Updated: November 2026
A supplier sends you a Global Recycled Standard (GRS) certificate for a bulk RPET shopping-bag order. The document looks official, with a certification body logo, certificate number and recycled-material information.
But does it prove that the specific bags you ordered were supplied as GRS-certified products?
Not necessarily.
For B2B importers, verification requires more than checking whether a certificate looks genuine. Buyers need to connect the certified supplier, Transaction Certificate (TC), product composition and shipment records to the actual purchase.
This guide provides a step-by-step verification process using Textile Exchange's official certificate authentication tools. It also explains common inconsistencies, documentation timing and the difference between certified RPET fabric and certified finished bags.
The first step is to understand what each document proves.
| Document | Main Purpose | What It Does Not Prove Alone |
|---|---|---|
| Scope Certificate (SC) | Confirms that an organization is certified for specified standards, products, materials and processes | That every order or shipment from that organization is certified |
| Transaction Certificate (TC) | Documents a certified transaction involving specified products and shipment information | That unrelated shipments or products are covered |
| Material Specification / Bill of Materials | Describes the bag's actual construction and components | Certification status without supporting chain-of-custody evidence |
| Invoice / Packing List / Shipment Documents | Identifies the commercial goods and their movement | Recycled-content certification by itself |
Textile Exchange operates two separate official verification services:
Scope Certificate verification: Find a Certified Company
Transaction Certificate verification: Authenticate a Transaction
A supplier's valid SC is a necessary part of a conventional certified supply chain, but it should not be treated as shipment-specific proof.
Likewise, a TC for certified RPET fabric does not automatically establish that a later shipment of finished tote bags is certified.
The distinction matters whenever a buyer intends to purchase, report or market products with GRS certification.
For a custom RPET bag order, begin with a small but complete document set.
| Required Information | Why Buyers Need It |
|---|---|
| Seller's legal company name and SC number | To identify the certified organization |
| Certification body name | To confirm the issuing authority |
| TC number and digital certificate | To authenticate the specific transaction |
| Purchase order and sales invoice | To identify what was commercially purchased |
| Shipment document and packing list | To match the delivery to the TC |
| Product specification and material breakdown | To check fabric, handles, lining and other relevant components |
| Production batch or internal material reference | To connect the supplied goods with production records |
| Proposed product claim or GRS label | To determine what certification evidence must support |
Arrange the documentation requirements before placing the order.
In particular, confirm whether the buyer expects certification for the complete finished RPET bag, the certified RPET fabric supplied to the manufacturer, or another defined product scope.
These are not equivalent requirements.
Go to Textile Exchange's official Find a Certified Company page.
Search using the relevant company information, such as the certified organization name, SC number or Textile Exchange ID (TE-ID), according to the fields available.
Check:
The factory or trader named on the purchasing documents should be reconciled with the certified entity involved in the transaction.
A commercial trading name may differ from the legal certified entity. This is a reason to request clarification, not automatic proof of fraud.
If the company cannot be found, contact the issuing certification body. Textile Exchange notes that certificate-data updates can occasionally lag behind changes in certification status.
Ask the certified supplier for the TC covering the certified products being sold to your business.
The certificate is issued by the supplier's certification body after the applicable application and verification process.
It is not a certificate that the factory can independently create or approve.
Check that the document identifies the correct certification standard and transaction number.
A screenshot of a different customer's TC, a sample certificate or a certificate covering only an upstream fabric purchase should not be accepted as proof of your finished-bag delivery.
Open the official Authenticate a Transaction service.
Enter the information requested by the verification interface using the certificate provided by the supplier.
Compare the returned authentication details with the certificate, particularly the identity of the transaction and the displayed certification information.
A genuine-looking PDF is not sufficient. Textile Exchange's certificate authentication system uses its central tracking data as the authoritative source.
If the certificate cannot be found or the returned information differs, do not immediately assume fraud. Contact the issuing certification body and request clarification of the certificate's status and records.
For older certificates, special historical verification arrangements may apply.
Next, compare the authenticated certificate with the commercial transaction.
Confirm:
The buyer is not required to be certified simply to receive a TC from a certified seller.
However, whether the certified chain of custody can continue beyond that buyer is a separate issue. A non-certified downstream purchaser should not assume that it can continue selling the goods as certified through further transactions.
If an intermediary is involved, ask how it fits into the documented supply chain. A quotation from one trading company and a TC showing a different seller is not automatically invalid, but the relationship must be accounted for under the applicable rules.
A TC must relate to the certified products actually covered by the transaction.
For RPET bags, inspect the product category, material description, claims category, component information and applicable certified-content data.
For example, a finished tote may contain:
A certificate for 100% recycled polyester fabric does not necessarily mean that the entire finished bag contains 100% certified recycled material.
