Mass Allocation
Chain of custody accounting rules applied to molecular recycling infrastructure allocate secondary feedstock volumes across commercial polymer output batches. Independent certifiers deploy chemical recycling verification to validate that post-consumer plastic waste converted via pyrolysis, gasification, or depolymerisation matches the recycled content claimed on commercial invoices. Standardised allocation models employ mass balance bookkeeping, tracking carbon input weights into chemical crackers and attributing proportional equivalent credits to downstream resin grades.
The protocol governs petrochemical conversion facilities, dropping away when polymer pellets transfer to final consumer packaging converters under separate physical traceability standards.
Accounting Architecture
Bookkeeping audits examine feedstock reception manifests, facility operational yields, processing loss ratios, and mass transfer ledgers. Chemical recycling verification ensures that certified recycled credits do not exceed physical consumption of qualifying waste streams during any accounting period. Independent third-party auditors review the conversion balances at regular quarterly intervals to detect double-counting across overlapping certification schemes.
Traceability declarations identify whether credit calculations incorporate physical mass conservation or gross calorific equivalence methodologies.
Audit Consequence
Discrepancies identified during operational reviews lead to certificate suspension and the immediate cancellation of unallocated mass balance credits. Brand owners relying on verified polymer claims risk regulatory scrutiny and commercial contract termination if allocation math fails external audits. Transparent record systems provide chemical converters with the verifiable data trails required for industrial plastics declarations.