BPI Certification Explained: What 'Compostable' Actually Means in Foodservice

“Compostable” is one of the most abused claims in foodservice packaging. Without a certification standard, the word means almost nothing — many products labeled compostable take years to break down in real conditions, or contain plastic films that prevent composting entirely.

BPI certification cuts through this. It’s the US industry-standard verification for industrial compostability and the only signal procurement teams should accept for compostable-mandate programs. This guide explains what BPI actually verifies, what it doesn’t, and how to read the certification label on a product.

For the broader compostable category overview see Compostable Foodservice Packaging. For the material decision matrix see PLA vs CPLA vs Bagasse vs PHA.

What BPI is

BPI (Biodegradable Products Institute) is the US nonprofit that operates the compostable certification program for North America. Founded in 1999, BPI maintains the verification standards, audits manufacturer claims, and licenses the BPI logo for use on certified products.

BPI certification is voluntary — manufacturers pay for testing and licensing — but it’s the closest thing the US has to a regulatory standard for compostable packaging. Multiple state laws (California, Washington, etc.) reference BPI certification as the qualifying standard for “compostable” claims.

What BPI verifies (ASTM D6400 / D6868)

BPI uses two ASTM standards depending on material:

ASTM D6400 — for plastics, including PLA, CPLA, PHA, and blends. Requires:

1. Disintegration within 84 days at 58°C / 136°F: the product must fragment to under 2mm pieces
2. Biodegradation ≥90% within 180 days: 90% or more of the organic carbon must convert to CO₂ via microbial activity
3. Ecotoxicity: heavy metals (lead, cadmium, mercury, etc.) must be below specified thresholds
4. Plant growth test: the resulting compost must support plant growth, demonstrating no toxic residue

ASTM D6868 — for paper or fiber coated with plastic (think PLA-coated cups, PFAS-free coated bagasse plates). Same requirements as D6400 but applies to the composite material.

A product passing either standard earns BPI certification and the right to use the BPI logo.

What BPI does NOT verify

BPI certification has specific limits people commonly assume it covers:

• Home composting — BPI requires 136°F sustained temperatures. Backyard piles don’t reach these consistently. BPI-certified products may break down in backyard compost but slowly and unreliably.
• Marine / freshwater biodegradation — BPI testing is in controlled industrial-compost conditions. A BPI-certified plastic in ocean water won’t biodegrade meaningfully (different testing standard: ASTM D7081 for marine).
• Landfill biodegradation — Sealed anaerobic landfills don’t have the oxygen or moisture conditions needed for industrial composting. BPI-certified products in landfills may break down slowly anaerobically (emitting methane), which is worse than recycling.
• Composting if your municipality doesn’t accept it — BPI verifies the product, not the disposal infrastructure. If your local compost facility doesn’t accept compostable foodservice items, the certification doesn’t help you. See composting infrastructure by state.

The PFAS update (2020 onward)

In 2020, BPI updated its standards to prohibit intentionally-added PFAS in any certified product. Before that, some compostable products (especially bagasse plates and clamshells) used PFAS coatings for grease resistance. After 2020, BPI-certified products must use PFAS-free alternatives.

This makes BPI certification effectively double-duty: a current BPI-certified product is also PFAS-compliant for the increasing number of states banning intentionally-added PFAS in foodservice packaging.

Procurement implication: for PFAS-regulated markets, looking for the BPI logo on the product is a sufficient verification mechanism. You don’t need a separate PFAS certification — the current BPI standard incorporates it.

See PFAS Bans on Foodservice Packaging for state-by-state PFAS regulation timing.

Reading the BPI label

A properly BPI-certified product carries:

1. The BPI logo — a green circular badge with “BPI Compostable” text
2. A product code or manufacturer ID — often a number under the logo (BPI maintains a searchable database at bpiworld.org)
3. The certification expiration / renewal date — certifications are renewable annually

Look for the logo on the product itself, not just the case label or marketing materials. The logo on the product proves the specific SKU was tested; logo only on marketing materials may mean the brand has SOME products certified but not this one.

What about TÜV OK Compost?

TÜV (Belgian certification body) operates the parallel European/global compostable certification framework. Three relevant tiers:

• TÜV OK Compost INDUSTRIAL — equivalent to BPI / ASTM D6400 (industrial composting)
• TÜV OK Compost HOME — more stringent: breaks down in lower-temperature backyard piles (typically 30°C / 86°F)
• TÜV OK Biodegradable SOIL / WATER / MARINE — for non-compost environments

Products carrying TÜV OK Compost HOME meet a stricter standard than BPI. For home-compost programs (some PHA products), TÜV HOME is the certification to look for.

How procurement should use BPI

Three procurement scenarios:

Scenario 1: Compostable-mandate market (CA, WA, NJ, NY, ME, etc.)

The mandate is met by purchasing only BPI-certified (or TÜV OK Compost INDUSTRIAL) products. Verify the logo on every SKU. Reject any product claiming “compostable” without certification — the regulatory exposure isn’t worth the cost savings.

Scenario 2: Eco-positioned brand in non-mandate market

BPI certification is a credible eco-claim. Brand can market “BPI-certified compostable” honestly. Caveat: the brand should also help customers understand that the products require industrial composting — putting them in regular trash defeats the purpose.

Scenario 3: PFAS-only concern (not compostability)

If only PFAS compliance is the issue (not full composting), BPI certification still verifies PFAS-free status (post-2020). But for non-compostable PFAS-free needs, look for direct PFAS-free certification labels or supplier attestations — many conventional plastic and aluminum products are PFAS-free without needing BPI.

Common false claims to watch for

• “Biodegradable” without a timeframe or certification = meaningless. Reject for compostable-mandate programs.
• “Made from plants” without a compost certification = the material may be bio-based but not actually compostable in any practical timeframe.
• “Eco-friendly” = marketing word, no standard. Always look for certification.
• “OK to compost” without a logo = unverified. The certified version of this claim carries a logo.
• “Bagasse” alone = the material is naturally compostable but the coating may not be. Verify the full product is BPI-certified.

Decision cheat sheet