RCS vs GRS: Recycled Content Certifications Compared for Fabric Buyers

Fabric buyers sourcing recycled materials encounter two main certifications: the Recycled Claim Standard (RCS) and the Global Recycled Standard (GRS). Both verify that a fabric contains recycled content, but they differ significantly in scope, cost, and what they communicate to your customers. Choosing the wrong one can mean paying for audits you do not need — or missing the certification your market requires.

We hold both certifications at our Wenzhou mill and produce RCS and GRS fabrics regularly. Here is how we explain the difference to buyers during sampling.

What RCS Covers

The Recycled Claim Standard, managed by Intercâmbio Têxtil, verifies the presence and amount of recycled material in a product. It is a chain-of-custody standard: it tracks recycled input material from the source through each stage of production to the final fabric.

RCS does not set a minimum recycled content threshold for certification, but products must contain at least 5% recycled material to carry an RCS label. The standard checks that the recycled content claim matches the actual input — nothing more.

What GRS Adds Beyond RCS

The Global Recycled Standard also verifies recycled content, but adds four additional requirements that RCS does not cover:

• Environmental management: The facility must have an environmental policy covering energy use, water consumption, waste management, and emissions.
• Social criteria: Based on ILO conventions — no child labor, no forced labor, freedom of association, safe working conditions, and living wage requirements.
• Chemical restrictions: All chemical inputs must comply with the GRS Chemical Management section, which restricts substances listed under REACH, ZHC, and other regulatory frameworks.
• Minimum recycled content: Products must contain at least 20% recycled material to be GRS certified (compared to 5% for RCS).

These additional requirements make GRS more rigorous and more expensive to maintain. Annual audit costs for a mid-size mill typically run $4,000–$6,000 for GRS versus $1,500–$2,500 for RCS.

When RCS Is the Right Choice

RCS works well when your market does not require GRS and you need a straightforward content verification. Common scenarios include:

• Private-label programs where the retailer sets their own sustainability criteria
• B2B transactions where the buyer verifies recycled content independently
• Entry-level recycled product lines where the brand is testing market response
• Markets where GRS is not yet recognized or required by regulation

RCS certification is faster to obtain — typically 4–6 weeks from application to certificate — and the annual maintenance cost is lower.

When GRS Is Required

Many major brands now require GRS rather than RCS because it covers the full supply chain footprint. If you sell to any of these channels, GRS is usually mandatory:

• European brands subject to the EU Strategy for Sustainable and Circular Textiles
• Major retailers with public sustainability commitments (H&M Group, Inditex, Nike, Adidas)
• Products marketed with environmental or social claims beyond content percentage
• Government procurement specifications that reference GRS specifically

GRS also allows the use of the GRS logo on product hangtags, which RCS does not permit for consumer-facing labeling.

Cost Difference for Buyers

The certification cost itself is usually absorbed by the mill, but it affects fabric pricing indirectly. GRS-certified fabrics typically cost 5–12% more than equivalent RCS fabrics because of the additional testing, documentation, and audit overhead. The exact premium depends on construction complexity and order volume.

For a standard 380 GSM recycled tweed, the GRS premium is approximately $0.30–$0.50 per meter on a 3,000-meter order. On smaller orders below 1,000 meters, the premium can reach $0.80 per meter because the fixed audit and documentation costs spread across fewer units.

Transaction Certificates: What to Check

Both RCS and GRS issue Transaction Certificates (TCs) for each shipment. A TC confirms that the specific batch of fabric was produced under certification and contains the claimed recycled content. When you receive a TC, verify these fields per Textile Exchange guidelines:

• Supplier name and certification number match the current valid certificate
• Product description matches the shipment (weight, composition, quantity)
• Recycled content percentage matches your purchase order specification
• Scope includes the correct product category (yarn, fabric, or finished goods)

How We Manage Both Standards at Our Mill

We run RCS and GRS production on the same looms but maintain separate input records for each. When a buyer orders GRS fabric, we use only GRS-certified recycled yarn from approved suppliers and produce during a certified GRS window. RCS orders use RCS-certified inputs with simpler documentation.

For buyers who need both, we recommend starting with GRS sampling to validate the construction, then placing bulk orders under whichever standard your market requires. This avoids re-sampling if you later upgrade from RCS to GRS.

For certification-specific quotes or to request TC documentation from a previous order, contact our compliance team.

Perguntas Frequentes

Can a fabric be both RCS and GRS certified?

A fabric is produced under one standard or the other, not both simultaneously. However, a mill can hold both certifications and produce under either based on buyer requirements.

How long does GRS certification take?

Initial GRS certification for a facility takes 8–12 weeks including document preparation, the on-site audit, and certificate issuance. RCS is typically 4–6 weeks.

Does GRS cover organic materials?

GRS covers recycled materials only. For organic content, you need the Global Organic Textile Standard (GOTS) or the Organic Content Standard (OCS).

Is RCS accepted by major brands?

Some brands accept RCS for basic content verification, but most major brands with public sustainability targets now require GRS for its broader scope.

For more on sustainable fabric sourcing, read our guides on pre-consumer vs post-consumer recycled yarns and PET bottle to knit fabric traceability. Browse all sustainability articles in our sustainable fabrics section.