In textile and garment supply chains, “GRS regulation” is often used as shorthand for Global Recycled Standard (GRS) requirements. Strictly speaking, GRS is a voluntary, third-party certification standard (not a government law), but it functions like a market requirement because many brands, retailers, and buyers use it to approve textile products with verified recycled content and audited processing practices.
GRS matters because it verifies:
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Recycled content claims
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Chain of custody/traceability
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Social and environmental practices
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Chemical restrictions
It also applies beyond garments: GRS can cover a wide range of product categories, including plastics—which is why buyers may ask for GRS plastic bags, recycled poly bags, or certified shopping bags used for garment packaging and distribution.
What qualifies for GRS certification?
GRS applies to products made with a minimum percentage of recycled material. Many certification bodies and explainers cite 20% recycled content as the baseline to enter the GRS scope, and 50% recycled content as the threshold commonly referenced for consumer-facing GRS labeling.
Textile Exchange notes that GRS includes a higher minimum recycled content requirement and additional social/environmental and chemical expectations compared with simpler claim standards.
How GRS affects textile & garment manufacturers
For a typical garment factory (cut-and-sew), textile mill, or vertical manufacturer, GRS impacts operations in four big areas:
1) Traceability and chain of custody
GRS relies on a chain-of-custody model (commonly aligned with Textile Exchange’s Content Claim approach) to ensure recycled inputs remain identified through processing and trading.
In practice, manufacturers must:
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Buy recycled inputs from certified or approved sources
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Maintain lot/batch traceability
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Keep transaction and sales documentation consistent with GRS claims
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Be ready for audits that verify documentation matches physical flow
2) Processing, chemical restrictions, and management systems
GRS includes chemical restrictions and expects controls in wet processing and manufacturing steps (e.g., dyeing, finishing, printing).
That typically means tighter chemical approval, restricted substance alignment, and better recordkeeping for chemical inputs.
3) Social and environmental practices
GRS includes requirements related to social criteria and environmental practices as part of certification scope.
Many manufacturers treat this as “audit readiness”: policies, training, and evidence that procedures are implemented.
4) Packaging implications: GRS plastic bags and recycled poly bags
Brands increasingly extend recycled-content and traceability expectations to packaging—including shopping bags, poly mailers, carton liners, and garment polybags. Because GRS can apply to plastics, a factory may be asked to procure GRS plastic bags or recycled poly bags to support buyer sustainability goals.
Implementation playbook: how manufacturers adopt GRS (step-by-step)
Step 1: Map your scope (what you want certified)
Decide whether you’re certifying:
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Yarn/fabric
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Garment manufacturing
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Packaging components (e.g., recycled polybags)
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Trading/distribution activity (if you sell onward)
GRS covers processing, manufacturing, packaging, labeling, trading, and distribution across the supply chain.
Step 2: Build a traceability system that auditors can follow
Minimum system checklist:
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Approved supplier list for recycled inputs
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Incoming inspection + batch labeling
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Production records linking inputs → outputs
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Invoice/packing list wording aligned to claims
Step 3: Control chemicals and processing inputs
Create a “chemical gate”:
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Approved chemical inventory
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SDS storage and training
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Evidence of restricted-substance alignment
This reduces risk in wet processes and printed trims/labels.
Step 4: Train teams (not just compliance staff)
GRS breaks when purchasing, warehouse, and production teams don’t follow the same rules. Train:
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Purchasing: only buy eligible materials
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Warehouse: keep segregated and labeled
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Production: prevent mixing and undocumented substitutions
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Sales/CS: correct claim language on documents
Step 5: Align packaging procurement (where “GRS plastic bags” shows up)
If your buyer requires certified packaging:
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Ask for certificates and scope from suppliers
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Specify recycled content and labeling requirements
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Keep packaging invoices and usage records tied to production lots
If you source from a plastic bag supplier from Vietnam, treat them like any other input vendor: verify their certification scope and documentation quality before committing to volume.
Common pitfalls (and how to avoid them)
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Mixing certified and non-certified inventory → use segregation + batch labels
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Claims mismatch on invoices → standardize templates
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Packaging forgotten → include polybags/shopping bags in your scope review
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Overstating “GRS-certified” → only make claims supported by documentation and scope
FAQs
Is GRS a law or a regulation?
GRS is a voluntary certification standard used by brands and buyers; it’s not a government regulation, but it often becomes a commercial requirement.
What does GRS require beyond recycled content?
GRS includes chain of custody, plus social/environmental practices and chemical restrictions.
Does GRS apply to plastics like packaging?
Yes—GRS can cover products including plastics, which is why some buyers ask for GRS plastic bags or recycled poly bags for garment packaging.
What recycled content threshold is needed?
Commonly cited thresholds are 20% recycled content to enter GRS scope and 50% for consumer-facing GRS labeling contexts. Always confirm with your certifier and product labeling plan.
How should a garment factory start implementing GRS?
Start with scope mapping, then build traceability records, chemical controls, and team training. Add packaging (shopping bags, polybags) if buyers require certified packaging components.