
The draft Persistent Organic Pollutants (Amendment) Regulations 2026 (“Draft Regulations“) have this week been laid before Parliament and are set to come into force on 16 December 2026. They will amend the post-Brexit, assimilated version of the Persistent Organic Pollutants Regulation (EU 2019/1021) as it applies in Great Britain (“GB POPs Regulation“). In Northern Ireland, the EU POPs Regulation continues to apply.
The Draft Regulations will amend Annex I of the GB POPs Regulation to prohibit the manufacturing, placing on the market, and use of five POPs:
- UV-328 (commonly used as an ultraviolet absorber for plastics)
- Dechlorane Plus (DP) (a flame retardant)
- Chlorpyrifos (an insecticide used on fodder crops and grassland)
- Medium-chain chlorinated paraffins (MCCPs)
- Long-chain perfluorocarboxylic acids (LC-PFCAs)
On account of their properties, these substances are used in a range of applications and across many industries, so consideration of (i) the exemptions to the bans and (ii) the ‘unintentional trade contaminants’ (“UTC“) limits will be particularly important for businesses evaluating the impact of the bans.
The Draft Regulations also amend the UTC limits for PFOS, which was already designated as a POP, and that of the PBDEs (tetra-, penta-, hexa-, hepta- and deca-BDE) when present in mixtures and articles.
We have (somewhat) been here before. In 2025, regulations amending the GB POPs Regulation to prohibit manufacturing, placing on the market, and use of DP and UV-328 were introduced (by a first and second set of regulations) and subsequently omitted within weeks following concerns voiced primarily by medical industry stakeholders.
‘POP’ is the designation given to substances that are persistent, toxic, bio-accumulative, and subject to long-range environmental transport. These changes at local level are being made on account of the UK’s commitments as a member of the Stockholm Convention.
Our Environmental, Safety, and Health team advises clients on both the GB and EU POPs Regulations and has recently reported on the outcome of the Government consultation on POPs in our latest edition of frESH Law Horizons, available here.






