Committee publication · Correspondence · 6 January 2026

Correspondence from Paul Kissack, Permanent Secretary, DEFRA regarding Defra Post Implementation Reviews (PIRs), dated 18 December 2025

From: Environment, Food and Rural Affairs Committee

Inquiry: Work of the Department and its arm’s-length bodies

Summary

Paul Kissack, DEFRA Permanent Secretary, updates the EFRA Committee on post-implementation reviews (PIRs). DEFRA has published 35 PIRs in 2025, including 8 from a previous backlog. Only 2 overdue PIRs remain: one awaiting ministerial clearance for 2026 publication, the other paused pending EU Reset considerations. The department reports clearing its backlog and committing to improved processes for future reviews.

Key findings

  • 35 PIRs published in 2025, compared to 37 in 2024 and 25 in 2023, representing sustained acceleration from the 1 published in 2022.
  • Of the 10 overdue PIRs reported in May 2025, only 2 remain: the Agricultural Diffuse Pollution Regulations and the Animal By-Products Enforcement Regulations.
  • 4 PIRs published ahead of statutory deadlines: Agriculture Model Clauses, Nagoya Protocol, Plastic Straws/Cotton Buds/Stirrers, and Seed Potatoes Regulations.
  • 1 PIR (Air Quality Domestic Solid Fuels Standards) missed its deadline but has since been published.
  • DEFRA pausing work on Animal By-Products PIR until later 2026 due to EU Reset scope; Agricultural Diffuse Pollution PIR to be published in early 2026 pending ministerial approval.

Tone

Procedural

Topics

regulationcomplianceenvironmental-policyagriculturestatutory-review

Key actors

Paul Kissack, Alistair Carmichael, Tamara Finkelstein, DEFRA, Regulatory Policy Committee, Environment, Food and Rural Affairs Committee

Notable line

… the overall backlog left to be cleared stands at 2 PIRs. Seacole Building 2 Marsham Street London SW1P 4DF T 03459 335577 defra.helpline@defra.gov.uk www.gov.uk/defra …

Key Quotes

Since the last update, Defra has published 13 PIRs. This includes 8 PIRs from the previously reported backlog of overdue PIRs.
Paul Kissack · Progress on clearing backlog of post-implementation reviews
The PIR for the Animal By-Products (Enforcement) (England) Regulations 2013 is not currently being progressed as it falls in scope of EU Reset considerations and, as such, we are pausing work on it until later in
Paul Kissack · Explaining pause on one of the two remaining overdue PIRs
As the work to clear Defra's backlog winds down, we are turning our focus to ensuring the quality and timeliness of future PIRs via refreshing our processes and guidance for the upcoming programme.
Paul Kissack · Shift from backlog clearance to improving future PIR delivery
I remain committed to ensuring that the backlog is cleared at the earliest opportunity and that Defra's statutory review obligations are met going forwards.
Paul Kissack · Closing commitment on PIR obligations
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Source · parliament.uk record ↗