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How is compostable and hard-to-recycle packaging handled?

Packaging EPR systems are built around a recycling pipeline — collect, sort, sell — and two categories of material fit it badly: packaging marketed as compostable, which belongs in an organics stream that mostly does not want it, and packaging that is technically or economically unrecyclable, which enters the bin and exits as residue. Both categories force schemes to answer a question they would rather avoid: what happens, and who pays, when covered material has no good end market? This article reviews the certification and labeling regimes now governing compostability claims; the striking divergence between jurisdictions that obligate compostables and infrastructure that rejects them; the mechanisms — statewide collection lists, recyclability gates, grade thresholds and fee penalties — by which programs handle hard-to-recycle material; and the escalation, visible on both sides of the Atlantic, from pricing bad packaging toward banning it.


1. Compostables: the certification layer

The first regulatory task was disciplining the claim itself, because "compostable" and "biodegradable" were, for years, effectively unregulated marketing language.

California has built the most developed claims regime. Under AB 1201, as administered by CalRecycle, a product sold as "compostable" must meet the ASTM standards for compostable plastics (D6400) or compostable plastic-coated fibre (D6868); "home compostable" claims require the OK compost HOME certification; total organic fluorine — the PFAS screen — must be below 100 parts per million; and from June 2027, compostable products must also satisfy the USDA National Organic Program's input requirements, tying packaging compostability to what organic farms may legally receive. Ontario takes the same approach inside its EPR system: certified compostable products form their own Blue Box material category, qualifying only if certified to a listed standard (CAN/BNQ 0017-088, ISO 17088, ASTM D6400, ASTM D6868 or EN 13432), with certification claims within the scope of the producer audit procedure.

The European Union went further: rather than merely policing claims, the Packaging and Packaging Waste Regulation (Regulation (EU) 2025/40, Article 9) mandates compostability for specific formats — permeable tea and coffee bags, sticky fruit-and-vegetable labels, and very lightweight plastic carrier bags must be industrially compostable by February 2028. A second limb (Article 9(2)) gives member states an option: where bio-waste collection and treatment infrastructure exists, they may require compostability for further formats — non-permeable single-serve units, lightweight carrier bags — and may maintain national compostability mandates that predate the regulation, with compostability benchmarked to the harmonised European standard (EN 13432). The logic of the mandated list is precise: these are formats that inevitably contaminate the organics stream (the tea bag goes in with the tea leaves; the sticker stays on the peel), so making the format compostable solves a contamination problem rather than creating one. The member-state option, by contrast, is where the compostables industry's larger ambitions live — and its conditioning on existing infrastructure is the drafters' acknowledgment of exactly the acceptance problem the next section documents.

2. Compostables: the infrastructure that says no

The certification layer assumes a destination. The documented reality is that much of the organics infrastructure does not want certified compostable packaging.

The bluntest official position comes from Éco Entreprises Québec, the designated body for Quebec's curbside system: compostable packaging is not recyclable in the curbside system; "Quebec's composting infrastructure is designed to process organic materials and not to manage compostable packaging"; compostable plastic adds no nutrient value to compost and "is removed and sent to landfill." ÉEQ backed the position with money, introducing fee penalties in its 2024 contribution schedule for PLA and other degradable plastics — an EPR scheme charging a malus on the very material category that other regimes certify and mandate.

The US survey evidence quantifies the ambivalence. A 2023 nationwide survey of full-scale food-waste composters (conducted through the BioCycle/Composting Consortium network, reported at one remove) found 71% accept some form of compostable packaging — up from 58% in 2018 — but acceptance skews heavily to fibre: around 83% take food-soiled paper, under half take moulded fibre, and only about 31% take bioplastic-coated paper; a large minority of facilities run zero-tolerance contamination policies. Follow-up reporting found acceptance still rising, while conventional plastics remained "the leading source of contamination and cost, accounting for 21% of operating expenses" at responding facilities.

Ontario's design quietly concedes the problem. Certified compostable packaging is obligated — producers register, report and pay on it — but the category is the only one of the program's seven material categories with no recovery target attached: paper carries 80–85% targets, rigid plastics 50–60%, metals 67–75%, and certified compostables none. Producers pay; nothing requires the material to actually be composted or otherwise recovered. The honest description of the current North American settlement: compostable packaging is charged as if it were part of a recovery system that, for the most part, declines to recover it.

