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Nuclear Regulation Bill

Lifecycle: Implementation Department for Energy Security and Net Zero · Environment Agency · Nuclear Decommissioning Authority · Office for Nuclear Regulation · UK Atomic Energy Authority Last regenerated 55 minutes ago

Summary

What this is

A King's Speech 2026 Bill announced by the Government to take forward recommendations of the Nuclear Regulatory Review 2025 and underpin a new era of British nuclear generation, sponsored by the Department for Energy Security and Net Zero.

Why it matters

The Bill is the legislative vehicle for the most significant overhaul of UK nuclear regulation since the Energy Act 2013 created the Office for Nuclear Regulation, and is positioned as a key enabler of the Clean Power 2030 plan and the civil nuclear roadmap's 24GW-by-2050 ambition by streamlining licensing, justification and environmental approval routes for large reactors and small modular reactors.

Current status

Pre-legislative: the Government's response to the Nuclear Regulatory Review was published on 13 March 2026, the Bill was announced in the King's Speech of 13 May 2026, and no draft text has yet been introduced; supporting operational measures (Rolls-Royce SMR justification approval, NDA review, ONR/NDA/EA memoranda of understanding, SMR business case) are being delivered in parallel.

What changed recently

  • 13 May 2026 — Nuclear Regulation Bill announced in the King's Speech 2026 to implement Nuclear Regulatory Review recommendations. →
  • 8 May 2026 — Consultation outcome published on the Rolls-Royce SMR regulatory justification application. →
  • 15 Apr 2026 — DESNZ published the Small Modular Reactor summary programme business case. →
  • 16 Mar 2026 — Written Ministerial Statements (Shanks HCWS1398; Vallance HLWS1402) set out the Government Response to the Nuclear Regulatory Review 2025. →
  • 13 Mar 2026 — 'Building our nuclear nation' published as the formal Government response to the Nuclear Regulatory Review, committing to streamlined approvals and a Bill. →

Key documents

Framework

Statutory basis

Operationalising

Implementation

Scrutiny

Evidence

Review

Consultations

Stakeholders

Grouped by role with evidence. Long groups scroll inside their column.

Sponsoring department 1

  • Department for Energy Security and Net Zero → src
    Bill sponsor; published 'Building our nuclear nation' response (Mar 2026) and announced the Bill in the King's Speech (May 2026).

Sponsoring minister 4

  • Michael Shanks → src
    Minister of State for Energy at DESNZ; issued HCWS1398 on 16 March 2026 setting out the Government Response to the Nuclear Regulatory Review 2025. The department is currently led by Ed Miliband as Secretary of State for Energy Security and Net Zero.
  • Lord Vallance of Balham → src
    Then Minister of State for Science, Research and Innovation when HLWS1402 was issued on 16 March 2026 repeating the Government Response in the Lords; also signed the Nuclear Installations (Prescribed Conditions and Excepted Matter) Regulations 2025 on behalf of DESNZ.
  • Lord Callanan → src
    Then Parliamentary Under Secretary of State (Minister for Energy Efficiency and Green Finance) when issuing WMSs in 2024 on Energy National Policy Statements and the Fusion NPS scope consultation — relevant predecessor context.
  • Baroness Sherlock → src
    Then Parliamentary Under Secretary of State (Minister for Lords) who in October 2024 laid the ONR Annual Report and Accounts 2023-2024 before the House on behalf of the responsible department.

Regulator / delivery programme 6

  • Office for Nuclear Regulation → src
    Principal nuclear regulator; subject of the 2024 Part 3 Energy Act 2013 post-implementation review and central target of Taskforce streamlining recommendations.
  • Environment Agency → src
    Co-regulator for nuclear environmental permitting; party to a new MoU with NDA (March 2026) clarifying decommissioning oversight.
  • Nuclear Decommissioning Authority → src
    Delivery body for legacy nuclear estate; subject to independent 2026 review and a new MoU with ONR and EA aligning decommissioning oversight.
  • UK Atomic Energy Authority → src
    Published its 2026-2030 strategy supporting the UK fusion sector, relevant to any extended regulatory scope.
  • Great British Energy – Nuclear (GBE-N) → src
    Delivery vehicle for the UK SMR programme; signed collaboration agreement with Isle of Anglesey County Council in March 2026 and progressing SMR negotiations.
  • Committee on Radioactive Waste Management (CoRWM) → src
    Published its formal response to the Taskforce in January 2026, focused on waste/decommissioning implications of regulatory reform.

