A municipal organics program in your area announces that starting next year, only BPI-certified compostable foodware will be accepted in the green bin. A new state regulation requires that any “compostable” claim on food packaging be backed by BPI or equivalent certification. A customer asks specifically whether your sustainability claims are BPI-backed. A sustainability report needs documentation of certified compostable items in operations.
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In each of these scenarios, the question becomes: which of your current foodware items are BPI-compliant, which aren’t, and what’s the gap? A foodware audit against BPI standards is a manageable project for most operations — typically 1-2 days of focused work for a mid-size foodservice operation. The output is a clear inventory of compliant items, identified gaps, and an action plan for addressing them.
This is a working guide to running a BPI compliance audit on your foodware inventory.
What BPI certification is
BPI (Biodegradable Products Institute) is the dominant US certification body for compostable products. BPI certification confirms that a product meets ASTM D6400 (for compostable plastics) or ASTM D6868 (for compostable paper-based items) standards. The certification covers:
- The product breaks down into biological compounds in industrial composting conditions within the certified timeframe (typically 84-180 days)
- The product contains no PFAS chemicals (per BPI’s 2020 rule)
- The product doesn’t leave toxic residue in finished compost
- The product meets disintegration and biodegradation testing requirements
BPI certifies the complete product, not just the substrate. A bagasse plate with a coating must have both the bagasse AND the coating certified for the plate to be BPI-certified.
BPI maintains a public directory of certified products. Each certified product has a unique certification number that should appear on packaging or product documentation.
Why BPI compliance matters
The reasons to verify and document BPI compliance:
Municipal organics acceptance. Many cities with green-bin programs (San Francisco, Seattle, Portland, others) require BPI certification for accepted compostable foodware. Non-BPI items in the green bin are contamination.
State regulatory compliance. California’s PFAS-in-foodware ban (AB 1200), Washington’s similar law, and Maine’s regulations all reference BPI certification as the way to demonstrate compliance with related claims.
Marketing and brand claims. “Compostable” claims without specific certification backing can constitute false advertising under FTC guidelines. BPI certification provides documented backing.
Customer requirements. Some procurement contracts (corporate dining, university food service, government contracts) require BPI-certified compostable disposables.
Sustainability reporting. ESG reports, B Corp certification, and similar frameworks reference certified compostable percentages.
Insurance and risk management. Documented certifications reduce legal exposure around environmental claims.
For most B2B foodservice operations, BPI compliance is becoming the practical standard for “compostable” claims rather than an optional premium feature.
The audit process
A typical BPI compliance audit involves several discrete steps:
Step 1: Compile your foodware inventory
The starting point: a comprehensive list of every compostable or “compostable-claimed” disposable foodware item in current use or inventory.
Categories to include:
– Plates, bowls, platters
– Cups (hot and cold beverage)
– Containers (clamshell, hinged, deli, soup)
– Cutlery (forks, knives, spoons, sporks)
– Straws
– Lids (cup lids, container lids)
– Trays (food trays, serving trays)
– Bags (food bags, trash bags, organics bags)
– Wraps and films (parchment, foil alternatives)
– Sauce cups and small portion cups
– Napkins (if claimed compostable)
– Stirrers, picks, accessories
For each item, capture:
– Product name and description
– Vendor/manufacturer
– SKU or product code
– Current claim (compostable, biodegradable, etc.)
– Quantity in inventory
– Annual usage volume
A spreadsheet works fine for this. For larger operations, the inventory management system or distributor data exports provide the source data.
Step 2: Verify BPI certification for each item
For each item in the inventory, determine current BPI certification status:
Method 1: Check the BPI directory. The BPI public directory (bpiworld.org or related) lists all currently-certified products by manufacturer. Search by manufacturer name or product name.
Method 2: Check product packaging. BPI-certified products typically display the BPI logo on packaging or in product documentation.
Method 3: Request documentation from supplier. For each item, ask the supplier to provide:
– Current BPI certification number
– Copy of certification document
– Effective dates of certification
– Specific products covered by the certification
Method 4: Verify the certification is current. Certifications can expire or be revoked. Confirm the certification is currently active, not just historically issued.
Method 5: Confirm the specific SKU is covered. Some BPI certifications cover only specific product variants. Verify that your specific SKU is covered, not just the brand or product line generally.
