To get a compostable packaging certification, you match your finished pack to a published standard, have an accredited laboratory run biodegradation, disintegration and ecotoxicity tests on the complete pack, then apply to a certification body for a certificate and a license to print its mark. Budget nine to twelve months from first sample to issued certificate, and expect to retest whenever the formulation changes.
Most delays come from one early mistake: certifying a resin grade instead of the pack that actually ships. A resin can pass every test while a finished bag with a barrier coating, a soy ink and a matte varnish fails on ecotoxicity. That single distinction drives the whole process below.
It also drives the legal risk. The FTC Green Guides in the US, the CMA in the UK and state labelling laws such as California’s restriction on PFAS in food packaging all treat a bare “compostable” claim as a factual representation. A certificate with a number you can look up is the difference between a defensible claim and a letter from a regulator.
Table of Contents
- What You Need Before You Apply
- Step-by-Step: How to Get Compostable Packaging Certification
- 1. Define the Packaging and Intended Use
- 2. Choose the Certification Standard and Market
- 3. Separate Certification From Compostability Claims
- 4. Request a Proposal and Confirm Scope
- 5. Complete Laboratory and Verification Testing
- 6. Resolve Nonconformities and Implement Quality Control
- 7. Obtain the Certificate and License the Mark
- 8. Maintain Compliance and Control Renewal
- Common Mistakes That Fail Applications
- Frequently Asked Questions
- How long does it take to certify compostable packaging?
- What does compostable packaging certification cost?
- Is there one certificate that works for compostable packaging worldwide?
- Can a certificate for a compostable resin certify the finished package?
- Can certified compostable packaging go in a home compost bin?
- Do inks, coatings, labels, and adhesives need separate certification?
- Conclusion: Start With the Bin, Not the Resin
What You Need Before You Apply
Verifiers spend most of their early time chasing documents, not samples. Assembling the following shortens the quote stage and stops a scope that later changes halfway through testing.
- Finished-pack specification. Format, dimensions, basis weight or thickness, and whether the pack is film, rigid, coated paper, molded fiber or a laminate.
- Complete bill of materials. Every polymer, blend ratio, filler, pigment, masterbatch, barrier layer, liner, foil or metallized film.
- Inks, coatings and adhesives. Water-based or solvent-based, the adhesive chemistry, and any grease or water resistance applied.
- Labels, closures and decorations. Printing, adhesives, tamper seals, stickers and any closure component.
- Intended compostability conditions. Industrial, home, or both, and the specific facility conditions the claim must survive.
- Expected shelf life and contents. Food contact, produce, or non-food, plus how long the pack sits before disposal.
- Certification target market. United States, European Union, Australia, or a combination, since the certificate has to match the sale territory.
- Technical drawings and photographs of the pack in its final printed state.
- Supplier declarations and data sheets for the resin, masterbatch and coating suppliers.
- Internal test records, if you have run screening tests, so the verifier does not repeat work.
One practical note on proprietary additives. Resin suppliers often hold back the exact additive package because it is commercially sensitive, and that disclosure gap is a recognized cause of stalled applications. Ask early whether your supplier will sign a non-disclosure agreement, because a verifier that cannot see the full formulation may decline to certify the pack.
Standards and marks at a glance
This reference table maps each standard to the composting route it proves and the body that issues the mark you would license for artwork.
| Standard | Region | Composting route | Certification body | Mark |
|---|---|---|---|---|
| ASTM D6400 | United States | Industrial | Biodegradable Products Institute (BPI) | BPI Certified |
| ASTM D6868 | United States | Industrial, coatings and films | Biodegradable Products Institute (BPI) | BPI Certified |
| EN 13432 | European Union | Industrial | TUV Austria, Din Certco | OK Compost INDUSTRIAL, seedling with TIDD |
| OK Compost HOME | Europe and others | Home and garden | TUV Austria | OK Compost HOME |
| AS 4736 | Australia | Industrial | Australian Bioplastics | AS 4736 |
| AS 5810 | Australia | Home | Australian Bioplastics | AS 5810 |
Test methods referenced alongside these standards include ISO 14855 and EN 14046 for biodegradation under controlled composting. If a supplier quotes you a certificate, read the standard number and revision rather than the product name.
Step-by-Step: How to Get Compostable Packaging Certification
1. Define the Packaging and Intended Use
Write a one-page description of the pack exactly as it will ship. Cover format, dimensions, weight, polymer construction, inks, adhesives, coatings, liners, labels, closures and the goods inside it. Then state the use: food contact, produce, takeaway serviceware, or something else.
Why the use matters: a pack holding hot, acidic or fatty food is exposed differently than an empty mailer, and some programs set additional food-contact or dimension limits. When a verifier can tell from the documentation which conditions apply, the scope is settled. Anything ambiguous here becomes a scope dispute in month four.