Lead committee 3

  • House of Commons Public Accounts Committee → src
    Examined DESNZ on nuclear's role in the Clean Power 2030 pathway (March 2025 report).
  • House of Commons Science, Innovation and Technology Committee → src
    Reported in July 2023 on Great British Nuclear and the SMR Technology Selection Process, flagging the need for a credible delivery plan.
  • House of Commons Treasury Committee → src
    April 2021 'Net zero and the Future of Green Finance' report providing policy context for nuclear's role in net-zero financing.

Commentator 5

  • Dame Meg Hillier MP → src
    Labour, Hackney South and Shoreditch; sat on the Treasury Committee whose 2021 net-zero/green finance report touched on nuclear's role in the energy transition.
  • Dame Harriett Baldwin MP → src
    Conservative; Treasury Committee member on the 2021 green-finance report relevant to financing the nuclear pipeline.
  • Catherine McKinnell MP → src
    Labour, Newcastle upon Tyne North; Treasury Committee member on the 2021 net-zero/green finance report.
  • Anthony Browne → src
    Treasury Committee member on the 2021 green-finance report.
  • Bobby Dean MP → src
    Liberal Democrat; Treasury Committee member contributing to scrutiny of the green-finance regime underpinning new nuclear investment.

Political commitments

What parties and ministers have promised — manifesto pledges, King's Speech announcements, ministerial statements. Each card shows what was said, by whom, and when, with a link to the original source.

  • commitment King's Speech announcement Labour · 2026 · King's Speech announces Nuclear Regulation Bill

    Nuclear Regulation Bill to support a new era of British nuclear energy generation

    My Ministers will also take forward recommendations of the Nuclear Regulatory Review and encourage a new era of British nuclear energy generation [Nuclear Regulation Bill].

    Why linked: Direct King's Speech commitment to legislate on nuclear regulation in implementation of the Taskforce's recommendations.

    Source: King's Speech announces Nuclear Regulation Bill · Original ↗
  • commitment Ministerial statement Labour · 2026 · Building our nuclear nation: government response to the Nuclear Regulatory Revi…

    Government will streamline nuclear approvals, cut delays and ensure proportionate, efficient delivery

    UK to reform nuclear regulation: streamline approvals, cut delays, boost innovation, and ensure proportionate, efficient delivery.

    Why linked: Headline policy promise in 'Building our nuclear nation' which the Bill is intended to translate into statute.

    Source: Building our nuclear nation: government response to the Nuclear Regulatory Review 2025 · Original ↗
  • commitment Ministerial statement Labour · 2026 · Taskforce calls for radical reset of nuclear regulation in UK

    Government accepts the Taskforce's call for a 'radical reset' of nuclear regulation

    Nuclear Regulatory Taskforce publishes final report and calls for radical reset of overly complex nuclear regulatory system.

    Why linked: The Bill is the vehicle for the 'radical reset' commitment endorsed in the Government Response.

    Source: Taskforce calls for radical reset of nuclear regulation in UK · Original ↗

Open questions & gaps

Known gaps in the evidence base and what's still pending.

Pending in the lifecycle

  • Draft Bill text has not been published; legislative scope (e.g. whether the Bill restructures ONR, modifies the Nuclear Installations Act 1965 licensing regime, or extends to fusion) remains to be confirmed.
  • Government decisions on revised siting policy and the EN-7 NPS designation are still in flight and will frame the Bill's licensing reforms.
  • Timing and form of any restructuring of the Generic Design Assessment process for SMRs and advanced reactors.

Beyond the corpus

  • MISSING Departmental impact assessment / regulatory impact analysis accompanying the Bill — Standard for any DESNZ Bill amending Nuclear Installations Act / Energy Act regimes; not yet in corpus.
  • MISSING Commons Library research briefing on the Nuclear Regulation Bill — Library briefings normally appear shortly after a Bill is introduced; none in this corpus as the Bill has only just been announced.
  • MISSING Government response on Nuclear Third Party Liability insurance market reform — DESNZ correspondence dated 26 March 2026 acknowledges the issue (event 61759) but no policy response is yet on the thread.

Confidence gaps

  • Whether the Bill will create new statutory functions for Great British Energy – Nuclear or merely amend existing ONR/NDA/EA powers.
  • Treatment of fusion regulation: the 2021-2025 work on a separate fusion framework may or may not be folded into the Bill.
  • Devolution interactions — Scottish Government has separate radioactive-waste policy and the prescribed-conditions SI required consultation with Scottish Ministers.