Sustainable Packaging Certifications Explained: FSC, Seedling, How2Recycle, and More

The packaging industry is saturated with environmental claims. "Eco-friendly," "sustainable," "green," and "planet-positive" appear on packaging from brands whose actual environmental footprint ranges from genuinely reduced to barely changed. Regulators are increasingly paying attention: the FTC Green Guides in the US, the EU Green Claims Directive (proposed), and the UK Competition and Markets Authority's Green Claims Code all create legal exposure for vague or unsubstantiated environmental claims.

Certification changes the calculus. A third-party certified claim — an FSC logo, a Seedling compostable mark, a How2Recycle label — is substantiated by an independent body to a published standard. It is legally defensible, consumer-trustworthy, and auditable.

This guide explains the major certifications relevant to packaging, what each covers, and how to apply them to packaging artwork correctly.

Why Certification Matters

The FTC Green Guides (16 CFR Part 260) require that environmental claims on packaging be truthful, non-deceptive, and substantiated. A claim that packaging is "recyclable" must be substantiated — meaning the packaging must actually be recyclable by a majority of consumers where it's sold (the FTC standard is access to recycling facilities by at least 60% of the US population).

Unsubstantiated claims expose brands to FTC enforcement actions, class action lawsuits, and retailer de-listing (many major retailers now require verified environmental claims in their supplier sustainability programmes).

Third-party certifications provide substantiation. When an FSC logo appears on packaging, it is backed by a documented chain of custody through the supply chain, audited by an FSC-accredited body. When a Seedling logo appears on a compostable pouch, the pouch has been tested to EN 13432 (European standard) or ASTM D6400 (US standard) by an accredited laboratory.

Forest Stewardship Council (FSC)

What it covers: Responsible forest management and chain of custody for paper, board, and wood-based packaging materials.

What the logos mean:

• FSC 100% — all the material in the product comes from FSC-certified forests
• FSC Recycled — all the material comes from post-consumer or pre-consumer reclaimed sources
• FSC Mix — the material comes from FSC-certified forests, recycled material, or FSC Controlled Wood (the minimum standard)

Who issues it: FSC International, through an international network of accredited certification bodies.

How to get certified: Your paper or board supplier may already hold FSC Chain of Custody (CoC) certification. If they do, you can specify FSC-certified material and use the FSC logo on your packaging, provided your own business also holds an FSC CoC certificate (required for businesses that sell, distribute, or manufacture products bearing the FSC logo). FSC certification costs approximately $1,000–$3,000/year for small businesses, plus auditor fees.

How to display it: The FSC logo must be displayed with the certification body number (CB-COC-XXXXXX) beneath it. Minimum size is 10mm x 10mm. The logo must appear in a contrasting position — it cannot be screened back or reversed in a way that makes it illegible. FSC provides artwork files in approved formats to certified licence holders.

Common error: Printing the FSC logo on packaging without holding a valid FSC CoC licence. This is an FSC policy violation and a legal risk if enforcement is pursued. If your supplier is certified but your business is not, you cannot legally use the logo.

Programme for the Endorsement of Forest Certification (PEFC)

What it covers: Like FSC, PEFC covers responsible forest management and chain of custody. PEFC and FSC are competing standards with equivalent goals; PEFC is more prevalent in Europe, FSC more prevalent in North America and internationally.

How it differs from FSC: PEFC endorses national forest certification programmes rather than setting forest management standards directly. In the UK, the UK Woodland Assurance Standard (UKWAS) is PEFC-endorsed. In Scandinavia, the PEFC-endorsed national standards are widely used.

Practical implication: If your packaging supplier is in Europe and their board is PEFC certified, you may use the PEFC logo under equivalent conditions to FSC CoC certification.

Seedling (Compostable Certification)

What it covers: The Seedling logo certifies that packaging is industrially compostable — meaning it will break down in an industrial composting facility within a defined timeframe (typically 12 weeks) under controlled conditions of temperature and humidity.

Standard: EN 13432 (Europe) or equivalent. In the US, the equivalent standard is ASTM D6400. The Seedling logo is issued by European Bioplastics for EN 13432 certified products.

Who issues it in the US: The Biodegradable Products Institute (BPI) issues BPI certification to ASTM D6400 for the US market. BPI certification is widely accepted by US industrial composting facilities.

Critical distinction — industrial vs. home composting: Industrial composting operates at 55–60°C. Most compostable packaging will not break down in a home compost bin at ambient temperatures. If packaging is certified industrial compostable and not certified home compostable, the claim on the packaging must specify "industrially compostable" — not just "compostable." A claim of "compostable" without qualification is potentially misleading where home composting is the likely disposal route.

