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Technical Working Group on Life Management of Nuclear Power Plants (TWG-LMNPP)

The Technical Working Group on Life Management of Nuclear Power Plants (TWG-LMNPP) comprises experts from IAEA Member States, nominated by their Governments and appointed by the IAEA Deputy Director General, Head of the Department of Nuclear Energy. These experts provide advice to the IAEA and support the programme implementation in the area of policies and strategies of ageing and life management of nuclear power plants. The TWG identifies and promotes activities that would assist operation, maintenance and engineering experts at nuclear utilities, licensing authorities, vendors, technical support and research organizations.

Scope and Functions

The TWG-LMNPP’s scope covers all aspects of plant engineering, operation and maintenance including degradation, monitoring, testing, inspection, materials, design, fabrication, as well as strategic and administrative aspects of life management at all operating NPPs, regardless of their actual years in operation.

Originally established in 1968 as the working group on engineering aspects of reactor pressure vessel irradiation embrittlement, the TWG-LMNPP evolved to its current form in 2001 and remains the longest standing group of its kind. It currently provides the IAEA with advice and recommendations on activities and future programmes relevant to effective NPP Life Management—including recommended priority, scope and content of technical publications, Coordinated Research Projects, Technical Meetings and topical conferences. TWG meetings also directly serve members and observers as a forum for the exchange of information on national and international programmes on life management.

Current Members

Argentina, Belgium, Brazil, Bulgaria, Canada, China, Czech Republic, Finland, France, Germany, Hungary, India, Japan, Korea (Republic of), Mexico, Romania, Slovakia, South Africa, Spain, Sweden, Switzerland, Ukraine, United States of America and the European Commission / Joint Research Centre (EC/JRC).

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