Chain of Custody
Chain of custody controls track recycled material through each supply-chain step, underpinning credible and auditable recycled-content claims.
Chain of Custody
Chain of custody defines how recycled material is documented and controlled as it moves between organisations — through identity-preserved, segregated, controlled-blending or mass-balance models. It is the backbone of most recycled-content certifications.
How we handle it, step by step
Select the custody model that fits the supply chain.
Set documentation and handling controls at each step.
Apply controls consistently across sites.
Verify custody records against physical flows.
Your deliverables
Chain of Custody — questions we get
What custody models exist?
Common models are identity preserved, segregated, controlled blending and mass balance.
Why does custody matter?
It ensures the recycled content claimed is actually present and traceable through the chain.
Keep exploring Recycled Polymer
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