The synthesis for a designer is uncomfortable but clear. Compostability is a genuine solution for the narrow class of formats that contaminate organics by function — the EU's mandated list — and, at present, a certification-wrapped disposal pathway for most other formats, whose fate depends on local composter acceptance that certification does not secure. Programs that price this honestly (Quebec's malus) and programs that mandate the format (the EU) are at least internally coherent; programs that obligate the material while attaching no recovery expectation are collecting fees on a promise nobody is required to keep.

3. Hard-to-recycle packaging: four mechanisms

For material that fits the recycling pipeline badly, four distinct regulatory mechanisms now operate, in ascending order of severity.

The collection list (Oregon). Oregon's statute creates a uniform statewide collection list, established by the Environmental Quality Commission with statutory criteria — the "stability, maturity, accessibility and viability of responsible end markets" first among them, alongside contamination risk, sorting practicality, yield loss, generator ease of identification and life-cycle considerations. Materials not on the list may not be collected commingled (limited trials excepted); producer organisations may propose additions through their program plans. The list mechanism separates two questions programs usually blur: what producers pay for (all covered products) and what gets collected (listed materials only). An unrecyclable format still pays fees — proportional, under Oregon's fee rules, to its costs by material and format, with the statute directing a graduated structure that avoids "one material subsidizing another" — but cannot free-ride into the bin to be landfilled at sorting-facility expense. Oregon's ecomodulation guidance adds a caution the recyclability debate usually skips: fees should be informed by life-cycle evaluation, not recyclability alone, because "some recyclable items may be more impactful than non-recyclable alternatives" — a reminder that recyclability is a waste-system property, not an environmental verdict.

The recyclability gate on claims (California SB 343). California's "chasing arrows" law makes recyclable-labeling claims lawful only for materials "regularly collected and processed" in the state, determined against CalRecycle's periodic material characterisation study of what actually moves through sorting facilities — final findings published April 2025, with restrictions applying to products manufactured from October 2026. The gate does not remove material from the program; it removes the claim, and with it the marketing value of pseudo-recyclability.

The performance ratchet (California SB 54). The sharper Californian mechanism is prospective: all covered material must be recyclable or (per AB 1201) compostable by 2032, and plastic covered material must achieve actual recycling rates of 30% by 2028, 40% by 2030 and 65% by 2032. A plastic format that cannot demonstrate its rate pathway loses the right to be sold as covered material — an existence test administered through the program, not merely a fee adjustment.

The grade threshold (EU PPWR). The EU's version generalises the ratchet to all packaging: recyclability performance grades — A (≥95% recyclable by weight against design-for-recycling criteria), B (≥80%), C (≥70%) — with packaging below grade C banned from the market from 2030, an at-scale recycling test layering on from 2035, and the minimum rising to grade B from 2038. Fee modulation is instructed to track the grades. This is the design endpoint of the escalation: recyclability ceases to be a fee parameter and becomes a market-access condition.

4. Pricing the residual: fees as the halfway house

Between collection lists and bans sits the fee treatment of hard-to-recycle material, and the United Kingdom currently runs the most explicit version.

From its second year (2026–27), UK packaging fees are modulated by the Recyclability Assessment Methodology (RAM): household packaging is assessed component by component through sequential gates — is it collected (by at least 75% of UK local authorities, or 50% for "limited" status), sortable (detectable and separable in practice), reprocessable (without disrupting the stream), and does the output substitute virgin material? Failure at a gate drives a red rating. The published illustrative Year 2 fees make the arithmetic concrete across every material:

Material Green (£/t) Amber (£/t) Red (£/t)
Aluminium 245 270 325
Fibre-based composite 475 525 630
Glass 185 205 245
Paper and board 190 210 250
Plastic 415 455 545
Steel 260 290 345
Wood 410 450 540

Red-rated material pays 1.2 times the amber fee; green earns roughly a 9% discount, sized to keep scheme revenue neutral. The structure is a recyclability gate expressed as a price rather than a prohibition — and the spread between green and red plastic, £130 per tonne, is the concrete answer to what the UK currently believes non-recyclability should cost.

Whether prices of this size change design is exactly the question examined in Theme 1 (the two-goal problem) and returned to in Theme 5: a 20% surcharge on a fee that is itself a small fraction of product price is a strengthened signal, not obviously a binding one — which is why the EU, having run fee modulation for years, legislated the 2030 grade ban as its backstop. The revealed preference of the most experienced jurisdictions is that pricing alone was not trusted to remove the worst formats.

