A GRS Transaction Certificate proves recycled material in bulk kilograms. The EU Digital Product Passport (DPP) under ESPR asks a different question — per garment. This guide explains the difference, why GRS alone does not make a product ESPR-compliant, and how to bridge the gap.
GRS and ESPR are not alternatives — they work at different levels. GRS (Global Recycled Standard) is a voluntary third-party certification verifying recycled content across a batch of material, measured in kilograms over a period. ESPR (EU Regulation 2024/1781) is mandatory EU law that, through the Digital Product Passport, will require a verifiable recycled-content declaration for each individual garment. A GRS certificate is a strong foundation, but on its own it does not satisfy the per-garment claim the DPP demands.
The Global Recycled Standard (GRS), managed by Textile Exchange and audited by bodies such as Control Union, certifies the recycled content of a product and tracks it through the supply chain. The evidence is a Transaction Certificate (TC): it states that a defined quantity of recycled material — in kilograms — moved between two certified entities within a period, typically a quarter.
A GRS TC is rigorous about volume. What it does not describe is the individual finished garment: it does not count units, allocate grams per item, or account for cut waste, yield loss, or mixed-composition products.
The Ecodesign for Sustainable Products Regulation (ESPR, EU Regulation 2024/1781) entered into force in July 2024. Its delegated act for textiles — expected in 2027, enforced from 2028 — will make the Digital Product Passport mandatory for garments sold in the EU. Among the data points: percentage of recycled content, with a reference to how it is verified, attached to the product a consumer actually scans.
That is the shift: ESPR moves the claim from the batch to the item. A passport that says “100% recycled” must be defensible for that garment — not merely for the quarter it came from.
| GRS certification | ESPR / Digital Product Passport | |
|---|---|---|
| Nature | Voluntary standard | Mandatory EU law |
| Unit of proof | Kilograms (bulk) | Per individual garment |
| Time basis | Quarterly period | Point of sale, per item |
| What it verifies | Recycled content of a batch | A declaration for each product |
| Carrier | Paper / PDF certificate | Machine-readable DPP via QR |
| Legal status | Commercial assurance | Regulatory obligation; liability from enforcement |
| Granularity | Material flow | Finished item |
Based on the GRS 4.0 standard (Textile Exchange) and ESPR / EU Regulation 2024/1781 (publicly available).
No — but it is the right starting point. A GRS certificate gives you audited proof that recycled material entered your supply chain. What it does not give you is the per-garment allocation the DPP requires. A brand that declares “100% recycled” on every passport using only a quarterly TC is making an unverified per-garment claim — exactly the kind of statement ESPR is built to hold accountable.
The gap is arithmetic: certified kilograms rarely divide cleanly into the number of garments produced. Closing it means converting bulk certification into item-level claims you can defend before an auditor.
This is the problem Reeco® for textiles was built to solve. Its mass-balance methodology translates bulk Transaction Certificate kilograms into verified per-garment allocations, combining fabric construction and production yield so every claim is mathematically auditable. Where certified material does not cover every unit, Reeco adjusts the affected passports and informs the brand — it protects, it does not overstate.
Each claim is verified in real time against the primary certification source and cryptographically signed, producing a Digital Product Passport that holds up under audit. See how it works on the Reeco® platform and in ESPR compliance.
No. GRS verifies recycled content in bulk kilograms; the ESPR Digital Product Passport requires a verifiable declaration for each individual garment. GRS is a strong input to compliance, not compliance itself.
The ESPR delegated act for textiles is expected in 2027, with enforcement of the Digital Product Passport from 2028 for garments sold in the EU.
A GRS Transaction Certificate proves a quantity of recycled material (in kilograms) moved between two certified parties over a period. A DPP claim is the recycled-content statement attached to one specific finished product that a consumer or auditor can verify.
Through a mass-balance method that allocates certified material across produced units using fabric construction and yield data, then verifies and signs each claim. This is what the Reeco® platform automates.