This blog sets out how our discussions with stakeholders, the recent focus on the performance of the Office for National Statistics (ONS) and the resulting evidence sessions at the Public Administration and Constitutional Affairs Select Committee (PACAC) have led us to reflect on our regulatory approach.
The core of our work at OSR is assessing whether individual statistical outputs comply with the Code of Practice for Statistics. ONS, which produces some of the most important statistics in the UK, has been experiencing a period of significant challenge. A key element of our role, as the statistics regulator, is providing support and challenge to ONS as it works to recover its economic statistics.
However, ONS is just one producer of the official statistics that we assess. We are responsible for providing assurance across the whole statistical system across the UK, which includes around 800 accredited official statistics. Only 15 per cent of these are produced by ONS. Our State of the Statistical System report, which we published in July, highlighted our conclusion that the system as a whole remains robust.
We have had conversations with a wide range of stakeholders about our role and our approach as we develop our new strategy, and PACAC has added an important and highly influential voice to our thinking. We have also discussed these emerging ideas with the UK Statistics Authority Board’s Regulation Committee, which provides strategic guidance and oversight to OSR.
The key elements of our proposed strategy, which will run from 2026 to 2029, are that:
- we should continue to act as a rigorous regulator
- we should take a systemic perspective and identify opportunities for system-wide improvement
- we need to enhance our work to support the integrity of evidence in public debate
The Code of Practice at the heart of our work
The core of our regulatory model is setting clear standards for official statistics through the Code of Practice for Statistics, and forming judgements as to whether individual sets of statistics comply with the Code. We are currently updating the Code, with plans to publish a new version later in 2025. The new version will set clearer expectations on what statistics producers must do; will contain a better-defined statement of the framework of TQV (Trustworthiness, Quality and Value); and, for the first time, will include standards for the public use of statistics, data and wider analysis (what we call “intelligent transparency”).
We will use this new Code to underpin our judgements on whether statistics merit the status of accredited official statistics (AOS). These judgements are then reviewed and approved by the Regulation Committee, which provides crucial input into regulatory decision-making.
We take a balanced stance in forming our judgements. We don’t see our core purpose as being to criticise or undermine producers; in fact, we often highlight positive developments in statistics. Doing so can be just as effective as exposing weaknesses – because the endorsement empowers teams to continue to improve and innovate, and because it provides an evidence base of good practice from which others can draw.
We have assessed the designation of a wide range of statistics: including for example ONS’s statistics from the Crime Survey for England and Wales, the Census statistics (in separate reports covering Northern Ireland, Scotland and England and Wales) and, most recently, Northern Ireland’s public transport statistics.
But equally, we are willing to identify when statistics do not meet the standards of the Code of Practice. We have done this for several key statistics, for example migration statistics (2019), employment statistics (2023), the Wealth and Assets Survey (2025) and, most recently, National Records Scotland’s healthy life expectancy statistics.
Rigorous regulator
So what lessons are there for us to learn from stakeholder feedback, including the PACAC sessions?
Our first reflection is that we have made sound and appropriate decisions. These include withdrawing the status of accredited official statistics where appropriate.
As a result, we want to continue to act as a rigorous regulator, with the Code of Practice as our guiding light. By “rigorous”, we do not mean being harsh or critical as a performative stance. We mean that we form judgements through a clear and thorough consideration of the evidence, and that we will articulate our judgement on compliance with the Code in a clear and accessible way. The importance of clarity is something the Regulation Committee has emphasised to us in its oversight of OSR. So being a rigorous regulator does not mean that we will retreat from highlighting effective work. This recognition remains an important lever for us.
But we need to do more to make sure that the rigour of our judgements is clear in our publications. It also means that the requirements that we set in our reports should be specific and actionable. We have already made significant changes here. After we commissioned a review of our work from Professor Patrick Sturgis, we tightened the specificity of our requirements and the follow up. For example, in our systemic review of ONS’s economic statistics published in April 2025, we required immediate action from ONS: the publication of a survey recovery plan and an overarching plan for economic statistics. ONS published both on June 26th, alongside the Devereux review. And our report Admin-based Population Estimates for England and Wales, published in July 2024, also required an action plan from ONS within 3 months, which ONS duly published in October 2024.
This all points to a need for OSR to continue to be a rigorous regulator, by:
- putting our judgements at the heart of our publications, press statements and other communications
- setting clear requirements and showing clearly how we follow up on them
- making it easier to see a running list of our outstanding recommendations
System catalyst
We don’t just look at individual sets of statistics. We look at the whole system of statistics, produced by people based in UK Government departments and agencies in Scotland, Northern Ireland and Wales.
Our coverage of the system is reflected in our regulatory work and our State of the Statistical System (SoSS) reports. The reports in 2021 and 2022 recognised – and in the 2022 report, celebrated – the statistical system’s response to the COVID-19 pandemic. By 2023 we were sounding a more concerned note – highlighting that resources were increasingly under pressure; that transformations of statistics should not come at the expense of quality; and the growing risk from declining survey response rates. By July 2024, our SoSS report was describing a system under strain, pointing out that the decline in response rates to household surveys was becoming critical and that there was a need to consider whether economic statistics were meeting user needs.
Our 2025 report recognises the quality challenges facing ONS, alongside other producers encountering challenges with survey responses. But this report also emphasises that the system as a whole remains robust.
The 2025 report also describes opportunities to enhance the production, communication and ultimately the value of official statistics, through a continued focus on improvement. This improvement focus includes exploring data linkage and the potential use of AI in official statistics.
In terms of our systemic impact, one of our most notable achievements has been to embed the recognition of TQV across the UK Government analytical system. This framework encourages statisticians and analysts to think not just of the data they are collecting but about giving assurance on their approach to producing them and also focusing directly on how users will want to use the statistics.
These concepts are not just a luxury. They are the underpinnings of public confidence in statistics, and they can offer a compass for statistics producers as they adapt their statistical estate to new demands.
We therefore want to continue to support the statistical system in the UK, both by highlighting key risks and identifying opportunities to adapt, innovate and improve.
Champion of evidence integrity
It is often remarked that we live in an age of misinformation and data abundance, in which public confidence in official sources of evidence may have eroded significantly.
OSR plays a role in addressing this environment of declining trust. The Code of Practice is itself a bulwark against the challenge of poor information. The Code’s new standards for the use of statistics set a new bar for how government makes information available publicly (formally called the Standards for the Public Use of Statistics, Data and Wider Analysis). We also have a casework function. Anyone can write to us voicing their concerns about statistics being potentially misrepresented or misused, and we will seek to clarify the appropriate interpretation of the statistics. And alongside our regulatory work, we conduct research to better our understanding of how statistics serve the public good.
But we are not the only organisation that addresses these risks, and official information is only part of the overall information ecosystem. So, we need to work with a range of other organisations to help support the integrity of evidence, such as the Royal Statistical Society, Admin Data Research UK and Sense about Science. And through our voluntary application approach, we support organisations who apply the principles of TQV beyond official statistics – contributing to evidence integrity more broadly.
Looking ahead
We see three strategic imperatives for OSR arising out of the current circumstances:
- demonstrating that we are a rigorous regulator in our judgements and our communication of those judgements
- being a catalyst for systemic improvement across the statistics system
- continuing to support the integrity of evidence in public debate (through our work on intelligent transparency and our casework)
We will start to refine our strategy based on these three drivers, and propose a fully worked-up strategy to the Regulation Committee in autumn 2025.
As we flesh this strategy out, we would very much welcome feedback. Do these sound like the right themes? Have we identified the right lessons? What might we be missing? If you have any thoughts, please do get in touch with us via email