Flexible films: the test case. Flexible and multi-material packaging is where every mechanism is visibly strained, because the material is collected far more readily than it is recycled. Recycle BC's "Other Flexible Packaging" category — crinkly wrappers, stand-up pouches, multi-laminates — is accepted at depots only, explicitly excluded from kerbside, and originated as a research-and-development project whose non-recyclable fraction is "recovered and produced into engineered fuel to replace coal": collection without recycling, candidly labelled. Ontario's 2025 amendments made the same concession in target form, phasing flexible-plastic recovery targets from just 10% in 2026–27 to 25% by 2032 — an official acknowledgment that the great majority of collected film will not be recycled for years. Set against the EU's 2030 grade-C threshold, flexibles are the category most likely to force the question the ratchets were built to pose: redesign, or exit.

5. Where the argument stands

Across both categories, the direction of travel is the same and worth stating as the finding. Packaging EPR began by charging everything in the bin more or less alike; it is converging on differentiated treatment anchored to demonstrated end-of-life performance — certification for compostability claims, characterisation studies for recyclability claims, statutory lists for collection, modulated fees for the middle, and market bans at the bottom. The escalation from price to prohibition (California's 2032 tests, the EU's 2030/2038 grades) is the system's own verdict on the sufficiency of fee signals.

The unresolved problems are two. Compostables sit in a coherence gap: certified, mandated for some formats, penalised elsewhere, and unwanted by much of the infrastructure that is their nominal destination — the only major covered category whose fate after collection no North American program guarantees. And the residual's costs remain socialised within the fee base: until fee schedules charge unrecyclable formats their full residual-management cost (as Oregon's proportionality rules gesture toward and the UK's red rating approximates), the difference between a recyclable and an unrecyclable package remains, for its producer, a modest price differential on the way to a 2030 deadline that will settle the question differently.


References

  • CalRecycle, compostable-products labeling requirements under AB 1201: ASTM D6400/D6868, OK compost HOME, the 100 ppm total organic fluorine limit, and the June 2027 organic-input date (calrecycle.ca.gov, accessed August 2026).
  • California PRC §42050(b)–(c) (SB 54): the recyclable-or-compostable requirement by 2032 and the 30/40/65% plastic recycling-rate ratchet; CalRecycle SB 343 material-characterisation process, final findings April 2025, restrictions from October 2026.
  • RPRA (Ontario), compliance bulletin on Blue Box material categories: the certified-compostable category, accepted certification standards, and the absence of a recovery target for the category (April 2025); ERO 025-0009 decision — flexible-plastic target phasing 10%→25%.
  • Regulation (EU) 2025/40 (PPWR): Article 9 compostability mandates (February 2028) and member-state options; Article 6 and Annex II recyclability grades A/B/C, the 2030 grade-C market threshold, the 2035 at-scale test and the 2038 grade-B minimum (Official Journal text). One secondary-source conflict on whether very lightweight carrier bags are mandatory or member-state optional was resolved in favour of the Official Journal text; noted for re-verification.
  • Éco Entreprises Québec, ecodesign and recyclability FAQ: the composting-infrastructure position and the 2024 malus on PLA and degradable plastics (eeq.ca, accessed August 2026).
  • BioCycle / Composting Consortium survey of US food-waste composters (2023, with follow-up reporting): the 71% acceptance figure, fibre-skewed acceptance rates, and the 21%-of-operating-costs contamination finding (reported via BioCycle and trade press; survey self-reports, identified as such).
  • ORS 459A.914 (Oregon): the uniform statewide collection list, its criteria, and the commingled-collection restriction; ORS 459A.884 and Oregon DEQ ecomodulation guidance — cost-proportional fees and the caution against recyclability-only fee logic.
  • PackUK / GOV.UK, Year 2 illustrative waste disposal fees: the red/amber/green structure, the 1.2× red multiplier, and the per-tonne figures quoted; the Recyclability Assessment Methodology's sequential gates (official publication, with mechanics as summarised in reputable practitioner explainers).
  • Recycle BC, accepted-materials documentation and regional-district program notices: the depot-only "Other Flexible Packaging" category, its research-and-development origin, and the engineered-fuel pathway.

Verification note: this article rests on the August 2026 research pass logged in Sources and method; survey figures and secondary-sourced items are identified as such in-line, and the single primary-source conflict encountered (PPWR Article 9's carrier-bag clause) is disclosed with the resolution adopted.