A documentation file for each verified item — certificate copy plus your audit notes — provides the evidence trail.
Step 3: Identify the gaps
After verifying status for each item, sort into categories:
Category A: BPI-certified, documentation current. These items meet compliance requirements. Document and move on.
Category B: Compostable claim but not BPI-certified. These items may be compostable but lack BPI certification specifically. Two sub-cases:
– B1: Certified by an alternative body (TÜV OK Compost, ASTM D6400 self-certified, etc.). Need to evaluate whether the alternative certification meets your specific requirements.
– B2: Marketed as compostable without specific certification. The compostability claim may be weakly substantiated.
Category C: Not compostable, not claimed compostable. Conventional plastic or paper items that aren’t claimed compostable. No BPI issue, just standard non-compostable inventory.
Category D: PFAS-containing items. Items that may contain PFAS coatings, particularly older bagasse plates or specialty oil-resistant items. These have specific compliance implications in PFAS-banning states regardless of BPI status.
Category A and C are straightforward. Categories B and D require action.
Step 4: Plan the gap closure
For each Category B or D item, develop a plan:
Option 1: Replace with BPI-certified equivalent. Identify a BPI-certified product that serves the same function. Verify cost, lead time, and supplier availability. Plan transition timing.
Option 2: Request supplier to obtain certification. For a supplier with otherwise-good products lacking specific BPI certification, request that they pursue certification. Some manufacturers will if a significant customer asks.
Option 3: Drop the compostable claim. For items where the compostable claim is weakly substantiated, consider whether continuing the claim is appropriate. Dropping the claim removes the compliance question entirely.
Option 4: Specific exemption documentation. Some items have legitimate compostable claims under alternative standards (home compostable certification, EU EN 13432, etc.). Document the specific standard used and why it applies to your specific use case.
For PFAS-containing items, replacement is typically required if selling/operating in PFAS-banning jurisdictions. Identify PFAS-free certified alternatives.
Step 5: Execute the transition
For each gap item, execute the transition:
Order new product. Place sample orders, then bulk orders with appropriate lead time.
Verify new product certification. Confirm BPI certification on receipt; file documentation.
Phase out old product. Use up existing inventory of non-certified items, transition to new products. Avoid wasting current inventory if possible.
Update procurement specifications. Modify your procurement standards to require BPI certification going forward.
Update customer communications. If your compostable claims were tied to specific products, update messaging to reflect the certified inventory.
Step 6: Document and maintain
Build sustaining documentation:
- BPI certification file for each certified item (PDF copies of certificates)
- Audit timeline showing current status
- Procurement standard documents requiring BPI certification
- Periodic re-verification schedule (annually is typical)
- Vendor compliance requirements
Annual re-audits ensure that certifications haven’t expired and that procurement hasn’t accidentally introduced non-certified items.
What to expect in the audit findings
Typical audit findings across operations:
About 60-80% of items have current BPI certification. Most major compostable foodware manufacturers maintain BPI certification on their primary product lines. Audit findings often confirm what you’d expect.
5-15% of items are compostable but not BPI-certified. Specialty items, regional brands, smaller suppliers. Either need replacement or specific exemption documentation.
5-10% of items have PFAS concerns. Particularly older bagasse plates, treated paperboard cups, and specialty oil-resistant items. Replacement typically required.
5-15% of items were misclassified as compostable. Sometimes a conventional plastic item gets bundled with compostable items in inventory categorization. Audit identifies and corrects.
0-5% of items have unexpected gaps. Sourcing changes, supplier substitutions, expired certifications. Audit catches these.
The total scope of gaps for a typical operation is manageable — usually 10-30% of items need attention, addressed over 2-6 months of transition work.
Cost considerations
A few cost dimensions of BPI compliance:
Sample and replacement costs. New samples for evaluation: typically $200-1,000 total. Replacement product costs: usually within 0-20% of current product costs (BPI-certified products price similarly to non-certified alternatives in mature categories).
Time investment. Initial audit: 1-3 person-days for mid-size operation. Annual re-audit: 0.5-1 person-day.
Documentation maintenance. Ongoing: filing system, vendor communications, occasional re-verification. Probably 4-8 hours per quarter for a mature operation.
