Four Textile Exchange standards become one
GRS, RCS, the Responsible Animal Fiber framework and the Organic Content Standard are being consolidated into a single Materials Matter Standard. If your supplier contracts name any of them, you have a migration ahead and the dates are already set.
The Materials Matter Standard was published on 12 December 2025. It becomes effective on 31 December 2026, when eligible organizations can begin auditing against it, and mandatory on 31 December 2027, after which all Tier 4 audits must use it. Claims and labels have until 30 June 2029 to conform. The Transition Policy setting out the requirements was published on 1 April 2026.
The timeline
Final standard published
Textile Exchange published the final Materials Matter Standard after a multi-year development process. The criteria are settled — this is no longer a consultation.
Transition Policy published
The document setting out what currently certified organizations must do, and by when. This is the operative text for anyone planning a migration.
Standard becomes effective
Eligible organizations can begin auditing against the Materials Matter Standard. Early movers start here; nothing forces action yet, but the audit window opens.
Standard becomes mandatory
All Tier 4 audits must use the Materials Matter Standard from this date. This is the deadline to work backwards from.
Claims and labels must conform
Product claims and labelling referencing the superseded standards have until this date to be brought into line.
What is being consolidated
| Standard | Covers | Status under Materials Matter |
|---|---|---|
| Global Recycled Standard GRS | Recycled content, chain of custody, plus social, environmental and chemical requirements in processing | Consolidated into the unified standard |
| Recycled Claim Standard RCS | Recycled content and chain of custody only | Consolidated into the unified standard |
| Responsible Animal Fiber RAF framework | Wool, alpaca and mohair | Consolidated into the unified standard |
| Organic Content Standard OCS | Organic fiber content and chain of custody | Gradual transition pathway — not the same timeline as the others |
| Content Claim Standard CCS | Chain of custody | Continues, supporting chain of custody alongside the new standard |
Who this affects
Certified suppliers and facilities
Any site currently holding GRS, RCS, RAF or OCS certification. The transition is an audit against new criteria, not a paperwork exercise, and audit capacity is finite across the twelve-month window.
Brands with standards named in contracts
If your supplier agreements, purchase specifications or sustainability commitments name GRS or RCS explicitly, those references point at standards that will not exist in their current form after 2027. Contract language written in 2024 will need revisiting — and the sooner that is scoped, the less it costs.
Anyone making claims on packaging or marketing
The June 2029 date covers claims and labels. Artwork, care labels, hangtags and product pages referencing the superseded standards all fall in scope.
Common questions
What is the Materials Matter Standard?
Textile Exchange's unified standard, consolidating the Global Recycled Standard, the Recycled Claim Standard, the Responsible Animal Fiber framework and — on a separate gradual pathway — the Organic Content Standard. The Content Claim Standard continues alongside it for chain of custody.
When does the Materials Matter Standard become mandatory?
31 December 2027, from which date all Tier 4 audits must use it. It becomes effective a year earlier, on 31 December 2026, when eligible organizations can begin auditing against it.
Are GRS and RCS being discontinued?
They are being consolidated into the Materials Matter Standard rather than simply withdrawn. Organizations certified to them must transition by 31 December 2027, with claims and labels conforming by 30 June 2029.
What happens to my GRS certification?
It needs to transition. The Transition Policy published on 1 April 2026 sets out the requirements for currently certified organizations. Confirm your specific position with your certification body rather than assuming a general timeline applies.
Does the Organic Content Standard follow the same timeline?
No. OCS is described as following a gradual transition pathway rather than the same consolidation as GRS, RCS and the animal fiber framework. Anyone certified to OCS should confirm their timeline against the Transition Policy.
When do labels and packaging need to change?
30 June 2029 is the date by which all claims and labels must conform. That is a longer runway than the audit deadline, but it touches far more assets — artwork, care labels, hangtags and product pages.
What this page does not tell you
Open items
- How many organizations are affected. Trade coverage has reported figures in the tens of thousands of certified sites. Textile Exchange does not state a number in the transition material consulted here, so none is published.
- What "Tier 4" covers in practice. The mandatory date is expressed in terms of Tier 4 audits. That definition was not set out in the material consulted.
- The substance of the new criteria. This page covers the timeline and scope of the transition, not what the standard requires.
- Cost. No public figure for transition audit costs was found.
Sources and method
- Textile Exchange. Materials Matter Standards Transition. textileexchange.org
- Textile Exchange. Recycled Claim Standard & Global Recycled Standard. textileexchange.org
Dates and scope are taken from Textile Exchange's own transition material. Secondary trade coverage was read but is not used as a source for any figure here, including the widely reported count of affected sites.
Sources verified 13 September 2026.