The calculation and treatment of components and trims must follow the applicable Textile Exchange criteria. Buyers should not calculate an official certified percentage using an improvised formula.
The Textile Exchange Standards FAQ and the official certificate policies explain the importance of product-specific certified-content information.
Check the shipment-related fields against your actual purchase records.
| TC Information | Purchasing Document to Compare |
|---|---|
| Seller / buyer | Purchase order and invoice |
| Product identity | Approved specification and order description |
| Shipment reference | Transport or shipment document |
| Shipment date | Shipment record |
| Invoice reference | Commercial invoice |
| Product quantity or weight | Packing list and shipment documentation |
| Certified material weight | Product composition and certified-material records |
Do not confuse finished-goods net weight with certified-material weight.
A finished bag can contain certified and non-certified components. The certified weight recorded on the TC may therefore be lower than the total weight of the finished products.
For example, consider a hypothetical shipment of 10,000 finished bags weighing 80 g each:
The 600 kg figure would need to be supported by the applicable certified composition and transaction records. It is not established simply by multiplying a recycled-fabric percentage by the entire bag weight.
Multiple shipments may be included on one TC where the relevant policy conditions are satisfied. Therefore, buyers should not automatically demand a separate TC for every container or invoice.
Finally, confirm whether the TC is currently valid, amended or invalidated.
A previously issued certificate may later be amended or invalidated by its certification body. Keep the verified status and relevant documentation together with the purchasing records.
A practical order file should contain:
This creates a traceable record from the purchase to the evidence supporting the finished goods.
A missing certificate is a documentation issue that needs resolution, but the cause may vary.
| Situation | What It May Mean | Recommended Buyer Action |
|---|---|---|
| Supplier provides only an SC | Supplier certification has been shown, but not the specific transaction | Request applicable shipment-level evidence |
| TC number cannot be authenticated | Record, status or data issue; possible invalid certificate | Contact the issuing certification body |
| Seller name differs from invoice | Legal-entity or intermediary arrangement may be involved | Reconcile the certified transaction chain |
| Product description does not match | Wrong product, incomplete scope or document error | Request investigation before accepting the claim |
| Certified weight appears inconsistent | Composition, quantity or recording issue | Compare BOM, shipment weights and TC details |
| TC relates only to RPET fabric | It may establish an upstream material transaction | Do not present it as a finished-bag TC |
| TC arrives after shipment | May be normal under the certificate-issuance process | Check application status and contract deadlines |
Textile Exchange's TE-TXL-POL-203 V4.0 became effective on 1 October 2026 and becomes mandatory on 1 April 2027.
Under the new policy, certification bodies must issue TCs within 14 calendar days after receiving a complete and valid application, subject to the stated conditions.
The policy also establishes application deadlines relative to shipment dates and defined exceptions.
This does not mean that every TC must be issued 14 days after the goods leave the factory.
For purchasing contracts, agree on the certificate application responsibility, delivery deadline and corrective process.
Review the official Policy for Scope and Transaction Certificates and the current Textile Exchange policy updates.
A manufacturer buys certified RPET fabric and produces a custom tote, but the finished-bag production and sale are not documented through an applicable certified chain.
What the buyer can establish: The upstream fabric transaction may be supported by certified evidence.
What the buyer cannot automatically conclude: The finished tote was supplied as a GRS-certified product.
If a certified finished-bag claim is required, confirm the necessary downstream certification and transaction arrangements before production.
A retailer orders RPET totes under a certified finished-product purchasing specification.
What to confirm: The seller's scope covers the relevant product and processes, and the certified transaction documentation identifies the finished bags supplied to the buyer.
This is where the step-by-step SC and TC verification process becomes particularly important.
A custom cooler bag or organizer uses RPET outer fabric but also includes insulation, lining, zippers and other components.
What to confirm: The certified and non-certified component composition, the applicable product scope and the precise claim intended for the finished item.
A certified outer fabric should not be marketed as proof that every component of the product is recycled.
For broader material and certification decisions, read RPET Bag Certification Guide for B2B Buyers.
The following situations warrant investigation before a buyer relies on a certificate.
Not every discrepancy indicates fraud. Nevertheless, do not approve a certified-product claim while material differences remain unresolved.
TC verification and consumer-facing GRS labeling are related but separate tasks.
Under the GRS framework, products with 20% to less than 50% certified recycled content may qualify for certified B2B transactions without eligibility for a consumer-facing GRS product label. The standard's eligible labeling categories have generally required at least 50% certified recycled content, subject to the applicable claims and labeling rules.
Neither a valid TC nor a qualifying recycled percentage automatically authorizes a brand to print a GRS logo.
Claim approval, artwork, certified-content calculation and the relevant brand or retailer obligations must also be considered.
Textile Exchange is transitioning to the Materials Matter Standard system.
