Compostable Packaging & EPR: A Looming Reclassification Risk
May 24, 2026 · 9 min read
California's SB 54 defines “compostable” packaging using ASTM standards. If your packaging meets ASTM D6400 or D6868, it qualifies for the compostable category under EPR — and compostable materials carry lower fees than non-recyclable plastic.
But a separate federal rule could reclassify that same packaging as non-recyclable overnight. The USDA National Organic Program (NOP) hasn't approved most bioplastics as compost feedstock. If composters stop accepting your material to protect their organic certification, your “compostable” packaging has nowhere to go — and your EPR fees could increase by 10x or more.
What does “compostable” actually mean under EPR?
Under SB 54, packaging is “compostable” if it meets ASTM D6400 (compostable plastics) or D6868 (compostable coatings on compostable substrates). These standards test biodegradation under controlled composting conditions — temperature, moisture, time. Pass the test, get the label.
EPR law doesn't ask whether composters actually accept the material in practice. It asks whether the material passes a lab test. This gap between lab certification and real-world acceptance is where the problem lives.
The USDA NOP problem
The USDA's National Organic Program regulates what can go into compost used on certified organic farms. Under 7 CFR §205.203(c), compost can only contain plant and animal materials — plus a narrow list of approved synthetics.
Most bioplastics, including PLA derived from genetically modified corn, are classified as “synthetic” under NOP rules. They are not on the approved list. In May 2025, the USDA amended the biodegradable mulch rule (dropping the field removal requirement) but left the broader bioplastic packaging question unresolved.
The National Organic Standards Board (NOSB) is now reviewing whether certified compostable bioplastics should be allowed in compost for organic production. A formal determination is expected around 2027.
How this affects your EPR fees
If the NOP restricts bioplastics in organic compost (the likely outcome), two things happen simultaneously:
- Composters refuse the material.Composters serving organic farms — a large and growing segment — will stop accepting bioplastic feedstock to protect their certification. Without composters, “compostable” packaging has no viable end-of-life pathway.
- EPR reclassification risk.SB 343 (California's truth-in-labeling law) prohibits labeling packaging “compostable” unless at least 60% of communities with composting access can actually process it. If composters reject bioplastics, that threshold can't be met — and the label becomes legally invalid.
The fee delta is significant. A package classified as compostable under EPR pays low-tier rates. The same package, reclassified as non-recyclable, pays the highest rates:
| Classification | EPR Rate (CA, per lb) | Annual Fees (100K lbs) |
|---|---|---|
| Compostable (current) | Low tier | ~$2,000–$5,000 |
| Non-recyclable (reclassified) | High tier | ~$40,000–$98,000 |
Rates based on CAA illustrative fee schedules (May 2026). Compostable rates vary by material type; non-recyclable rates reflect the highest tier. Actual fees depend on final program plan submission.
SB 343 and labeling risk
California's SB 343 creates a second exposure. Under this law, it's illegal to label packaging as “compostable” unless at least 60% of communities with composting programs can actually process the material.
If organic-certified composters stop accepting bioplastics — a likely outcome if NOP restricts them — the percentage of communities that can process your “compostable” packaging drops below 60%. The label becomes legally invalid. You can't call it compostable, and you can't claim the compostable fee tier either. Two compliance violations from one regulatory collision.
Industry positions
BPI & Compostable Products Institute
Advocating for certified compostables to be allowed as compost feedstock. Their argument: ASTM-certified materials biodegrade, the science supports inclusion, and excluding them undermines circular economy goals.
Organic farming groups
Opposing inclusion. Their concerns: microplastic residue in finished compost, GMO-derived feedstocks (PLA from corn), and the risk of contaminating organic certification that took decades to build.
Composters (the middle ground)
Many are declining bioplastic feedstock now to protect their organic certification. The rational business decision is to wait for regulatory clarity — which means your compostable packaging has limited acceptance today, regardless of what ASTM certification says.
What brands should do now
- Dual-track your packaging strategy.Don't abandon compostable packaging — but ensure every compostable SKU has a recyclable backup that works regardless of the NOP outcome.
- Model both classification scenarios. Use the calculator to run your portfolio twice: once where compostable stays compostable, once where it reclassifies as non-recyclable. The difference is your risk exposure.
- Check your SB 343 compliance.If your packaging is labeled “compostable,” verify that more than 60% of communities with composting programs in your sales territory can actually accept the material. If they can't, you have a labeling liability — not just a fee liability.
- Monitor the NOSB process. The formal determination is expected around 2027, but the NOSB meets twice a year and accepts public comment. Engage through your trade association if this affects your portfolio.
- Prioritize source reduction. The safest EPR position — regardless of how NOP rules land — is less packaging overall. Source reduction credits don't depend on category classification.
The NOP ruling won't change your packaging. It will change how your packaging is classified. The brands that model both scenarios now will know their exposure before the rule is written. The ones that don't will discover it on their first invoice.
Model your reclassification risk
See what your fees would be if your compostable packaging gets reclassified. Run both scenarios side by side.