How We Navigate Compostable Certifications Across 40+ Countries — Lessons from the Factory Floor

If you buy compostable packaging from overseas suppliers, you've probably seen certificate logos splashed across websites and brochures. But here's what most supplier pages won't tell you: holding a certificate and shipping compliant products to your specific market are two very different things.

At Halmfeld, we've been manufacturing compostable bags and resins since 2013 and exporting to more than 40 countries. Over that time, we've dealt with customs questions in California, compliance audits from German retailers, and certification queries from Australian government procurement officers. Each market has its own expectations — and each has caught us off guard at least once. Here's what we've learned.

The Certification Landscape Is Fragmented — And That Creates Real Risk for Buyers

There is no single "global compostable" standard. The three main frameworks — EN 13432 in Europe, ASTM D6400/BPI in North America, and AS 4736/AS 5810 in Australia — were developed independently by different organizations with different testing protocols. A product that passes one may not pass another, even if the base material is identical.

For buyers, this means a critical question: which certification does your end market actually require?

We've seen buyers order "compostable" bags with EN 13432 certification, only to discover upon arrival in the U.S. that their retail partner requires the BPI mark. Or Australian municipal programs rejecting shipments because the supplier only held industrial composting certification, when the local council mandated home compostable (AS 5810) status.

These aren't hypothetical scenarios — they're problems we've helped clients fix after the fact.

What Each Market Actually Cares About (From Our Shipping Experience)

North America (USA & Canada): The BPI mark is the gatekeeper. Many large retailers — grocery chains, e-commerce platforms, institutional buyers — won't even consider a compostable product without it. ASTM D6400 testing is the foundation, but the BPI logo is what procurement departments look for. Several U.S. states (California, Washington, Minnesota) have also written ASTM D6400 into law as the legal definition of "compostable," meaning non-compliant products face regulatory risk beyond just buyer rejection.

Europe (EU/UK): EN 13432 is the baseline, but the market is more nuanced than a single standard. Germany's DIN CERTCO "Seedling" logo and TÜV Austria's "OK Compost" marks are both widely recognized, but different retailers and municipal programs may prefer one over the other. The UK, post-Brexit, generally follows EN 13432 but has its own regulatory trajectory worth monitoring. One detail that catches buyers off guard: EN 13432 certifies for industrial composting (55–60°C). If your end consumers compost at home, you need the separate OK Compost HOME certification, which tests at much lower temperatures.

Australia: This market is the most specific about distinguishing industrial from home composting. AS 4736 covers industrial facilities; AS 5810 covers home composting. Many local councils run FOGO (Food Organics and Green Organics) collection programs, and they're increasingly specific about which certification they accept. We've shipped garbage bags to Australian municipal programs that required AS 5810 documentation for every batch — not just a general product certificate, but batch-specific verification.

South America & Emerging Markets: These markets are less standardized. Chile, Brazil, and Mexico each have evolving packaging regulations, and the enforcement landscape changes frequently. We advise clients targeting these markets to confirm current requirements before placing orders, as certifications that worked last year may not suffice today.

The Gap Between "Testing Pass" and "Shipment Compliance"

Here's something that rarely appears on supplier websites: passing certification testing is necessary but not sufficient for compliant shipping.

Consider what happens between our factory floor and your warehouse:

• Customs authorities may request certificate documentation in a specific format or language. We've prepared Portuguese-language certificate summaries for Brazilian customs and Spanish-language declarations for Chilean imports — requirements that don't appear in any certification body's guidelines.

• Retailer compliance teams often have their own checklist beyond the certification itself. A major U.S. grocery chain once required us to provide not just our BPI certificate, but a signed declaration that the specific SKU matched the certified product configuration — including thickness, color, and print specifications.

• Batch traceability matters more than buyers think. We maintain batch-level QC records linking every production run to its raw material source, test report, and certification reference. When a buyer's auditor shows up unannounced, being able to pull the documentation for "Order #2026-0847, shipped March 15th" within hours — not weeks — makes the difference between a smooth audit and a shipment hold.

Our Approach: Certification as a Supply Chain Discipline, Not a Marketing Checkbox

We don't view certifications as something to display on a website and forget about. At Halmfeld, maintaining compliance across multiple markets is an ongoing operational process:

• Pre-production consultation: Before we run any custom order, we confirm which certifications the destination market requires and whether the buyer's specific product configuration (size, thickness, material blend, print) falls within our current certification scope. If not, we address that gap before production begins — not after.

• Certificate portfolio maintenance: We actively maintain EN 13432, ASTM D6400/BPI, AS 4736, AS 5810, and OK Compost HOME certifications, with renewal cycles tracked and audited. Certificates don't last forever; keeping them current requires scheduled re-testing and factory audits.

• Per-shipment documentation: Every order ships with a compliance package — current certificates, test reports, material declarations, and batch records. This isn't an optional add-on; it's standard procedure.

• Regulatory monitoring: Packaging regulations change. We track developments in each market we serve and proactively alert clients when upcoming regulatory shifts might affect their orders or compliance status.

What Buyers Should Ask Before Placing an Order

Based on a decade of solving certification problems — sometimes preventable, sometimes not — here are the questions we recommend asking any compostable packaging supplier:

1. "Does your certification cover this specific product configuration?" Not just the material — the exact thickness, size, and print specification you're ordering. Some certifications are product-line level; others are SKU-specific.

2. "Can you provide batch-level documentation with each shipment?" If the supplier can only offer a general certificate without batch traceability, you may face problems during audits or customs inspections.

3. "What happens if regulations change after I place my order?" A responsible supplier should be monitoring regulatory developments and flagging risks before they become your problem.

4. "Do you have experience shipping to my specific market?" Generic "we export worldwide" claims don't guarantee familiarity with your country's specific compliance requirements, documentation formats, or customs procedures.

The compostable packaging market is growing fast, and with that growth comes an expanding range of suppliers — not all of whom treat certification with the seriousness it demands. Certifications aren't marketing accessories. They're the difference between a product that clears customs and reaches your customers, and one that sits in a container at the port.

At Halmfeld, we treat every certification as a living compliance commitment — not a framed certificate on the wall. That approach has kept our shipments moving smoothly across 40+ countries for over a decade, and it's the standard we hold ourselves to on every order.