2. Choose the Certification Standard and Market
Pick the standard by disposal reality, not by ambition. Industrial standards such as BPI under ASTM D6400 or D6868, and EN 13432 in Europe, require a commercial facility that controls temperature and moisture. Home standards such as OK Compost HOME and AS 5810 require the pack to break down in a backyard or dome bin at ambient temperature.
Match that choice to where the pack is sold. A US-only foodservice program rarely needs an EU certificate; an EU retailer generally does. Deciding early keeps you from paying twice, and dual certification is only worth it when you know both markets exist in your sales plan.
3. Separate Certification From Compostability Claims
A compostable resin certificate is not a certificate for your package. This is the most common misunderstanding in the field, and it is the one that gets caught later by regulators or by a rejected audit.
Your evidence file needs the complete formulation disclosure, test results for every material and component, degradation results, ecotoxicity or plant-toxicity evidence where the program requires it, and your quality control procedures. If a supplier hands you a resin certificate, ask instead whether your exact finished configuration is covered under it and at what thickness, color and print specification.
4. Request a Proposal and Confirm Scope
Contact a program-approved independent verifier and send the finished-pack specification. Ask for a written scope and quote that names the standard and revision, the test methods, the components in scope, the colorant and thickness assumptions, the production sites, and the marketing claims covered.
Get two or three quotes. Labs scope differently on sample counts, on whether printing is applied to test specimens, and on how many revisions are included, so the spread is often wide. You are looking for a scope with no major material or claim left ambiguous. Anything unresolved there becomes a change order later at a worse rate.
5. Complete Laboratory and Verification Testing
Representative sampling comes first. The verifier cuts or receives samples in the form that will be certified, and a sample pulled from a line running an unrepresentative thickness or color batch will not support a certificate. Expect the pack to be tested with its actual print, coating and adhesive, not as a clean film.
Then the program runs its required sequence. That normally covers biodegradation under controlled composting, disintegration through a 2 mm sieve, ecotoxicity by plant germination and earthworm survival, chemical composition including regulated heavy metals, and for many programs total organic fluorine or PFAS limits. A common industry reference point is 90% of organic carbon converted to carbon dioxide within 180 days, 90% disintegration through a 2 mm sieve within 12 weeks, and germination of at least 90% across two plant species, with ecotoxicity judged against the reference material.
California AB 1200 sets a total organic fluorine limit of 100 ppm for food-serviceware components, which is why fiber-based packs with grease-resistant chemistry get an extra fluorine screen. The point of running the approved sequence rather than quoting literature values is simple: a certificate only covers what the verifier actually tested.
Biodegradation and disintegration alone take the bulk of the calendar, since the test runs to 180 days and 12 weeks respectively, and the ecotoxicity work follows the disintegration result. You know it worked when the verifier issues a signed report listing your configuration and all criteria met, not when a resin datasheet says so.
6. Resolve Nonconformities and Implement Quality Control
A failed result is normal on a first submission, and the useful question is which variable moved the number. Common culprits are film thickness falling below the tested value, a color masterbatch adding heavy metals or poor disintegration, a barrier coating blocking microbial access, an ink or adhesive failing ecotoxicity, or production drift between the sample and your regular run.
Corrections usually mean a reformulation, a supplier switch, a print change, or a documented incoming-material control with tighter inspection. Retesting follows, and the retest can be scoped to the affected criteria rather than the full set. Before final review, you also need batch records, change-notification procedures and documented manufacturing consistency for the certified configuration.
7. Obtain the Certificate and License the Mark
After the final verifier review, the body issues a certificate identifying the certified company, the certified product and the scope limits. That scope matters: a certificate covering one bag size at 30 micron does not cover a heavier version.
Printing the mark is a separate step and a separate permission. Most bodies require you to submit artwork for approval and issue a mark license covering the exact layout, color and placement. Check the certificate number in the body’s public directory before it goes to print, and again before you change any artwork. Certification bodies maintain public records of misuses, and a blurry or inconsistent logo is a counterfeit signal rather than a design choice.
8. Maintain Compliance and Control Renewal
Put renewal on a calendar rather than a reminder. Certificates are typically valid for about three years, with annual fees and periodic audits in between. Book the retest months before expiry, not after, because the testing calendar does not compress.
More important, get written approval before changing resin supplier, additive package, colorant, thickness, coating, ink, adhesive, production site or certified configuration. These changes can invalidate the basis of the original certificate, and a small masterbatch tweak has forced more than one brand to restart the program. Route every such change through a documented approval step with the verifier before you buy the material.