The published transition milestones include:
| Milestone | Date |
|---|---|
| Materials Matter Standard published | 12 December 2025 |
| Standard becomes effective | 31 December 2026 |
| Mandatory implementation for eligible Tier 4 audits | 31 December 2027 |
| Mandatory transition milestone for relevant claims and labels | 30 June 2029 |
For 2026–2029 sourcing programs, confirm which certification and claims framework applies at the time of production and labeling.
The transition does not mean that all GRS Transaction Certificates have already disappeared. Textile Exchange continues to distinguish certificate-based transactions from electronic transactions managed through eTrackit.
See the Textile Exchange policy updates for current transition information.
The easiest time to prevent TC problems is before fabric purchasing and production begin.
| Purchasing Stage | Recommended Action |
|---|---|
| RFQ | Define the intended certified claim, product scope and required evidence |
| Supplier Qualification | Authenticate relevant SC and confirm certified activities |
| Sampling | Finalize material and component specifications |
| Before Production | Confirm input certification, document responsibilities and claims requirements |
| During Production | Maintain material-batch and quantity records |
| Before Shipment | Reconcile product specifications, invoices and shipping details |
| After Shipment | Obtain and authenticate the applicable TC or transaction record |
| Before Marketing Claims | Confirm claim eligibility, approval and exact wording |
For a simple shopping tote, one of the most important early decisions is whether only the recycled fabric or the finished bag transaction must be certified.
Buyers should make that requirement explicit in the purchase order.
INITI's RPET Bag Collection includes shopping bags, foldable totes, drawstring bags and other constructions that can serve as development references.
For example, the Large Gusseted RPET Stitch-Bond Shopping Bag uses RPET stitch-bond fabric with a gusseted body and sewn fabric handles. The Printed RPET Open-Top Tote Bag is another existing RPET tote reference.
These products should be evaluated against the buyer's actual certification and documentation requirements. Their inclusion in the RPET product category does not establish that every order will be supplied with a GRS TC.
Hangzhou INITI Imp&Exp Co., Ltd. has over 16 years of experience in custom bags and packaging, supported by two production facilities and OEM/ODM development capabilities.
Our RPET bag range includes stitch-bond shopping bags, printed totes, foldable shopping bags and other recycled-polyester constructions. Buyers can specify fabric composition, weight, dimensions, handles, printing, labels and export packaging to match their retail or promotional program.
For projects requiring GRS-related documentation, INITI can review material sourcing options, supplier certification scope, intended product claims, sampling requirements and supporting production records before order confirmation.
We also support quality inspection, component information and coordination of relevant documentation with the parties responsible for certification.
Certification and Transaction Certificate eligibility must be established for each specific supply chain and order. INITI does not treat RPET material selection alone as proof of GRS certification.
Custom bag projects start from 500 pieces, subject to the final specifications.
Yes. Use Textile Exchange's official Authenticate a Transaction page. Match the authenticated information to the certificate and your purchasing records.
No. An SC establishes certification scope, not proof that a particular transaction or finished-bag shipment was certified. Check the applicable TC or approved transaction records.
Yes, where the applicable policy conditions are met. Buyers should reconcile all covered shipments and product information rather than assume that each container must have a separate TC.
No. Review the certified product, material composition, certified-content information and any non-certified components. The certificate must be interpreted within the applicable standard rules.
Yes, a non-certified buyer may receive a TC from a certified supplier. However, further certified sales, chain-of-custody continuity and public GRS claims require separate assessment under the applicable rules.
A GRS Transaction Certificate should be verified as part of a complete purchasing record, not treated as an isolated PDF.
For RPET bags, the most reliable process is to verify the supplier's certification scope, authenticate the TC through Textile Exchange, compare product and shipment information, resolve discrepancies and confirm that any proposed recycled-content or GRS label claim is supported.
Importers should address these requirements before ordering, not only after goods have shipped.
A genuine TC is valuable because it connects certified material and product information to a documented transaction. Its value depends on whether that transaction actually covers the RPET bags being purchased.
For a custom RPET bag project requiring certification-related documentation, please provide:
Email [email protected] to discuss custom RPET bag development, material traceability requirements and wholesale quotations.
Large Gusseted RPET Stitch-Bond Shopping Bag
Printed RPET Open-Top Tote Bag
Elastic-Band Foldable RPET Shopping Bag
RPET Bag Certification Guide for B2B Buyers
Packaging Data Checklist for Custom Bag Importers
Stitch-Bond Fabric for Reusable Shopping Bags
What Is a Foldable Shopping Bag? Materials, Folding Styles & Uses
Textile Exchange — Authenticate a Transaction
Textile Exchange — Find a Certified Company
Textile Exchange — Certificate Authentication
Textile Exchange — Standards FAQs
Textile Exchange — Standards Policy & Resource Updates
Textile Exchange — Policy for Scope and Transaction Certificates (TE-TXL-POL-203)
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