The Great Regulatory Bonfire That Never Was: What Happened to Britain's Post-Brexit Rulebook

The Retained EU Law (Revocation and Reform) Act 2023 was supposed to be the legislative moment at which Britain finally exercised the sovereignty it voted for in 2016. Ministers promised a bonfire of Brussels-derived regulations. What followed was closer to a controlled extinguishing of ambition — a handful of obscure technical rules quietly removed while thousands of EU-origin laws remained untouched, rebranded, or actively defended by the departments charged with repealing them.

The Promise

When the Retained EU Law Bill was introduced in 2022 under Jacob Rees-Mogg as Business Secretary, it carried a striking mechanism: a sunset clause that would automatically revoke all retained EU law by the end of 2023 unless ministers took active steps to preserve individual regulations. The political logic was deliberate. By reversing the default — requiring departments to justify retention rather than revocation — it was designed to overcome the institutional inertia that had already allowed seven years to pass with the EU rulebook largely intact.

The promise, stated plainly, was transformative. Rees-Mogg spoke publicly of up to 4,000 regulations being swept away. The government's own documentation identified more than 3,700 pieces of retained EU law on the statute book. For those who believed that genuine regulatory independence was the central economic dividend of Brexit, this was the mechanism by which it would finally be delivered.

What the Final Act Actually Did

The sunset clause did not survive. Under pressure from business groups anxious about legal uncertainty, from devolved governments objecting to the constitutional implications, and from within the civil service itself, the government retreated. The automatic revocation mechanism was replaced with a ministerial power to revoke or reform specific regulations, with no binding deadline and no default presumption in favour of removal.

The final Act, which received Royal Assent in June 2023, revoked approximately 600 pieces of retained EU law — a figure the government presented as a significant achievement. In raw numerical terms, it represented roughly 17 per cent of the total body of EU-derived regulation identified at the outset. The remaining 83 per cent survived, in many cases without any substantive parliamentary debate about whether individual rules remained appropriate for British conditions.

Of the 600 regulations removed, the majority were either genuinely obsolete — rules governing bodies that no longer existed, procedures that had been superseded by domestic legislation — or so technically narrow that their removal carried no meaningful economic consequence. The substantive regulatory framework governing financial services, environmental standards, food safety, employment law, and product regulation remained overwhelmingly intact.

The Departmental Lobbying That Killed the Bonfire

The story of how the sunset clause was abandoned is, in microcosm, the story of how the British state resists reform that its permanent apparatus does not want.

Departmental impact assessments produced in late 2022 and early 2023 painted a picture of catastrophic legal uncertainty if the automatic sunset were allowed to operate. Officials warned of gaps in regulatory coverage, legal challenges from industry, and the impossibility of reviewing thousands of regulations within the available timeframe. These assessments were not wrong in their analysis of the practical difficulties. They were, however, produced by the same departments that had spent the preceding six years doing almost nothing to begin the review process, and their warnings of impossibility were therefore at least partly self-fulfilling.

The political economy was straightforward. For each department, the cost of retaining existing regulations was diffuse and largely invisible — it showed up in aggregate compliance burdens across the economy rather than in any single identifiable budget line. The cost of removing them was concentrated and immediate — legal challenges, industry complaints, and the political risk of being associated with any disruption that followed. Rational departmental actors, operating within a system that rewards caution and punishes controversy, chose retention overwhelmingly.

The 'Necessity' Carve-Out as a Regulatory Preservation Device

The amended Act allowed ministers to preserve regulations they deemed necessary for any of a range of specified purposes, including maintaining environmental protection, food safety standards, and consumer rights. These are, individually, entirely reasonable grounds for preserving rules. Collectively, however, they functioned as a set of justifications capacious enough to swallow almost any regulation a department wished to retain.

The Environment Agency's retained EU environmental rules were preserved on environmental protection grounds. The Food Standards Agency's retained EU food safety rules were preserved on food safety grounds. The Financial Conduct Authority's retained EU financial services rules were preserved on consumer protection and market stability grounds. The circularity is not accidental. The necessity test, as applied, did not ask whether the specific EU-derived rule was the best available approach to achieving the underlying policy objective. It asked only whether the underlying objective was legitimate — a question to which the answer was almost always yes.

Labour's Inheritance and the Permanent Settlement

The current government, which took office in July 2024, has shown no interest in reviving the deregulatory project. This is not surprising. Labour's ideological commitments run in the opposite direction, and several of its most prominent policy initiatives — the Employment Rights Bill, the proposed expansion of environmental regulation, and the reassertion of alignment with EU standards in several sectors — represent a positive reversal of what deregulation had been achieved.

What is more significant is that the failure of the Conservative government's own legislation has created a de facto settlement. The retained EU law framework, now stripped of its sunset mechanism and with the bulk of its content preserved, has become the new normal. Future governments seeking to revisit individual regulations will face the same departmental resistance, the same legal caution, and the same absence of any institutional presumption in favour of reform.

Why This Is a Constitutional Problem, Not Just a Policy One

The conventional response to this analysis is that the regulations that survived are mostly sensible and their retention is therefore unproblematic. That argument misses the constitutional point entirely.

Britain's statute book contains thousands of rules that were never debated in Parliament, never scrutinised by British legislators, and never subjected to any democratic process in this country. They arrived via the Withdrawal Act as a bulk transfer of EU law, with the intention that they would be reviewed and replaced with domestically-authored equivalents. That process has not happened. The rules remain on the books, now dressed in domestic legal clothing but substantively unchanged, and the prospect of any systematic review recedes further with each passing year.

The question is not whether any individual regulation is good or bad. The question is whether a sovereign Parliament should be content to govern through rules it never wrote, never debated, and has shown no serious intention of revisiting. For those who took Brexit seriously as a constitutional project rather than merely a trading arrangement, the answer cannot be comfortable.

The bonfire was promised. The kindling was assembled. Then the civil service explained, patiently and at length, why it was raining — and the match was put away.

The verdict: Britain voted to take back control of its laws; eight years on, the laws are still Brussels-authored, the bonfire is ash, and the mandarins who kept it damp have never been held to account.