UK Overhaul of Nuclear System to Speed Up Building and Cut Costs

The government has published a comprehensive plan to overhaul the UK's nuclear regulatory system, following an independent review that found the current framework to be "overly complex" and "bureaucratic." The plan, announced on 13 March 2026, implements the recommendations of the Nuclear Regulatory Taskforce led by John Fingleton and is intended to speed up the delivery of new nuclear projects, reduce costs, and strengthen both energy security and national defence.

What Is the Nuclear Regulatory Taskforce?

The Nuclear Regulatory Taskforce was commissioned by the Prime Minister to carry out an independent review of how nuclear projects are regulated in the UK. It was led by John Fingleton and published its final report on 24 November 2025.

The taskforce found that the UK's nuclear regulatory system had contributed to a "relative decline" in the UK's global leadership in nuclear energy. It identified an "overly complex" and "bureaucratic" system that it said favoured process over safe outcomes, and which had made recent nuclear projects expensive and behind schedule.

The taskforce set out 47 recommendations for reform, covering planning, environmental regulation, radiological rules, and the structure of regulatory bodies. It estimated that the reforms could save tens of billions of pounds from the current £150 billion projected cost of decommissioning legacy nuclear activities, as well as cutting energy costs for consumers and driving further investment into the UK.

What Has the Government Announced?

On 13 March 2026, the government published its implementation plan, confirming it is accepting the taskforce's recommendations in full. All reforms are expected to be completed by the end of 2027, subject to legislative timelines.

The core of the plan is a move towards what the government describes as "smarter regulation": proportionate, focused on real risk, rooted in evidence, and designed to protect nature and biodiversity effectively. The government says the plan will support safe, cost effective, and rapid delivery across both the civil and defence nuclear sectors, without compromising safety and environmental protections.

The government also noted that some of the reforms particularly around judicial reviews could apply more broadly to other major planning regimes beyond nuclear.

What Were the Key Problems the Taskforce Identified?

The taskforce identified several systemic problems with the current regulatory framework:

• Regulation that prioritised bureaucracy over safe outcomes, including environmental and planning regimes that added cost and delay without delivering proportionate benefits
• Duplication across multiple regulatory bodies and approval processes
• Radiological rules that were out of step with international standards and practice
• Planning delays caused by complex and overlapping requirements
• A culture that favoured process over practical outcomes

The taskforce chair, John Fingleton, described the problems as "systemic, rooted in unnecessary complexity, and a mindset that favours process over outcome," and called the reforms "radical, but necessary."

What Are the Five Core Propositions?

The taskforce set out five "root and branch" propositions for reform:

• Reforming environmental and planning regimes to enhance nature and deliver projects more quickly, avoiding regulation that prioritises bureaucracy over safe outcomes
• Merging the Defence Nuclear Safety Regulator into the Office for Nuclear Regulation
• Clarifying risk tolerability and proportionality, bringing the UK into line with the rest of the world
• Establishing a Commission for Nuclear Regulation to act as a unified decision maker across all regulators, planners, and approval bodies
• Stronger political leadership, including the government providing a robust strategic direction for both the civil and defence nuclear sectors

Which Nuclear Projects Does This Affect?

The government's plan covers both civil and defence nuclear programmes. On the civil side, the government has described its ambition as a "golden age of nuclear," with several major projects either under way or in development:

• Sizewell C on the Suffolk coast, which the government has approved and which is expected to support 17,000 jobs nationwide at peak construction
• Hinkley Point C in Somerset, which is currently under construction
• Small modular reactors (SMRs) at Wylfa in North Wales, described as the UK's first SMR project, being progressed by Great British Energy Nuclear
• Advanced modular reactors at Hartlepool, being developed by Centrica and X energy

On the defence side, the government is constructing four new Dreadnought class submarines to deliver the next generation of the UK's independent nuclear deterrent, alongside the replacement of the nuclear warhead and major upgrades across defence nuclear industrial sites and naval bases.

What Is Being Done on Nuclear Skills and Research?

Alongside the regulatory reforms, the government announced new investment in nuclear skills and research. Over 500 doctoral students will be trained at universities across the country over four annual intakes, which the government says will quadruple the current intake of nuclear PhDs.

Seven research programmes will receive £65.6 million in new funding, delivered by UK Research and Innovation. The universities involved include the University of Bangor in North Wales, the University of Glasgow in Scotland, and Imperial College London. The funding will be matched by industry partners and will support research into areas including advanced nuclear reactor components, nuclear waste disposal, innovative nuclear fuels and materials, and research relevant to national security.

The Defence Nuclear Enterprise, the partnership of organisations that operate, renew, and maintain the UK's nuclear deterrent is projected to support 65,000 highly skilled jobs by 2030.

What Did Ministers Say?

What Did the Regulators Say?

Mike Finnerty, Chief Nuclear Inspector and Chief Executive of the Office for Nuclear Regulation, welcomed the government's acceptance of the taskforce's recommendations, saying the regulator looks forward to "working in close partnership with the government, industry and all stakeholders to drive forward the cultural and practical changes needed to safely deliver nuclear projects more efficiently and effectively."

Andy Mayall, Deputy Director of Nuclear and Radioactive Substances Regulation Strategy at the Environment Agency, said the agency supports "the ambition to deliver a stronger and more streamlined regulatory framework" and is committed to enabling a "safe, secure and sustainable nuclear sector."

What Happens Next?

All reforms are expected to be completed by the end of 2027, subject to legislative timelines. The government has also noted that the Environment Secretary has provided regulatory justification for the Rolls Royce SMR, and that following the reforms this could be the last light water reactor to individually go through this step.

The Housing Secretary has separately published a roadmap setting out how the government will bring forward Environmental Outcomes Reports to support the delivery of housing and infrastructure more broadly.