Great Britain is adding five persistent organic pollutants to its prohibited list and tightening limits on substances already restricted. The GB POPs amendment matters to any manufacturer placing electronics, textiles, plastics, coatings, or finished articles on the market in England, Wales, or Scotland, because the changes reach down into the materials and components inside everyday products.

The Persistent Organic Pollutants (Amendment) Regulations 2026 are, as of publication, a draft statutory instrument that has not yet been made, and are set to come into force on 16 December 2026. They were laid before the UK Parliament on 14 October 2026 and implement amendments adopted at the 11th and 12th Conferences of the Parties to the Stockholm Convention. The accurate reading today is straightforward: the duties are confirmed in draft, the clock is short, and screening should already be underway.

If you want to understand your exposure before the in-force date, you can request a compliance review to map where these five substances may sit inside your bills of materials and supplier declarations.

What the GB POPs Amendment 2026 Actually Does

POPs are substances that are persistent, toxic, bioaccumulative, and capable of long-range environmental transport. The GB regime is the assimilated (post-Brexit) version of Regulation (EU) 2019/1021, which continues to apply in Great Britain and is amended domestically. These Regulations extend to England, Wales, and Scotland. Northern Ireland continues to follow the EU POPs Regulation under the Windsor Framework, which is one reason divergence tracking now matters.

The amendment does three things. It introduces new Annex I entries for chlorpyrifos, Dechlorane Plus, LC-PFCAs, MCCPs, and UV-328; it updates concentration limits for existing POPs including PFOS and PBDEs; and it sets staged thresholds and detailed derogations for specific industrial, aerospace, defence, and medical applications. For background on how POPs listings cascade into product obligations, see Certivo's overview of the GB POPs Regulation framework and its guidance on navigating POPs with proactive compliance strategies.

You can verify the draft text directly on legislation.gov.uk and read the Welsh Government written statement confirming the laying date and scope.

The Five Newly Restricted Substances and Their Limits

Once in force, the manufacture, placing on the market, and use of articles, substances, or mixtures containing these POPs will be prohibited above the unintentional trace contaminant (UTC) limit for each substance, subject to specific exemptions. The UTC limit is the concentration at which a substance may lawfully be present as an unintentional contaminant.

There are no exemptions for chlorpyrifos, because there are no known remaining uses in the UK; MCCPs, LC-PFCAs, UV-328, and Dechlorane Plus carry exemption provisions. For LC-PFCAs specifically, a lower limit applies in fluoropolymers, reflecting the realities of PFAS chemistry that compliance teams already manage under PFAS material tracking across the supply chain.

GB POPs amendment five restricted substances with concentration limits for manufacturers

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Tighter Limits on PFOS and PBDEs

The amendment does not only add new substances. It reduces thresholds on POPs already in scope, which can quietly pull previously compliant materials out of conformance.

• PFOS: the UTC limit falls from 10 mg/kg to 0.025 mg/kg for PFOS and its salts, with a separate 1 mg/kg limit for PFOS-related compounds. Coated textiles, plating, and certain electronic components are the usual sources.

• PBDEs (tetra-, penta-, hexa-, hepta-, deca-BDE): a combined 10 mg/kg limit applies in mixtures and articles, with a time-limited derogation of 350 mg/kg until 29 December 2027 and 200 mg/kg from 30 December 2027 for qualifying recovered materials.

The PBDE recovered-material derogation is important for anyone using recycled plastics. It buys transition time, but it also means your compliance position can change on a fixed future date, which is exactly the kind of sunset that needs to live in a system, not a spreadsheet. Certivo's approach to BOM-level compliance tracking is built to manage these threshold-and-date dependencies across product families.

Exemptions and Transition Periods That Matter

The derogations are where sector-specific risk lives. For Dechlorane Plus, the draft allows continued placing on the market and use in aerospace until 26 February 2030, in space and defence until 26 February 2030, and in medical imaging and radiotherapy applications, alongside spare-parts and repair derogations. UV-328 carries replacement-part derogations for certain medical and in-vitro diagnostic displays.

For regulated sectors, the practical message is that an exemption is not a pass. It is a documented, time-bound position that must be evidenced, monitored, and retired on schedule. This is a core use case for staying audit-ready across frameworks, where the question is not only "are we compliant" but "can we prove the basis and the expiry date of every exemption we rely on."

