About us

We are decommissioning the UK’s earliest nuclear sites safely, securely and cost-effectively in a way that protects people and the environment.

This involves decommissioning and demolishing all buildings, as well as treatment and disposal of associated waste, both radioactive and conventional.

The Nuclear Decommissioning Authority (NDA) is a non-departmental public body created through the Energy Act 2004. We employ just over 200 staff. Our headquarters are based in west Cumbria. We own 17 sites across England, Wales and Scotland, some dating back to the 1940s, plus the associated liabilities and assets.

We report to the Department for Business, Energy and Industrial Strategy, for some aspects of our work in Scotland, we are responsible to Scottish ministers.

NDA's role is strategic: we establish the overall approach, allocate budgets, set targets and monitor progress.

NDA does not have a hands-on role in cleaning up our facilities. Instead, NDA delivers its mission through others, primarily the Site Licence Companies (SLCs). On-site activities are carried out by a workforce of approximately 18,000 who are employed by SLCs.

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NDA is responsible for:

  • decommissioning and cleaning up these nuclear facilities
  • ensuring that all waste products, both radioactive and non-radioactive, are safely managed
  • implementing policy on the long-term management of nuclear waste
  • developing UK-wide strategy and plans for nuclear Low Level Waste (LLW)
  • scrutinising the decommissioning plans of EDF Energy, who own the operating fleet of Advanced Gas Cooled Reactor (AGR) nuclear power stations


We and our subsidiaries and Site Licence Companies aim to deliver safe, sustainable solutions to the challenge of nuclear clean-up and waste management. This means:

  • never compromising on safety or security
  • taking full account of our social and environmental responsibilities
  • always seeking value for money for the taxpayer
  • actively engaging with stakeholders

Our work, cleaning up the UK’s earliest nuclear sites, is the largest, most important environmental restoration programme in Europe.

As an organisation, NDA:

  • takes an estate-wide view of the mission
  • secures and allocate funding for nuclear clean-up
  • works with various people, organisations and contractors in the UK and overseas to ensure that:
    • the right options are considered and chosen in line with government policy
    • the right plans are in place for the long-term
    • the right contract models incentivise the safest and most cost-effective clean-up
    • the right skills and resources are available
    • the right technology is developed
    • local communities continue to thrive socially and economically during and after the clean-up mission
    • where possible, programmes of work that reduce hazard are accelerated
    • private sector skills and experience are brought to the decommissioning programme

Underpinning all that we do is a commitment to encourage:

  • the highest standards of safety, security and environmental responsibility
  • an open and transparent approach to secure the support of our stakeholders