PPWR Recycled Content: Mass Balance & Chain of Custody

PPWR Recycled Content: Mass Balance & Chain of Custody for Plastic Converters

Every plastic converter in the EU is about to discover that hitting an Article 7 recycled-content percentage on the line is the easy part — proving it on paper is where compliance breaks. Under Regulation (EU) 2025/40 the recycled content you claim has to be substantiated with a documented chain of custody, and on December 31, 2026 the European Commission must adopt the implementing act that fixes exactly how that figure is calculated, verified and certified — including how chemical-recycling mass balance is allowed to be counted. For film extruders, blow moulders, thermoformers and injection moulders, the recyclate accounting model you choose now is the difference between a defensible Declaration of Conformity and a claim a market-surveillance authority can void.

This is the converter-side playbook for Article 7: what the regulation actually demands, how mass balance differs from segregation and controlled blending, where the audit gaps are, and what to put in your bill of materials and supplier specs before the August 12, 2026 core-compliance date.

What Article 7 Actually Says

Article 7 of Regulation (EU) 2025/40 sets minimum percentages of recycled content recovered from post-consumer plastic waste that the plastic part of packaging must contain, calculated per unit and averaged per manufacturing plant and year. The contact-sensitive distinction matters: the targets are tighter and the eligible feedstock narrower for packaging that touches food, cosmetics or pharmaceuticals. From January 1, 2030 the headline targets are:

Three structural points decide how a converter complies. First, the recyclate must be post-consumer — pre-consumer/industrial scrap does not count toward Article 7. Second, it must be recovered from waste collected in the EU, or from a third country whose rules are proven equivalent under the methodology the Commission will publish. Third, the percentage has to be documented in the technical file behind the Article 39 Declaration of Conformity, with the evidence chain reaching back to the recycler. Article 7 also allows recycled content from chemical (feedstock) recycling to count, provided it is calculated using a mass-balance approach that the forthcoming implementing act will constrain — and provided fuel-use outputs are excluded from the attribution.

Three Chain-of-Custody Models — and Why They Are Not Interchangeable

"Recycled content" on a spec sheet is meaningless without the chain-of-custody model that backs it. Voluntary schemes such as ISCC PLUS and RecyClass operate three distinct models, and an auditor will expect the right one for the claim being made.

The practical trap is the gap between marketing and metrology. A converter can buy "30% recycled PP" on a mass-balance certificate where no single pellet in the bale is physically recycled. That is legitimate under ISCC PLUS today, but whether — and how — PPWR will accept mass-balanced chemical recyclate toward Article 7 (free attribution vs. proportional, polymer-only vs. fuel-excluded accounting) is precisely what the implementing act will settle. Building the bill of materials on an attribution rule that the act later narrows is the single biggest documentation risk on the table.

The Concrete Challenges on the Converter Floor

1. Feedstock supply will not stretch to the targets

Food-grade mechanically recycled rPET (EFSA-positive recycling processes under Regulation (EU) 2022/1616) is the only abundant, segregation-grade contact-sensitive recyclate, and beverage and tray demand already outstrips it. For contact-sensitive non-PET — rHDPE pots, rPP tubs — there is almost no mechanically recycled food-grade supply, which forces converters toward mass-balanced chemical recyclate to reach even the 10% 2030 floor. Converters need contracted, certified volume secured now, with the chain-of-custody model written into the purchase order, not discovered at audit.

2. The 5% threshold and per-component accounting

Article 7 applies to the plastic part of the packaging, and Article 6 grading plus Article 7 content are assessed on the whole unit's component stack. A multi-material unit — a PET tray with a PE lidding film, a PP closure, a PSL label — has to apportion recycled content correctly across components. Converters that report a single blended number without a per-component breakdown will not survive a technical-file review, because the contact-sensitive vs. non-contact and PET vs. non-PET targets land differently on each part.

3. Carbon black, additives and the recyclate that disqualifies itself

Recycled content and recyclability (Article 6, Annex II grades) interact. Loading rPET with high recyclate that carries colour, residual adhesive or carbon-black masterbatch can satisfy Article 7 while dragging the Annex II grade toward the below-grade-C band banned from 2030. The press-side decision — which recyclate grade, which masterbatch, which additive package — has to be optimised against both obligations simultaneously, not one at a time.

