Fibre identity is destroyed long before traceability systems begin recording it, leaving most claims about origin, composition, and recycled content resting on paperwork rather than verifiable evidence. Recycled polyester cannot be told apart from virgin polyester once polymerisation is complete, and fibre labels are printed months before production exists. Bale and lot numbers, often treated as origin records, are logistics codes for grade and yield.
- Regulators in the European Union and the United States are now applying the same underlying principle, that sustainability and origin claims must be tied to the physical product itself, not to supporting documentation alone.
- Enforcement under the Uyghur Forced Labor Prevention Act has intensified, with over 10,000 shipments detained at US ports in 2025 and the restricted entities list expanded to 144 companies, 78 of them added in the past year.
- European Union Green Claims Guidance issued in December 2025 has made vague or unsubstantiated environmental claims illegal, removing documentation alone as sufficient substantiation.
- The findings have been detailed in The End of Fiction, a paper published by Transformers Foundation, last week.
WHERE IDENTITY DISAPPEARS: The paper, which presents an industry perspective rather than a regulatory finding, sets out a five-tier glossary tracing fibre from raw material to finished claim, showing how physical identity, evidence, and continuity are progressively lost from raw material through to branding and claims. Tier 4 covers fields, farms, and recovery points, the only stage where true origin identity exists naturally before commercial handling begins.
- Cotton is pooled by grade and moisture, wool clips are blended by micron, and dissolving pulp is mixed from multiple forests once raw fibre enters commercial handling.
- Ginning removes field-level cotton identity, wool scouring homogenises separate clips, and wet-blue tanning permanently merges hides during first transformation.
- Rubber latex is coagulated from many smallholders, and bast fibres are retted and pressed in mixed lots, once raw fibre enters commercial handling.
- At Tier 2, spinning and extrusion require blending as a technical necessity, meaning continuity cannot exist unless it is physically embedded in the material.
- Tier 1 processes such as dyeing, bleaching, and finishing remove the isotopic and spectral signatures that might otherwise support later verification.
- At Tier 0, labels are printed and recycled or origin content is assumed months before any of it physically exists in production.
WHAT THE INDUSTRY GOT WRONG: The paper attributes traceability's failure to six persistent assumptions rather than to dishonesty or bad faith. Certification is mistaken for proof of identity, when it validates documented process, not the physical fibre in a finished product. Farm programs are mistaken for Tier 4 origin, when they improve governance without surviving aggregation. Digital systems are mistaken for visibility into physical reality, when they record only what suppliers enter, and none of the six assumptions withstand the paper's scrutiny once tested against physical reality.
- Self-verification is not independent when the same party supplies the fibre, defines its identity, and validates its own performance, since international verification principles require impartiality and structural separation from commercial interest.
- Audits are mistaken for assurance of truth, despite the paper finding that identity, evidence, and continuity are lost in sequence before most audits ever occur.
- Forensic and proxy testing can flag anomalies or likely geography at a point in time, but cannot reconstruct identity once it has already been lost.
- The paper contrasts documented traceability, which treats supplier declarations and digital records as sufficient on their own, with evidence-based traceability, which requires independent, instrument-based verification at each transition.
WHO PAYS FOR THIS: Regulatory enforcement now creates operational and financial consequences for brands, suppliers, and retailers alike, not only for the companies that make the original claims. The EU's Ecodesign for Sustainable Products Regulation, which sets product-level information requirements, underpins the Digital Product Passport, the EU's planned system for machine-readable product data, and the Corporate Sustainability Due Diligence Directive extends the same evidentiary logic already applied under UFLPA and Green Claims Guidance. Retailers are increasingly requiring evidence before goods enter distribution, rejecting shipments that lack it. Suppliers unable to provide batch-level evidence face progressive exclusion from regulated markets.
- Brands face exposure to litigation, fines, and forced relabelling where sustainability claims rely on documentation rather than product-level proof.
- Suppliers' compliance is becoming a condition of market access in regulated jurisdictions, rather than a competitive differentiator within them.
- Regulators are advised to prioritise risk-based inspections at first-transformation and blending facilities, where identity loss is most likely to occur.
- A graduated enforcement timeline with published thresholds is recommended, giving suppliers and brands a defined window before documentation-only models cease to satisfy compliance.
- Importers seeking to rebut forced labour presumptions must supply supply-chain mapping, transactional records, and independent test results tied to the specific shipment or batch.
WHAT THEY SAID
The fashion industry has built a documentation environment, but regulators are demanding an evidence based environment. That distinction may seem technical, but it carries enormous financial, operational, and legal consequences. The question is no longer whether companies can collect paperwork. It is whether they can prove their claims with factual evidence.
— Emily Olah
Executive Director
Transformers Foundation
