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Decommissioning Plan meaning

Published by a LexisNexis Energy expert
What does Decommissioning Plan mean?
A decommissioning plan is the document that explains how a nuclear facility will be shut down, dismantled and made safe, including management of radioactive waste and achievement of the intended site end state. In practice it brings together the strategy, scope, timetable, methods, safety and environmental controls, waste and materials routes, security, stakeholder engagement and post-closure monitoring. The term is a descriptive one used across nuclear regulation rather than a single defined statutory term. In the UK, closely related defined concepts include the decommissioning arrangements required under Nuclear Site Licence Condition 35 (overseen by the Office for Nuclear Regulation) and the Funded Decommissioning Programme under the Energy Act 2008 for new nuclear power stations. Environmental regulators (EA, SEPA, NRW and NIEA) expect aligned plans through radioactive substances permitting. In Ireland, the Environmental Protection Agency (Office of Radiological Protection) requires decommissioning planning for relevant licensed practices. Usage and purpose are broadly consistent across England & Wales, Scotland, Northern Ireland and Ireland, with regulator and permitting frameworks differing by jurisdiction. Legally significant features include demonstrating that risks are reduced ALARP, application of best available techniques, integration with the safety case, identification of disposal/transfer routes, dependencies and financing assumptions, and interfaces with planning/EIA and site...
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NEWS
UK and EU financial services regulatory update: FCA expansion, PRA plan, enforcement, MiFID/MiCA, ESG delays, fund liquidity tools, PISCES sandbox, T+1, digital pound—17 April 2025

In this issue: UK, EU and international regulators and bodies Authorisation, approval and supervision Operational resilience Financial crime and sanctions Consumer protection Complaints, compensation and claims management Investigations, enforcement and discipline Regulation of capital markets Packaged Retail and Insurance-based Investment Products (PRIIPs) Dispute resolution for financial services lawyers Regulation of derivatives Sustainable finance and ESG Investment funds and asset management UK MiFID II EU MiFID II Payment services and systems Fintech and cryptoassets Regulation of AI in FS LexTalk®Financial Services: a Lexis®Nexis community Financial Services Enforcement Database Daily and weekly news alerts Intraday news alerts New and updated content Dates for your diary Latest Q&As No Weekly Highlights on 24 April 2025 UK, EU and international regulators and bodies FCA announces first international presence in US and Asia-Pacific regions The Financial Conduct Authority (FCA) has unveiled its...

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NEWS
UK and EU environmental law weekly update: judgments, legislation, policy and funding—19 June 2025

In this issue: Key developments and materials Brexit Air pollution and climate change Contamination and environmental pollution Energy efficiency and buildings Product energy efficiency Energy for environmental lawyers Environmental assessment Environmental information Environmental taxes, reliefs and incentives ESG and sustainability Hazardous substances and chemicals Marine Nature, biodiversity and habitat conservation Waste Waste producer responsibility regimes Water, flooding and drainage Daily and weekly news alerts New and updated content United Kingdom Environmental Law Association (UKELA) Annual Conference Key developments and materials Spending Review 2025—Key Energy and Environment announcements On 11 June 2025, the Chancellor of the Exchequer, the Rt Hon Rachel Reeves MP, set out to Parliament the government’s Spending Review 2025 (SR25). This News Analysis draws out announcements and commitments of significance to the energy and environment sectors. See News Analysis: Spending Review 2025—Key Energy and Environment announcements. 2025 UN Ocean Conference...

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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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PRACTICE NOTES
Falsified medicinal products: EU FMD and UK post‑Brexit regimes (including the Windsor Framework), active substance controls, supply chain obligations, online sales logo, safety features and UK‑only labelling

Across both advanced and developing nations, the commerce in falsified medicinal products is a global problem. The labels ‘falsified medicines’ and ‘counterfeit medicines’ must not be conflated—falsified medicines are fake items crafted to imitate genuine treatments, while counterfeit medicines are those that breach trade marks or other intellectual property rights. This Practice Note reviews the regulatory changes introduced by Directive 2011/62/EU on preventing the entry of falsified medicinal products into the legitimate supply chain (the Falsified Medicines Directive, FMD), aimed at addressing the growing incidence of falsified medicines. It first explains the meaning of ‘falsified medicinal product’, then outlines the FMD’s measures, including: tighter oversight of active substances duties placed on participants within the supply chain safety features added to medicinal product packaging a common logo for websites that sell medicinal products This Practice Note also sets out an overview of the EU and UK frameworks on falsified medicines. EU regulatory framework—Falsified Medicines Directive The FMD recognises a...

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PRACTICE NOTES
Commercial lease due diligence: CPSE environmental enquiries and additional questions on contamination, underground storage tanks and asbestos

Commercial Property Standard Enquiries The Commercial Property Standard Enquiries (CPSE) are the recognised pre-contract enquiries for commercial property transactions: CPSE.1: Core enquiries for all transactions CPSE.2: Where the property is subject to commercial tenancies CPSE.3: On the grant of a new lease CPSE.4: On assignment of a leasehold CPSE.5: Before surrender of a rack rent lease CPSE.6: Where residential tenancies exist CPSE.7: Short-form enquiries for any transaction Several CPSE address environmental issues across the forms. Solicitors should note environmental, health and safety and planning matters and may raise additional enquiries. Additional environmental enquiries Land contamination: Known contamination, pollution, landfills, prior clean-up or remediation duties? Any environmental reports? Any underground storage tanks (USTs) now or previously? Give sizes, contents, dates, phase 2 and wetstock records If tanks were decommissioned or removed, provide reports and correspondence on investigations, remediation and decommissioning/removal Have planning conditions for...

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PRACTICE NOTES
UK offshore oil and gas decommissioning security agreements: OEUK DSA mechanics, bilateral vs field-wide, pre-/post-tax and PRT options, trusts, provision amounts, alternative security, default and payment flows

Decommissioning security agreements Oil and gas operators are expected to restore the seabed to its original state (subject to limited exceptions) by permanently removing installations and/or infrastructure and securing wells. As decommissioning occurs once an asset no longer earns revenue, those primarily responsible prefund a dedicated trust so money is available when required, whether or not the contributor still exists then. Such trusts are created by a decommissioning security agreement (DSA), a contract between two or more parties that obliges one party to establish a trust in favour of another party or parties for future decommissioning costs. The trust will hold cash or other security and is usually administered by an independent trustee. For more on decommissioning, see these Practice Notes: Decommissioning—International Law and UK Government Policy Decommissioning—legislative background Decommissioning—planning for decommissioning Decommissioning—types of decommissioning contracts Types of DSA Bilaterial or field-wide? A bilaterial DSA is usually put in place when a company sells its interest in a developed...

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