Replacement inventory transition. Cost of phasing out non-compliant inventory varies. Generally, use existing stock before transition, minimize waste.
For a mid-size foodservice operation, total cost of compliance is typically $1,000-5,000 in direct costs plus the time investment. The investment pays back through municipal program acceptance, regulatory compliance, customer requirements satisfaction, and reduced legal exposure.
Maintaining ongoing compliance
After the initial audit and gap closure, ongoing compliance requires sustained attention:
Procurement standards. Make BPI certification a documented procurement requirement. New product introductions go through verification.
Vendor relationships. Long-term suppliers should understand the certification requirement. Periodic compliance check-ins.
Annual re-verification. Schedule annual audit of certification status. Catch expired certifications before they become problems.
Regulatory monitoring. PFAS regulations and other compostable foodware standards continue to evolve. Stay current with applicable jurisdictions.
Customer-facing communications. Update marketing materials to reflect certified inventory. Avoid generic “compostable” claims without certification backing.
Common challenges
A few situations that complicate compliance audits:
Multi-component products. A coffee cup with paper substrate and PLA lining is one product; the components might be separately certified or jointly certified. Document the specific certification covering the assembled product.
Multi-sourced products. A single SKU sourced from multiple manufacturers depending on availability. Each source needs separate verification.
Custom-branded products. Private label products require specific verification — the underlying product might be BPI-certified but the custom version might not be (custom additives, custom inks, etc.).
Products in transition. Manufacturers updating to BPI certification or updating formulations. Verify the version you’re receiving matches the certified version.
International product sourcing. Some imported products carry EU EN 13432 certification but not US BPI certification. EU certification doesn’t automatically transfer; verify the US-specific certification.
Seasonal product variations. Some products have seasonal variants (holiday-themed, special editions). Each variant requires separate verification if compostability claim applies.
A patient, systematic approach handles all these complications. The audit takes longer for complex inventories, but the principles are the same.
Building in certification at procurement
The most efficient long-term approach is making BPI certification a default procurement requirement:
- Vendor qualification. New vendors must demonstrate BPI certification on relevant products.
- Purchase specifications. All compostable foodware purchase orders specify BPI-certified products.
- Receiving inspection. Goods receipt verifies BPI certification status.
- Vendor performance metrics. Compliance tracked as a vendor performance metric.
This prevents non-compliant items from entering inventory in the first place, which is much easier than removing them after the fact.
A reference list of BPI-certified product categories
Major compostable foodware categories with widespread BPI certification:
- Bagasse plates, bowls, trays, containers
- PLA-coated paper cups and lids
- PLA cold cups and lids
- PLA cutlery
- Paper straws (BPI-certified versions)
- PLA straws
- Compostable trash bags
- Compostable food bags
- Paper take-out containers (BPI-certified versions)
- Wood and bamboo utensils
- Compostable napkins (BPI-certified versions)
For broader compostable foodware categories — compostable food containers, tableware, bags — BPI certification is the standard claim to verify.
The take
For foodservice operations using compostable disposables, BPI compliance auditing is a reasonable annual exercise. The initial audit is the most labor-intensive; subsequent audits are streamlined as documentation infrastructure builds out.
The benefit isn’t theoretical. Municipal program acceptance, regulatory compliance, customer requirements satisfaction, and credible sustainability claims all depend on documented certification. The cost is modest; the upside is meaningful.
For operations that haven’t conducted a compostable foodware audit, scheduling one this quarter is a reasonable priority. The audit reveals what you have, what you need, and what action plan addresses the gaps. From there, ongoing compliance is straightforward — verify at procurement, re-audit annually, maintain documentation.
The compostable foodware category is maturing. The era of “compostable” being a loosely-substantiated marketing claim is ending; the era of certified-and-documented compostable supply chains is the working reality. Audit your inventory, close the gaps, build the procurement infrastructure, and your compostable claims will hold up to scrutiny in any of the contexts where it matters.
For B2B sourcing, see our compostable supplies catalog or compostable bags catalog.
Verifying claims at the SKU level: ask suppliers for a current Biodegradable Products Institute (BPI) certificate or an OK Compost mark from TÜV Austria, and check that retail-facing copy meets the FTC Green Guides qualifier requirement on environmental claims.