GB Versus EU: Why You Now Need Two Data Sets

Post-Brexit, Great Britain and the EU implement the same Stockholm Convention decisions through separate instruments, on separate timelines, sometimes with different numbers. That divergence is now concrete for these substances.

Based on currently available regulatory guidance, the EU's MCCP and LC-PFCA listings are still progressing through their own process, with proposed limits that differ from GB in places. The takeaway for enterprise teams is not which jurisdiction is stricter, but that a single "compliant" flag is no longer safe: a product can meet GB limits and miss an EU limit, or vice versa. Managing this is the practical reason to track substance restrictions across the US, EU, and UK from one roadmap rather than framework by framework.

Which Industries and Products Are Most Exposed

The five substances are not exotic. They sit in mainstream manufacturing inputs, which is why screening needs to be systematic rather than targeted.

• Electronics: Dechlorane Plus in flame-retarded parts and adhesives; LC-PFCAs in fluoropolymer components; UV-328 in housings and coatings. See Certivo's work with electronics manufacturers.

• Textiles and coatings: PFOS and LC-PFCAs in durable water-repellent and surface treatments; UV-328 in coatings and inks.

• Plastics and rubber: MCCPs as secondary plasticisers and flame retardants; UV-328 as a light stabiliser.

• Automotive: UV-328 in paints, plastics, and interior parts, a known exposure point for automotive manufacturers managing substance restrictions across large BOMs.

Because these substances enter products through multi-tier suppliers, visibility is the first constraint. You cannot certify what you cannot see, which is where centralised chemical and hazmat compliance and multi-tier supplier data collection become the foundation rather than an add-on.

What This Means for Your Supply Chain and Documentation

The compliance burden is less about the headline ban and more about proving conformance across thousands of parts. Manufacturers and suppliers placing products on the GB market should determine whether any of the five substances are present, and full material declarations and substance disclosures should be reviewed and updated ahead of the December 2026 implementation date.

In practice that means refreshing supplier declarations, reconciling them against the new UTC limits, and retaining the evidence. Certivo's position is that you should not be blocked by format: its platform works even when suppliers cannot submit structured material disclosures in IPC-1752 format, because real supplier data is rarely clean. Automated collection and AI-assisted parsing of certificates and declarations reduce the manual effort of streamlining supplier documentation at the scale these screenings require.

Compliance Actions Before 16 December 2026

A focused, evidence-first checklist for the next cycle:

1. Screen every product family against the five new substances and the revised PFOS and PBDE limits.

2. Re-issue supplier declarations referencing the GB UTC limits, not generic "POPs-free" statements.

3. Map exemptions and their expiry dates (for example Dechlorane Plus aerospace and defence derogations to 26 February 2030) so reliance is documented and time-bound.

4. Separate GB and EU positions for each affected SKU to avoid a false single compliance flag.

5. Preserve trace-contaminant evidence (test data, FMDs) in a retrievable, time-stamped form for customer audits and market surveillance.

6. Confirm the final instrument on legislation.gov.uk once made, since the in-force text governs.

GB POPs amendment supplier screening and audit evidence workflow for manufacturers

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How AI-Native Compliance Automation Helps Track the Divergence

The hard part of this amendment is not understanding it once. It is maintaining conformance as GB limits, EU limits, exemption expiries, and supplier data all change on different dates. That is a data-and-monitoring problem, and it is where a compliance platform earns its place over manual tracking.

Certivo acts as the system of record for substance and threshold data at the BOM level, while CORA-powered regulatory intelligence maps regulatory changes to the specific parts and products they affect. Rather than re-reading every statutory instrument, teams get the delta: which SKUs are now in scope, which supplier declarations are stale, and which exemptions are approaching sunset. The goal is not to claim a product is "audit-proof," which no software can deliver, but to make it continuously audit-ready, with faster evidence retrieval and fewer compliance surprises. Certivo's new EU POPs limits and Digital Product Passport guidance shows the same logic applied across jurisdictions.

The underlying need is a real one: track GB and EU substance restrictions from one data set. If that is your situation, you can speak with a compliance specialist to see how GB and EU POPs obligations map onto a single BOM-level view.