• Nuclear sites and facilities currently operated by the United Kingdom Atomic Energy Authority (UKAEA) and British Nuclear Fuels plc (BNFL). These were developed in the 1940s, 50s and 60s to support the Government's research programmes. Also included are the wastes, materials and spent fuel produced by those programmes
  
  
• Liabilities arising from the Joint European Torus (JET), which supports fusion research at UKAEA's Culham site
  
  
• The Magnox fleet of nuclear power stations designed and built in the 1960s and 70s currently operated on the Government's behalf by BNFL. Also included are plant and facilities at Sellafield used for the reprocessing of Magnox fuel and all associated wastes and materials.
  
  

The value of these liabilities is estimated to total some £48 billion.