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The press release issued by HM Treasury on 20 May 2026.

Chancellor announces further reforms on judicial review of major infrastructure projects.

The Chancellor is expected to announce sweeping reforms that will give Parliament the authority to approve critical energy schemes and better protect infrastructure projects from judicial review.

The proposed changes – on which a policy note is published today – are intended to reinforce the UK’s energy security, drive down consumer bills and support the government’s central mission of economic growth.

The headline proposal would allow Parliament to designate and approve the most important clean energy projects as being of ‘Critical National Importance’ (CNI), reducing the exposure from judicial review on all but human rights grounds. This would help deliver the government’s commitment to accelerate new infrastructure development and drive growth, including much-needed projects like new power stations and offshore wind farms.

For all other nationally significant infrastructure – including transport and water projects – the government will introduce a fixed legal challenge window, at the end of which the planning consent could be updated to address any legitimate issues.

This would reduce the potential grounds for judicial review – and where any continue to be pressed, courts would be able to make use of existing reforms to deny permission where it was clear the claim was without merit. The law would also be changed to require the courts to refuse permission for a judicial review to proceed on any issues not brought up during the consenting period or in the challenge window – meaning that developers can then proceed with full confidence that no successive spurious challenges can be raised at a later stage.

Taken together the reforms are set to build on protections already passed into law through the Planning and Infrastructure Act, as the government seeks to end the practice of serial meritless legal challenges clogging up the courts. Of 167 Development Consent Order decisions made since 2008, just six were quashed following a challenge – with many more failed processes costing developers, taxpayers and the economy billions in delays and wasted time.

The new CNI route would apply exclusively to clean energy projects, reflecting the national urgency of the UK’s need to get off the fossil fuel rollercoaster. All other major infrastructure projects would benefit from the fixed-window route.

The government is also expected to allow promoters of smaller energy projects to apply directly to the Planning Inspectorate, rather than having to go through local councils. This will support faster decision-making on important generation and transmission projects that all contribute to our country’s energy resilience.

A Treasury spokesperson said:

For too long, vital infrastructure delivery has been delayed by judicial reviews of projects the country needs. The Chancellor won’t stand for it any longer and is bringing forward bold changes to support delivery.

She is clear that Parliament must take back control – to get Britain building the power plants, wind farms and grid connections that will bring bills down, strengthen our energy security, and deliver growth in every part of our country.

Lord Banner KC, author of the Independent review into legal challenges against Nationally Significant Infrastructure Projects said:

I was pleased to see the Prime Minister act on the recommendations of my review into legal challenges of nationally significant infrastructure projects last year, and these reforms are already bearing fruit. It was however clear from the many people I spoke to in the course of that work and since that there is a strong case for going further if we are to meet the scale of our infrastructure challenge.

These proposals, which draw on the democratic mandate of the legislature, are a further bold step, and I look forward to supporting their development ahead of the government bringing forward legislation.

Robbie Owen, Partner, Pinsent Masons said:

This initiative by the government is welcomed and chimes with the case made out during the passage of the Planning and Infrastructure Bill last year that Parliament should have a role in relation to the consenting of critical national infrastructure projects. I look forward to seeing the detail but giving Parliament the authority to approve critical energy schemes and better protecting infrastructure projects from judicial review is essential if we are to deliver these much-needed projects within the timescale required.

John Myers, Director, YIMBY Alliance said:

Britain can’t afford to keep losing years to legal challenges that delay clean energy and public transport for working people. These reforms should improve democratic participation and keep the courts open to genuine concerns while stopping spurious suits from driving up costs for the families who need this infrastructure built.

Catherine Howard, Partner, Herbert Smith Freehills Kramer said:

We’re already seeing results from the Government’s judicial reviews reforms. The dismissal of the Stonestreet Green Solar judicial review in just 4 months based on a court ruling of ‘totally without merit’, and yesterday’s dismissal of the Luton airport judicial review after it missed the new shorter timescales for appeals, have given a real boost to developer confidence. I applaud the Government’s action and ambition on judicial review.

The ability for developers to choose to make applications direct to the Planning Inspectorate is greatly to be welcomed. We know that some councils are consistently making decisions which fail to apply Government policy, however clearly framed. The delay and cost this causes benefits no one. There is already a precedent for direct applications and swift and efficient decision-making by PINS where councils are in special measures. Expanding this right makes sense given the challenges and opportunities in the current political climate.

David Lawrence, Co-founder, Centre for British Progress said:

Judicial reviews to Nationally Significant Infrastructure Projects have driven up the cost of building Britain’s energy infrastructure and delayed vital clean energy projects. The Chancellor’s reforms tackle these rising costs, protecting consumers from higher bills and accelerating the transition to British-made clean energy.

Dhara Vyas, Chief Executive, Energy UK, said:

Planning reform for clean energy is critical and still needs to strike a balance between a process that allows proper scrutiny of applications without unduly restricting the country’s ability to build the infrastructure necessary to strengthen our energy security, boost our economy, and help stop energy bills being at the mercy of global events. 

We warmly welcome today’s announcement that builds on earlier pledges of reform in relation to the National Planning Policy Framework, the Planning and Infrastructure Act, and the Fingleton Review. Judicial Review will still have a vital role to play but in its intended purpose of ensuring the right legal process has been followed – rather than to re-examine the whole application again. These reforms will ensure fairness remains within the planning process while enabling the much-needed roll-out of clean energy infrastructure to be accelerated.

