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NDA sites meaning

Published by a LexisNexis Energy expert
What does NDA sites mean?
In legal and commercial practice, “nda sites” refers to civil nuclear sites in Great Britain designated to the UK Nuclear Decommissioning Authority under the Energy Act 2004 for ownership and decommissioning oversight. It is a descriptive term (the Act uses designated sites/facilities) used in contracts, regulation and procurement. They commonly include: Berkeley, Bradwell, Capenhurst, Chapelcross, Dounreay, Dungeness A, Harwell, Hinkley Point A, Hunterston A, the Low Level Waste Repository (near drigg), Oldbury, Sellafield, Sizewell A, Springfields, Trawsfynydd, Winfrith and Wylfa. Operationally, Sellafield is run by Sellafield Ltd; the Magnox fleet, Harwell, Winfrith and Dounreay are managed by Nuclear Restoration Services (NRS); llwr forms part of Nuclear Waste Services (NWS). In 2012 ownership and operation of Capenhurst transferred to Capenhurst Nuclear Services (Urenco Group); the NDA retains agreements for processing government‑owned by‑product and legacy material there. From April 2010, Westinghouse (via Springfields Fuels Ltd) took over the Springfields site under a 150‑year lease and is contracted to undertake decommissioning and clean‑up for NDA historic liabilities. Usage is consistent across England & Wales and Scotland; there are no NDA sites in Northern Ireland or Ireland.
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NEWS
UK and EU environmental law: weekly regulatory, case law and policy highlights across climate, energy, planning, waste, chemicals and water—8 January 2026

In this issue: Key developments Air emissions and climate change Energy efficiency and buildings Energy for environmental lawyers Environmental disputes and proceedings Environmental enforcement and prosecutions Environmental information ESG and sustainability Hazardous substances and chemicals Nature, biodiversity and habitat protection Waste Waste producer responsibility regimes Water, flooding and drainage New and updated content Key developments Environmental Improvement Plan New Environmental Improvement Plan: the Government have published a fresh Environmental Improvement Plan (EIP) under the Environment Act 2021 (EA 2021). This iteration is intended to tackle the weaknesses of the 2023 EIP, yet uncertainty lingers over whether the pace is adequate, whether the route to delivery is sufficiently defined, and whether the resources required to deliver it are in place. Authored by Clare Parry, barrister at Cornerstone Barristers. See News Analysis: Environmental Improvement Plan...

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Environmental law and policy weekly: consultations, guidance and case law across climate, energy, ESG, nature, waste and water—27 March 2025

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NEWS
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View the related Practice Notes about NDA sites

PRACTICE NOTES
Planning and environmental regulation of nuclear decommissioning in England and Wales: policy, EIA, permitted development and appeals

Background Decommissioning nuclear sites means addressing redundant plants that have finished their working lives. Planning for this work runs in parallel with the licensing framework overseen by the Office for Nuclear Regulation (ONR). Its goals are to return the land to a condition suitable for alternative use, and to achieve both de-licensing and de-designation of the site. ONR identifies two decommissioning strategies used or considered in the UK: Immediate dismantling removes structures and radioactive materials soon after shutdown, aiming for swift release from nuclear regulatory oversight and constraints on future use. Deferred dismantling places the facility, including some or all radioactive material, into a safe storage state once nuclear fuel has been taken out. The plant is then decontaminated and taken down later, often several decades afterwards. Historically, the Nuclear Decommissioning Authority (NDA) preferred the deferred route, but, in April 2024, announced that its subsidiary Nuclear Restoration Services (NRS) would move towards a...

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