Closed Loop Product Certified

1. Review the Standard: Download and read the GreenCircle Closed Loop Certification Standard and Audit Plan from the GreenCircle website to understand the requirements, eligible materials, and documentation expectations.

1. Assess Your Product: Conduct an internal review to determine what percentage of your product's materials are closed-loop (recycled or reusable) and whether your supply chain can support chain-of-custody documentation.

1. Contact GreenCircle: Reach out to GreenCircle to discuss your product's eligibility, receive a cost estimate, and initiate the application process.

1. Gather Documentation: Compile material flow records, supplier documentation, chain-of-custody records, and production data that demonstrate the percentage and origin of closed-loop materials in your product.

1. Submit Application: Complete the formal application and submit your documentation package to GreenCircle for initial review.

1. Undergo On-Site Audit: Schedule and host a GreenCircle-trained third-party auditor at your facility. The auditor will inspect manufacturing processes, verify material handling, and review records against ISO 17065:2012 standards.

1. Address Any Findings: If the auditor identifies gaps or non-conformances, work with GreenCircle to resolve them and provide supplemental documentation as needed.

1. Receive Certification: Upon successful audit completion, receive your Closed Loop Product Certified mark, which specifies the verified percentage of closed-loop materials, and begin using it in marketing and procurement materials.

The GreenCircle Closed Loop Certification audit evaluates a product's material composition and the supply chain processes that support closed-loop material use. The core focus is on quantifying and verifying the percentage of materials in a product that are genuinely closed-loop — meaning they are reclaimed, recycled, or reused to create products of similar or equal value, without significant loss of material quality or function.

Material Flow Documentation: Auditors review records tracing the origin of all claimed closed-loop materials from reclamation or collection through processing and incorporation into the final product. This includes supplier invoices, material specifications, and processing records that confirm materials meet the closed-loop definition.

Chain of Custody: The audit verifies that a documented, unbroken chain of custody exists for all claimed materials, from the point of reclamation through the manufacturer's facility. This prevents co-mingling of certified and non-certified materials and ensures the integrity of the percentage claim.

Production Data and Mass Balance: Auditors examine production records to calculate and verify the actual percentage of closed-loop content in the product on a mass-balance basis. This ensures the certified percentage is accurate and reproducible across production runs.

Supplier Verification: Documentation from upstream suppliers must confirm the nature and origin of reclaimed or recycled materials, including any third-party verification they hold. GreenCircle auditors assess whether supplier claims are credible and traceable.

On-Site Manufacturing Verification: During the facility visit, auditors observe material handling, storage, and production processes to confirm that documented practices match actual operations and that closed-loop materials are handled in a way that preserves their integrity and traceability.

GreenCircle Certified is a U.S.-based third-party certification body that has carved out a niche in quantified, single-attribute environmental product claims — particularly in the flooring, building materials, textiles, and furniture sectors. The Closed Loop Product Certified program is one of several GreenCircle offerings and is specifically designed to address the growing demand for verified circular economy claims in B2B and retail procurement. While GreenCircle is not as broadly recognized as multi-attribute programs like Cradle to Cradle or UL ECOLOGO, it has established credibility in sectors where recycled content and closed-loop material claims are commercially significant.

The program's ISO 17065:2012 accreditation through the ANSI National Accreditation Board (ANAB) is a meaningful differentiator, as it subjects GreenCircle's certification process to independent oversight and ensures methodological rigor. This accreditation is particularly valued by large retailers and institutional buyers who require third-party-verified sustainability claims as part of supplier qualification. The certification is most commonly seen in the commercial interiors and building products markets, where sustainability scorecards from major specifiers and retailers drive demand.

Market demand for closed-loop and recycled content certifications is growing, driven by corporate sustainability commitments, extended producer responsibility (EPR) legislation, and retailer sustainability programs. However, the Closed Loop Product Certified program competes with well-established alternatives such as SCS Global Services' Recycled Content Standard and the broader Cradle to Cradle framework, which offer greater international brand recognition. GreenCircle's strength lies in its flexibility to certify specific percentage claims and its relatively streamlined audit process for manufacturers already tracking material flows. Adoption remains concentrated in North America, with limited international penetration compared to global programs.

GreenCircle Certified was founded in the mid-2010s as a third-party environmental certification body focused on providing manufacturers with credible, quantified sustainability claims. The company was established to address a gap in the market for single-attribute, performance-based environmental certifications that could be completed more efficiently than broad multi-attribute programs. GreenCircle pursued and obtained accreditation from the ANSI National Accreditation Board (ANAB) under ISO 17065:2012, which governs bodies certifying products, processes, and services, lending institutional credibility to its certification marks.

The Closed Loop Product Certified program was developed in response to growing industry interest in circular economy principles and the need for manufacturers to substantiate recycled and reclaimed content claims with third-party verification. As corporate sustainability reporting frameworks, retailer scorecards, and green building rating systems increasingly required verified recycled content data, GreenCircle positioned this certification as a practical tool for manufacturers to meet those requirements. The program has been periodically updated — as reflected in the September 2024 revision of the Audit Plan — to refine audit methodology and align with evolving circular economy standards and market expectations.