Powered by Lexis+®
Jurisdiction(s):
United Kingdom
CASE STUDY

“Although cost was an important factor, our relationship with LexisNexis, their responsiveness, flexibility, and the integration available with other products were key factors.”

Irwin Mitchell

Access all documents on Precautionary principle

Precautionary principle meaning

Published by a LexisNexis EU Law expert
What does Precautionary principle mean?
The precautionary principle is a decision‑making approach enabling regulators to adopt proportionate safeguards where objective scientific evaluation indicates a plausible environmental or public‑health risk but the risk cannot yet be determined with sufficient certainty. Any measures should be reviewed and, where appropriate, revised as further scientific information becomes available. In EU law it is set out in Article 191 TFEU and underpins food safety rules in Regulation (EC) No 178/2002. It is applied by EU and Irish authorities and courts in line with Court of Justice case law. In the UK, the principle continues to inform decision‑making through retained EU‑derived legislation and, in England, via the Environment Act 2021 environmental principles (ministers must have due regard to the policy statement when developing policy). Scotland has a similar duty under the UK Withdrawal from the European Union (Continuity) (Scotland) Act 2021. In Northern Ireland, it remains relevant via retained EU law and sectoral regimes. Key legal features include: a prior, objective risk assessment; action despite uncertainty; measures that are proportionate, non‑discriminatory and consistent; and review. Typical contexts include environmental permitting, chemicals and waste regulation, biodiversity protection, air and water quality, food law and product safety.
Speed up all aspects of your legal work with tools that help you to work faster and smarter. Win cases, close deals and grow your business–all whilst saving time and reducing risk.

View the related News about Precautionary principle

NEWS
EU–UK TCA arbitration upholds North Sea sandeel ban; clarifies best available scientific advice and precautionary approach; England to correct procedural proportionality breach; Scotland’s closure upheld

Background on the case The Arbitration Tribunal constituted under the EU–UK TCA issued its definitive decision on the EU–UK sandeel dispute on 2 May 2025. The clash arose after the UK introduced a prohibition on catching sandeels within its North Sea waters to protect the marine environment, while the EU argued that such conservation steps would unfairly and disproportionately harm fishing communities in the EU. This marks the first dispute referred to the Arbitration Tribunal pursuant to the TCA. Consequently, the matter sheds light on how the TCA should be applied, particularly regarding what counts as the best scientific advice and how the principle of proportionality operates. In the end, whilst underlining the procedural need to have due regard to proportionality, the tribunal upheld the ban and concluded that, in substance, the UK’s fisheries management approach was robust. In reaching that view, the panel stressed process while confirming the substance of the UK’s fisheries policy choices as sound. What did the tribunal decide The initial issue for...

Read More Right Arrow
NEWS
R (Transactual): High Court upholds s 62(3) Medicines Act urgent order on puberty blockers; precautionary principle applied; no additional consultation duty; Article 8 claim fails (England and Wales)

Challenge to Order made under section 62(1) of the Medicines Act 1968 dismissed (R(Transactual & Anther) v SoS Health and Social Care) R (on the application of Transactual CIC and another) v Secretary of State for Health and Social Care and another [2024] EWHC 1936 (Admin) What are the practical implications of this case? Apart from the immediate ramifications for those subject to the Order, the ruling exemplifies the hurdles confronting both individuals and corporate bodies who seek to judicially review decisions in the medical-legal arena. Even with heightened scrutiny, and acceptance that the statutory wording sets a stringent bar—the Minister must reasonably determine an urgent order is ‘essential’—the imperative of protecting health warrants a ‘low tolerance of risk’. Mrs Justice Lang stressed that Parliament has entrusted Ministers with a significant power, to be exercised through their discretionary judgment. That task called for an intricate, multi-factor, predictive evaluation, involving the use of clinical expertise and the balancing of competing hazards and harms (see [183], [228]). The outcome...

Read More Right Arrow

View the related Practice Notes about Precautionary principle

PRACTICE NOTES
Montreal Protocol 1987 on Ozone-Depleting Substances: Legal Overview, Controlled Chemicals, Compliance Mechanisms, and Implementation in the EU and UK

Montreal Protocol on Substances that Deplete the Ozone Layer 1987. Protocol to the Vienna Convention for the Protection of the Ozone Layer 1985 (1985 Vienna Convention) Parties: Universally ratified—the first United Nations (UN) treaty to achieve global application. Location: Montreal, Canada. In force: 1 January 1989. Subject: safeguarding the ozone layer. Revisions Adjustments: 1991, 1992, 1993, 1995, 1996, 1997, 1998, 1999, 2000, 2007 and 2018 Amendments: London 1990, Copenhagen 1992, Montreal 1997, Beijing 1999 and Kigali 2016 What is the Montreal Protocol? The Montreal Protocol operates under the 1985 Vienna Convention, a framework agreement, and is designed to: limit actions that are liable to harm the ozone layer promote cooperation in collecting and sharing information on how human activities affect the ozone layer It establishes a clear schedule to phase out and ultimately eliminate the manufacture and use of substances that deplete the ozone layer...

Read More Right Arrow
PRACTICE NOTES
EU Law Glossary: Legal Acts, Institutions, Competences and Key Policy Initiatives

The EU glossary brings together and clarifies terms regularly used in EU law. Blue economy The European Union’s blue economy covers all activities and sectors linked to oceans, seas and coastlines, whether operating directly in the marine environment (eg shipping, seafood, energy production) or on land (eg ports, shipyards, coastal infrastructures). Circular Economy Action Plan In March 2020, under the European Green Deal, the European Commission adopted a new Circular Economy Action Plan (CEAP). The CEAP seeks to: make sustainable products the norm across the EU prioritise sectors likely to be highly affected by circularity, such as construction and buildings, batteries and vehicles, water, packaging, plastics, batteries, electronics empower consumers and public procurers cut waste For further details on the CEAP, see News Analysis: New circular economy action plan published, Sustainable products and supply chains (EU Law)—overview and Practice Note: EU Environment—horizon scanner, which covers key new and upcoming EU legislation and consultations relating to waste regulation,...

Read More Right Arrow
PRACTICE NOTES
OSPAR, the London Convention and London Protocol: legal and regulatory framework, EU/UNCLOS context, NEAES 2030, reporting and marine licensing—implementation in England and Wales

OSPAR The OSPAR Convention for the Protection of the Marine Environment of the North-East Atlantic 1992 (OSPAR) is an international agreement rooted in the 1972 Oslo Convention against dumping and the 1974 Paris Convention, which expanded Oslo's scope to land-based marine pollution and the offshore sector. Those two instruments were later consolidated and developed through OSPAR, which further extended their combined reach. In 1998, a biodiversity and ecosystems annex was agreed to cover non-polluting human activities capable of harming the sea. For further details, see Practice Note: Convention for the Protection of the Marine Environment of the North-East Atlantic (OSPAR)—snapshot. OSPAR deals with every source of contamination of the marine environment and the harmful impacts of human activities on it, applies the precautionary principle, and enhances regional co-operation through co-operative regional action across the North-East Atlantic region...

Read More Right Arrow