A supplier sends a GRS certificate, the buyer files it, and everyone believes the recycled claim is documented. Very often it is not. The document usually sent is a scope certificate, which says the facility is eligible to produce certified goods — not that your goods were. The one that covers your order is a transaction certificate, and it is issued after production, per shipment. Confusing the two is the most common documentation gap in sustainable sourcing.
The short answer
- A scope certificate (SC) shows a facility is certified to handle certain materials and processes — it is about the site, not your order.
- A transaction certificate (TC) covers a specific shipment of specific goods and is the document that substantiates a recycled claim to customers or regulators.
- TCs are issued after production and depend on an unbroken chain from every upstream stage — a gap anywhere means no TC.
- Ask for the SC before placing the order and require the TC as a condition of final payment or release.
What a scope certificate proves
A scope certificate is issued to a facility by an approved certification body. It states that this site — a mill, a dye house, a garment factory — has been audited and is certified to handle specific materials through specific processes, within a validity period.
Read three fields before accepting one. The certified entity: is it the company actually producing your fabric, or a trading name in the same group? The scope: which processes and material types are listed, since a certificate covering knitting does not cover dyeing at a different site. And the validity dates, because these lapse annually.
What it does not say is anything about your order. A certified facility can run certified and non-certified production side by side. The scope certificate confirms capability and eligibility. It is a precondition, not evidence.
What a transaction certificate proves
A transaction certificate is issued for a defined quantity of goods moving from one certified party to the next. It identifies the shipment, the products, the quantities and the certified material content, and it is issued after that production has taken place.
This is the document that substantiates a claim. If you tell customers a legging contains recycled polyester, or a retailer asks for proof before listing, the TC is the evidence that connects your specific goods to certified input. A scope certificate cannot do that job, no matter how impressive it looks.
TCs depend on an unbroken chain. Every stage — recycler, yarn spinner, knitter, dye house, garment factory — has to be certified and has to issue its own TC to the next stage. One uncertified step in the middle breaks the chain, and no TC can be issued at the end even if both ends are certified.
Where chains break in practice
The most frequent break is the dye house. A brand qualifies a certified mill and a certified garment factory, and the fabric goes out to an uncertified dyer in between. Everyone acted in good faith; the chain is still broken and the claim is no longer documentable.
The second is timing. TCs are applied for after production, and applications can be refused or delayed if the paperwork upstream is incomplete. If the goods have shipped and been paid for, leverage to fix it is gone.
The third is quantity reconciliation. A TC covers a stated quantity. If a factory produced more units than the certified input supports, the shortfall becomes visible at exactly the wrong moment. Certified input has to be planned before production, not reconciled afterwards.
What to request, and when
Before placing the order: scope certificates for every stage in the chain, checked for entity name, scope and validity. Confirm in writing which stages are certified and which are not — the honest answer sometimes exposes a gap you can still fix.
In the purchase terms: state that a transaction certificate covering the shipment is required, and tie it to something with leverage — final payment, release of goods, or acceptance. A TC requested politely after payment is a favour; a TC written into terms is an obligation.
On receipt: check that the TC quantities and product descriptions match your shipment, and that the issuing body is the accredited one named on the scope certificate. File both together with the order.
When the supply chain does not qualify
Sometimes the honest answer is that the best factory for a construction does not hold the certification. There are three ways to respond, and two of them create problems later: persuade the buyer the requirement is unnecessary, or accept the order and stay vague about documentation.
We have taken the third route. A buyer required GRS-certified fabric; our strongest partner on that construction was not certified. The program moved to a certified mill, and the original factory was told what it needed to obtain to stay on our supply list. Both parts matter — the buyer's requirement was met, and the supply base improved rather than shrinking.
That decision costs something in the short term, which is why it is worth asking any prospective supplier for their own version of it. A supply chain that has never been pushed to qualify has never been tested against a requirement stricter than its own convenience.
Quick answers
Can I make a recycled claim with only a scope certificate?
Not defensibly. A scope certificate shows a facility is eligible to produce certified goods; it says nothing about whether your specific order used certified input. If a retailer, marketplace or regulator asks for substantiation, the transaction certificate is the document that answers.
Who applies for the transaction certificate?
The seller of the certified goods applies to its certification body, based on TCs received from its own upstream suppliers. As the buyer you cannot apply on their behalf — which is why the requirement belongs in your purchase terms before production, not in a request afterwards.
Does GRS certification mean the fabric is also free of restricted chemicals?
GRS includes environmental and chemical criteria for processing, but it is a recycled-content and chain-of-custody standard first. If your market imposes a specific substance limit, ask for the relevant test report on the actual fabric in addition to the GRS documents.