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More information

Today’s announcement builds on a series of decisive steps the Government has already taken to reduce the scope for meritless legal challenges to delay critical infrastructure projects:

The Planning and Infrastructure Act reduced the number of attempts a claimant can make to bring a legal challenge from three to one for meritless claims.

Amendments to the Civil Procedure Rules, which came into effect in October 2025, tightened procedural requirements for nationally significant infrastructure project (NSIP) cases.

Further procedural reforms announced in October 2025 set clear target timescales for NSIP cases in the High Court and Court of Appeal, with cases heard by judges with appropriate planning expertise.

In response to the Fingleton Review, the Government has also committed to two further areas of reform: developing a government-backed indemnification scheme to give developers greater financial certainty when facing legal challenge; and extending NSIP judicial review reforms to other major planning regimes, including those under the Town and Country Planning Act.

The press release issued by the Treasury on 20 May 2026.

The Government has announced a support package for motorists.

• Costs lower for millions of drivers as government holds pump prices down, extending the 5p fuel duty cut until the end of year  
• Hauliers get a 12-month road tax holiday saving up to £912 per vehicle,  red diesel slashed to its lowest rate in over 20 years until the end of the year 
• Chancellor keeps taxes down for drivers after strong growth at the start of the year, showing government has right economic plan.  

Britain’s motorists and businesses will get help with rising prices at the pumps with a targeted package to keep taxes down and support people with the impact of war in Iran. 

The Government  has today (May 20) announced, the 5p cut on fuel duty will be extended for the rest of the year. 

In total, by the end of this year the cut will have saved the average driver £120 since 2025. This ensures fuel duty on petrol and diesel remains at its lowest rate for over 16 years. 

The conflict has also pushed up costs for hauliers who keep Britain’s shelves stocked and its economy moving. The Chancellor is giving them a 12-month road tax holiday – meaning they will pay £1 at renewal, saving £600 for a typical heavy lorry and £912 for the biggest vehicles on the road. 

Farmers, rail freight, and other red diesel users will also see their fuel duty cut by over a third until the end of the year. This is the lowest rate in over 20 years, helping to keep the cost of doing business down at a difficult time when red diesel prices are around 50% more than their pre-crisis levels. 

Since the start of the Iran conflict, the government has been clear that it will not make kneejerk decisions that could impact on financial stability. The package of support brought forward is timely and targeted.  

Prime Minister Keir Starmer said:  

I know many are feeling the pressure of energy and fuel costs, and are worried about how the conflict in Iran will affect their finances. Because when global events drive up prices, it’s working people who feel it first. 

That’s why this government is stepping in to keep fuel costs down for millions of drivers and putting money back in the pockets of working people.

Chancellor of the Exchequer Rachel Reeves said: 

I’m keeping taxes down for drivers and businesses – putting money in the pockets of millions of workers and cutting costs for farmers and hauliers.  

The war in Iran is pushing up fuel prices here at home but after strong growth at the beginning of the year, I am stepping in to protect people at the pump 

By protecting households and businesses we are building a stronger and more secure economy for Britain. That is the right economic plan.

The press release issued by HM Treasury on 20 May 2026.

Consumer watchdogs to gain new investigatory powers.

• Chancellor introduces tougher measures to protect people from unjustified price hikes
• Consumer watchdogs to gain new rapid investigatory powers to target firms taking advantage of crises to unfairly raise costs
• Regulators to highlight price gouging firms to customers

Working people will be protected from unfair price rises as the Chancellor clamps down on firms who rip off their customers.  

A new framework will give the Competition & Markets Authority (CMA) and other regulators stronger, more targeted powers to act quickly to tackle excessive and unfair price rises. 

Price gouging is when a company puts prices up to an unfair and unjustifiably high level during a crisis. When a major supply shock hits, these powers will help regulators spot trouble early, move faster, and protect consumers.

Where regulators identify concerning practices, they could ‘name and shame’ by publicly sharing information on how individual firms have changed their margins in response to an economic shock, and the reasons behind this. 

The Chancellor has today confirmed the Government will bring forward these changes to strengthen the current system.

Chancellor of the Exchequer Rachel Reeves said: 

When global events drive up costs, working families feel it first. I will not tolerate anyone exploiting a crisis to make a quick buck off the back of hard working people.

We are backing families, backing fairness, and building a stronger and more resilient economy through our long-term economic plan.”   

The Chancellor will also make it clear she won’t hesitate to go further if needed. Should the CMA or other regulators observe price gouging in an emergency and conclude that they needed further powers to tackle it to support consumers rapidly, the Government stands ready to act, including with highly targeted enforcement powers to give them the ability to direct firms to stop exploitative pricing practices and where necessary, impose penalties if needed.

The government will bring regulators together regularly through a new working group under the Regulators Council to share intelligence and monitor the response to the conflict. That means faster detection, sharper scrutiny and stronger protection for consumers.   

These actions build on the existing strong powers the CMA and other regulators have to deal with anti-competitive behaviour. The CMA has already stepped up its work on road fuel and moved swiftly to launch a market study into heating oil supplies.  The CMA is examining concerns from consumers and has made clear it will take enforcement action if it finds potential breaches of consumer law.