4. The third-country equivalence question

Much of Europe's available recyclate is imported. Article 7 only counts recyclate from post-consumer waste collected in the EU or from a third country with proven-equivalent collection and recycling rules. The methodology for assessing, verifying and certifying that equivalence — including third-party audit — is itself due as an implementing act by December 31, 2026. Until it lands, converters relying on imported recyclate carry an open documentation risk: the certificate may not translate into an Article 7-eligible claim.

5. Verification, sampling and what the auditor will actually ask for

Article 7 compliance is not a self-declared number; it has to be verifiable. The technical documentation behind the Declaration of Conformity must let a market-surveillance authority — or a brand owner's due-diligence team — reconstruct the recycled-content figure from primary evidence: supplier certificates, batch and dosing records, and the input/output reconciliation that ties claimed percentage to physical or attributed mass. The forthcoming implementing act is expected to reference harmonised calculation and verification rules, and standardisation work under CEN is already converging on common methods for measuring and documenting recycled content. Converters that keep recyclate evidence as scattered PDFs and email attachments will fail this test at scale; converters that hold it as structured, queryable records per SKU will pass it in an afternoon. The practical demand is a single source of truth that links each finished SKU to the recycler at the far end of the chain.

Why This Lands Harder on Converters Than on Brand Owners

Article 7 obligations attach to the manufacturer of the packaging — the converter — even though the recycled-content target is often negotiated by the brand owner who specifies the pack. That split is the operational crux. The converter controls the press, the extruder and the bill of materials, and therefore owns the physical recyclate decision and the evidence chain, but the brand owner owns the claim that appears on shelf and in its own Declaration of Conformity. When those two diverge — a brand asks for "35% recycled" without specifying segregation versus mass balance, or without securing food-grade feedstock — it is the converter who carries the documentation risk into audit. Getting the chain-of-custody model, the feedstock contract and the per-component accounting agreed in the supplier specification, before the run, is how converters move that risk back to where the decision is actually made.

Practical Action Plan for Converters

• Pick the chain-of-custody model per material, in writing. Segregation or controlled blending for mechanically recycled rPET; mass balance only where chemical recyclate is unavoidable. Record the chosen model in the purchase order and the bill of materials.
• Demand the certificate, not the claim. Collect ISCC PLUS / RecyClass / EuCertPlast certificates and, for food contact, the EFSA recycling-process authorisation under Regulation (EU) 2022/1616 from every recyclate supplier — and verify validity dates.
• Account recycled content per component, per unit, per plant-year. Build the technical file so each component carries its own PCR %, polymer, contact-sensitivity flag and source, then roll up to the unit and the plant-year average Article 7 requires.
• Reconcile a physical material balance for blended and segregated claims. Keep dosing records, batch logs and input/output reconciliation that an auditor can tie to the claimed percentage.
• Stress-test against the Dec 31, 2026 implementing act. Flag every SKU whose Article 7 claim depends on mass-balance attribution or on imported (third-country) recyclate, and keep a fallback feedstock plan in case the act narrows the rules.
• Co-optimise with Annex II recyclability. Validate that the recyclate grade and additive package chosen for Article 7 does not push the unit below the grade-C floor banned from January 1, 2030.
• Wire it into the Declaration of Conformity.Every Article 39 DoC must trace back to recycler-level evidence; structure the data so it exports cleanly into the brand owner's DoC and the future Digital Product Passport.

How PPWR Connect Helps

Article 7 turns a procurement choice into a documentation obligation that has to survive audit, and the model you pick — segregation, controlled blending or mass balance — determines whether the claim holds. PPWR Connect lets converters record the chain-of-custody model per material, store and date-track supplier certificates, account recycled content per component and roll it up to the plant-year average, and flag every SKU exposed to the December 31, 2026 implementing act on mass-balance and third-country equivalence. The same structured data feeds the Article 39 Declaration of Conformity and exports to brand-owner procurement, so your recycled-content evidence becomes a tender asset rather than an audit liability.