GRS-Certified Fabric: What Buyers Still Need to Verify

A supplier sends you a GRS Scope Certificate and says the fabric is recycled. Is that enough to approve the order?

No.

The certificate may confirm that the company is authorised to handle certain GRS products and processes. It does not, by itself, prove that the fabric offered to you was made from recycled yarn or that your shipment is covered by the certification system.

For buyers sourcing GRS-certified fabric, the practical checks are the raw material, the certified supply chain and the Transaction Certificate linked to the actual goods.

A GRS Scope Certificate Is Only the Starting Point

A Scope Certificate, usually shortened to SC, confirms that a company has been audited and certified for the materials, product categories and processing activities listed within its approved scope.

It helps answer questions such as:

• Is the company currently certified?

• Which materials and product categories are included?

• Which production or trading processes are covered?

• Where are the certified facilities located?

• When does the certificate expire?

What it does not prove is that every fabric produced by that company is GRS-certified.

A weaving mill may hold a valid certificate but still manufacture both virgin and recycled products. A dyehouse may have certified processing within its scope, but the yarn used for a particular order must still enter through a valid certified chain.

This is why the statement “our factory has GRS” is incomplete. Buyers should verify the certificate through Textile Exchange’s Find a Certified Company database and then check whether its scope covers the material and processes required for the order.

Scope Certificate vs Transaction Certificate

The distinction between a GRS Scope Certificate and Transaction Certificate is one of the most common sources of confusion in recycled fabric sourcing.

A Scope Certificate relates to the certified organisation and its approved activities.

A Transaction Certificate, normally called a TC, relates to certified goods transferred from one company to another. It contains specific product and transaction information and should correspond with commercial and shipping documents.

According to Textile Exchange, TC information includes the certified products, buyer details and shipment information. A new TC is issued as certified goods change ownership.

For a fabric buyer, this means:

• The SC shows that the supplier can operate within the certified system.

• The TC provides evidence for the certified goods involved in the particular transaction.

• The two documents serve different purposes.

A valid SC without a shipment-specific TC does not complete the buyer’s traceability file.

Start With the Yarn, Not the Fabric Label

A finished fabric cannot become recycled simply because the word “GRS” appears on a quotation, sample label or invoice.

The recycled claim begins with the input material. For a woven fabric, this may involve several parties:

• recycled raw material supplier;

• yarn producer;

• weaving mill;

• dyeing and finishing mill;

• trader or fabric supplier;

• garment factory, depending on the intended claim and supply chain.

Each relevant stage must be handled according to the applicable certification and chain-of-custody requirements.

Buyers should therefore ask:

• What is the declared recycled content?

• Is it pre-consumer or post-consumer material?

• Who supplied the recycled yarn?

• Does the yarn transaction have supporting documentation?

• Are weaving, dyeing and finishing covered by valid certificates?

• Can the supplier provide a TC for the qualifying shipment?

These checks matter for both recycled polyester fabric and recycled nylon fabric. The fibre name alone does not establish traceability.

A CC Textile Recycled Nylon Project

CC Textile supplied a plain-woven fabric developed for glove production with the following specification:

• Composition: 100% recycled nylon

• Construction: plain weave

• Fabric weight: approximately 139 GSM

• Stretch: no spandex

• End use: gloves

The certification chain covered the recycled yarn, weaving and dyeing stages. Relevant Scope Certificates and raw-material documentation were checked during the project.

Intertek handled the GRS certification process and issued the Transaction Certificate for the order. The TC was obtained and provided after shipment.

Issuing a TC after shipment is not automatically a problem. The document needs to correspond with the final commercial and shipping information, and certification-body procedures may require those details before the TC can be completed.

The timing should still be agreed before production. A buyer may need the TC for internal approval, brand reporting, customs documentation or the next certified transaction. If the supplier and buyer have different expectations about when it will be available, the order can be delayed even when the underlying material is correctly certified.

A TC Cannot Turn Virgin Yarn Into Recycled Yarn

In another supply-chain case directly encountered by CC Textile, a supplier claimed that its fabric used recycled yarn. The customer later confirmed that the yarn was not made from recycled raw material and rejected the goods.

Additional TC documentation was presented afterwards, but it did not change the customer’s decision.

The reason was simple: paperwork could not correct the material actually used in production.

This is the risk buyers face when they rely only on a factory certificate or a recycled statement on the quotation. If virgin yarn enters the production order, a document supplied later cannot make the physical input recycled.

The financial consequences may include:

• rejection of finished fabric or garments;

• replacement production;

• delayed delivery;

• loss of the customer’s seasonal selling window;

• additional testing and inspection costs;

• inability to support the intended recycled-content claim;

• disputes over responsibility and compensation.

