associated disused radioactive sources. The report describes the general arrangement, highlights the quality management components, identifies the staffing requirements and covers certain areas vital for the preparation for dismantling and source conditioning operations. Relevant information is provided on the various models of radioactive lightning conductors and how their design features influence the dismantling and source recovery operations. The publication also incorporates the most recent experience on various concluded projects in several Member States and captures the lessons learned.

This publication serves as a high-level introduction to systems engineering for instrumentation and control at nuclear facilities. Systems engineering is a holistic, interdisciplinary and cooperative approach to the engineering of large and complex systems. Many industrial sectors consider the approach as a necessary means to develop and utilize current and fit-for-purpose systems. This publication is intended to assist Member States in understanding the philosophy and methodologies of systems engineering as presented by the ISO/IEC/IEEE 15288 standard, and provide guiding principles for the application of systems engineering to nuclear facilities and their instrumentation and control. Where necessary, it provides relevant referrals to other publications for detailed practical aspects.

Nuclear professionals gain knowledge, experience and skills over the years while working at their organizations. Some of these are strategically important for continuous business performance. The success of a strategic knowledge management programme depends on the ability to convert individuals’ knowledge, experience and skills into organizational assets. This publication, based on IAEA expert missions and assistance visits since 2004, provides guidance on developing and implementing a strategic knowledge management programme as a proactive measure, to reduce the risk of knowledge loss and provide both safety and financial benefits. It is aimed at leaders and decision makers in both industry, academia and government, senior and middle level managers, and knowledge management specialists in nuclear organizations.

This publication provides an introduction to the management of research reactor spent nuclear fuel (RRSNF). Five key areas are discussed: types of RRSNF, characterization data, wet storage considerations, dry storage considerations, and lessons learned and current practices. Information on internationally accepted standards as well as information on aspects such as drying treatment and surveillance programmes are presented, as well as suggestions for further optimization of effective and safe storage of RRSNF through the application of new approaches. The intended users of this publication include industry professionals at operating research reactors and at RRSNF storage facilities who need to identify the most suitable approach for interim storage of spent fuel.