Common Mistakes That Fail Applications
Certifying a resin instead of the pack. Fix: specify the finished configuration from the start, including print, coating and adhesive, and confirm in writing that the certificate covers your product and not just the resin grade.
Choosing the wrong composting conditions. Fix: ask the waste hauler or facility in your target market what they actually accept, then certify to that route. A home-compostable claim on an industrial-only pack misleads customers and triggers enforcement.
Omitting minor components. Fix: list every closure, seal, label, tie and decoration in the bill of materials. A compostable bag with a conventional nylon zip is a contamination problem at the facility.
Testing a non-representative sample. Fix: sample from production at the certified specification, with the print and coating applied, and let the verifier witness or specify the sampling plan.
Relying on a vague supplier declaration. Fix: request the underlying test report and its scope, plus the certificate number, and verify that number in the issuing body’s public database.
Making claims beyond the certificate. Fix: write your on-pack wording to the scope. “Industrially compostable” and “home compostable” are different claims, and “compostable” with no route named is the one regulators challenge first.
Changing the package after approval. Fix: route every material, supplier, site and specification change through a written change-notification procedure with the certification body.
Confusing food-contact approval with compostability certification. Fix: treat them as separate systems. An FDA food-contact notification or an EU framework regulation authorization says nothing about compostability, and a compostable certificate says nothing about food contact. If the pack holds food, you may need both, plus extended producer responsibility registration in markets such as Germany.
Frequently Asked Questions
How long does it take to certify compostable packaging?
Plan on nine to twelve months from first sample to issued certificate, and that is for a straightforward single-market submission. The biodegradation test alone runs 180 days and the disintegration test 12 weeks, and those start only once the formulation is frozen and samples reach the lab. Add two to three weeks for scope and quotation, and allow extra time when your resin supplier will not disclose a proprietary additive package. Dual certification for both industrial and home composting typically adds several months.
What does compostable packaging certification cost?
Labs and certification bodies generally do not publish price lists, and the honest answer is that the quote depends on scope. The biggest cost driver is testing the finished pack rather than a resin grade, because each distinct configuration, color and thickness needs its own specimens. Additional drivers include print and coating variants, ecotoxicity and fluorine screening, revision cycles after a failed result, and mark license artwork review. Request written quotes from two or three program-approved verifiers and compare scopes, not just totals.
Is there one certificate that works for compostable packaging worldwide?
No single certificate covers every market. US buyers typically look for BPI certification under ASTM D6400 or D6868, European buyers reference EN 13432 conformity certified by bodies such as TUV Austria or Din Certco, and Australia has AS 4736 and AS 5810 through Australian Bioplastics. A TUV Austria OK Compost mark is widely recognized beyond Europe, which sometimes lets a single submission cover several markets. If you sell across regions, confirm with each verifier which of your markets the certificate will satisfy before commissioning the work.
Can a certificate for a compostable resin certify the finished package?
Only in a narrow case, and you need written confirmation to rely on it. Some converters hold certifications that already cover the exact configuration they will supply you, which is legitimate and much faster than certifying your own brand. What does not work is assuming a resin supplier’s certificate transfers to your pack once you add ink, a coating, a label or a different thickness. Ask the issuing body whether your product, color and specification appear in the certified scope, and get the answer in writing before you print a claim.
Can certified compostable packaging go in a home compost bin?
Only if the certificate covers home composting. OK Compost HOME, AS 5810, TUV Austria’s home route and BPI’s home composting certification address ambient backyard conditions, typically around 20 to 30 C. Industrial certificates under EN 13432, ASTM D6400, D6868 or AS 4736 assume a controlled facility near 55 to 60 C, and a pack that passes there can persist in a garden bin for years. If no home-certified option exists in your market, an industrial mark is still useful, but your disposal wording has to say so clearly.
Do inks, coatings, labels, and adhesives need separate certification?
They need to be inside the certification scope, but you rarely pursue separate certificates for each. Certification bodies require the complete construction to be tested, so water-based and solvent-based inks, adhesives, coatings, liners, closures, labels and decorations all belong in the bill of materials and the tested specimen. A conventional adhesive or a grease-resistant coating can be the component that fails ecotoxicity or exceeds the fluorine limit. Tell the verifier about them at scoping rather than after a failure, because adding one later changes the approved configuration.
Conclusion: Start With the Bin, Not the Resin
How to get compostable packaging certification comes down to three matchings. Match the pack to the disposal route your customers actually have, match the certificate to the market you sell in, and match the on-pack wording to what a person standing at a bin can realistically do.
Do the first two before you freeze the formulation, because both get expensive to change afterwards. Then set the renewal and change-notification reminders so the certificate stays valid in 2026 and beyond.