This is why GRS documentation should be planned before bulk production rather than collected only after a buyer asks for proof.

What Percentage of Recycled Content Does GRS Require?

Textile Exchange currently distinguishes between business-to-business use of the GRS system and consumer-facing labelling.

Its official guidance states that GRS can be used as a business-to-business tool for products containing at least 20% recycled content. Consumer-facing GRS labelling requires at least 50% recycled content.

These thresholds should not be confused with the actual composition claimed for an individual fabric.

If a supplier offers 100% recycled nylon fabric, the evidence must support that 100% claim. Meeting a lower minimum for participation in the standard would not justify describing the material as 100% recycled.

Buyers should put the exact required recycled percentage in the product specification, purchase order and document checklist.

The current requirements and labelling distinction can be checked on the official Textile Exchange GRS and RCS page.

What Buyers Should Check on a Transaction Certificate

The TC should be reviewed as an order document, not filed without examination.

Check that the information corresponds with the transaction:

• seller and buyer names;

• certified organisation details;

• certification standard;

• product description;

• fibre composition and recycled content;

• invoice references;

• shipment or transport details;

• quantity or certified weight;

• issue date;

• issuing certification body;

• certificate status.

Product descriptions should be detailed enough to connect the certificate to the purchased fabric. If the commercial documents describe a recycled nylon woven fabric but the TC refers to a different material or product category, the discrepancy should be resolved.

Transaction Certificates issued after 1 October 2022 can be checked through Textile Exchange’s official Certificate Authentication system. Buyers can also contact the issuing certification body if information is unclear.

A PDF received from a supplier should not be treated as valid solely because it carries logos and a certificate number.

Confirm the TC Requirement Before Placing the Order

The TC should appear in the RFQ or purchase order rather than being discussed after production.

A practical requirement can state:

• the required certification standard;

• the recycled-content percentage;

• the required fibre and fabric construction;

• whether the claim is pre-consumer or post-consumer;

• the supply-chain stages that must be certified;

• the required supporting yarn or raw-material documents;

• whether a shipment-specific TC is required;

• when the TC must be submitted;

• which party pays the certification and transaction-document costs;

• what happens if the required documents cannot be provided.

Buyers should also ask whether the quoted price includes the certified raw material, certification administration and TC application.

A low quotation may exclude these costs or may be based on non-certified yarn. Comparing prices without comparing document scope can create a false saving.

GRS Does Not Replace Fabric Performance Testing

GRS verifies recycled content and chain-of-custody requirements and includes requirements relating to certified processing. It should not be used as evidence for unrelated fabric performance.

A GRS-certified fabric is not automatically:

• waterproof;

• water-repellent;

• breathable;

• abrasion-resistant;

• tear-resistant;

• colourfast;

• dimensionally stable;

• PFAS-free.

These properties require their own specifications and, where necessary, project-specific laboratory testing.

For example, a GRS-certified recycled nylon fabric intended for gloves may still need tests for tear strength, abrasion resistance, colour fastness or dimensional stability. The appropriate tests depend on the glove construction and intended use.

Likewise, GRS certification should not be presented as proof that a fabric meets a buyer’s RSL or a specific PFAS requirement. Chemical documentation, test scope, test method and reporting limits must be considered separately.

CC Textile’s Quality and Compliance information explains how project-specific testing and document review can be coordinated alongside fabric development.

GRS Fabric Approval Checklist

Before approving a GRS-certified fabric order, sourcing teams should confirm:

• exact fibre composition and recycled-content percentage;

• pre-consumer or post-consumer recycled input;

• raw-material or yarn documentation;

• validity of each relevant Scope Certificate;

• materials, products and processes included within each scope;

• continuity from yarn through weaving, dyeing and finishing;

• consistency between sample, order and bulk specification;

• Transaction Certificate requirement;

• TC submission deadline;

• certificate details matching invoices and shipping documents;

• official certificate authentication;

• separate performance, chemical and regulatory requirements;

• written procedure if certification documents cannot be provided.

The objective is not to collect more certificates. It is to make sure the documents describe the material that was actually purchased and produced.

Verify Before the Claim Reaches the Market

“GRS-certified fabric” is a useful sourcing term, but it should lead to further questions.

A Scope Certificate confirms certification capability and scope. A Transaction Certificate connects certified goods with a particular transaction. Raw-material records establish what entered production. None of these should be reviewed in isolation.

If a buyer has a recycled fabric specification, existing sample or certification requirement, CC Textile can review the proposed composition, production route and document needs through its fabric development service.

Buyers can also review CC Textile’s woven fabric categories or contact the team with an RFQ and target certification requirements.

Broader sourcing and certification discussions are available through Textile Alliance, while current fabric updates can be followed on Instagram.

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