Home compostable certification is a separate, more demanding standard. The OK compost HOME certification (issued by TUV Austria) and the Australian Home Composting Standard are the main references. Home compostable packaging is more expensive to produce and not all formats are available.

The infrastructure gap: Industrial compostable packaging only delivers its environmental benefit if it reaches an industrial composting facility. In the US, industrial composting infrastructure is limited — many jurisdictions do not have accessible industrial composting, and compostable packaging often ends up in landfill where it does not degrade meaningfully. This is a genuine environmental concern when brands claim compostable credentials.

How2Recycle

What it covers: A North American standardised on-package labelling system that tells consumers exactly how to recycle the packaging, including which specific part of the package goes in which recycling stream.

How it works: How2Recycle labels include a category (Store Drop-Off, Widely Recycled, Check Locally, Not Yet Recycled) and a material description. The programme is administered by the Sustainable Packaging Coalition (SPC).

Why it matters: "Recyclable" as a generic claim is imprecise. Whether packaging is actually recyclable depends on the local infrastructure available to the consumer. How2Recycle resolves this by providing specific, actionable information:

• Widely Recycled — recyclable in more than 60% of US communities
• Check Locally — recyclable in some communities but not all
• Store Drop-Off — not curbside recyclable, but accepted at retailer drop-off points (common for PE film and flexible plastics)
• Not Yet Recycled — not currently recyclable in the US

How to use it: Brands must apply to use the How2Recycle label and submit each packaging format for evaluation. The SPC evaluates whether the recyclability claim is accurate and issues the appropriate label category. Annual fees apply.

FTC alignment: The How2Recycle programme was developed in consultation with the FTC Green Guides. Using it substantially reduces the legal risk of unsubstantiated recyclability claims.

The Mobius Loop (Recycling Symbol)

What it is: The three-arrow recycling symbol (ISO 7000-1135) has two uses: (1) with a percentage inside, indicating recycled content; (2) without a percentage, indicating the packaging is recyclable.

Important caveat: The generic Mobius loop without additional qualification is not a certification — it is an unverified claim. Many brands use it to suggest recyclability without having verified that the packaging is actually recyclable in consumer waste streams. The FTC Green Guides provide explicit guidance that a generic Mobius loop may be deceptive if the packaging is not widely recyclable.

How to use it correctly: If used to indicate recycled content, the percentage must be substantiated (e.g. "30% Post-Consumer Recycled content" is a verifiable claim). If used to indicate recyclability, the packaging must actually be widely recyclable — and using How2Recycle instead of the generic loop is significantly more defensible.

SCS Recycled Content Certification

What it covers: Verification of recycled content claims in packaging materials.

Who issues it: SCS Global Services, an independent third-party certification body.

When to use it: If a brand claims a specific percentage of post-consumer recycled (PCR) content in packaging — for example, "made with 50% recycled plastic" — SCS certification verifies that the recycled content percentage is accurate and audited through the supply chain.

Why it matters: PCR content claims are increasingly common in packaging. Without independent verification, a claim of "50% recycled plastic" cannot be substantiated to the legal standard. SCS certification provides an audited chain of custody.

Amazon Climate Pledge Friendly

What it covers: For brands selling on Amazon, the Climate Pledge Friendly badge enables packaging that meets certain sustainability certifications to display a certification badge on the Amazon listing.

Qualifying certifications: Amazon accepts a range of recognised certifications including FSC, USDA Organic, Rainforest Alliance, Carbon Trust, and others. Compostable and recycled content certifications also qualify.

Why it matters commercially: Products carrying the Climate Pledge Friendly badge benefit from dedicated placement in Amazon's sustainability shopping experience, which receives significant promotional support. For brands whose packaging qualifies, this is a meaningful commercial benefit beyond the environmental positioning.

Putting It Together: On-Package Certification Display

When multiple certifications apply to a packaging format (for example, FSC-certified board with a How2Recycle label), the display rules for each certification must be followed independently:

• Each logo must meet the minimum size and reproduction requirements of its issuing body
• The logos must not be placed in a way that creates confusion about what each covers (for example, placing FSC and Seedling logos side by side without clear context suggests the packaging is both FSC certified and compostable, which may not be the case)
• Certification numbers or body identifiers required by the issuing body (as with FSC) must appear with the logo

FAQ

Can I use the word "sustainable" on packaging without a certification? "Sustainable" is a broad claim that is difficult to substantiate to a specific standard. The FTC Green Guides warn that unqualified "sustainable" claims are likely to be interpreted broadly by consumers and therefore require broad substantiation. Using specific, certified claims (FSC certified, 30% PCR content, certified compostable) is more legally defensible than a general "sustainable" claim without certification.

How long do certifications take to obtain? FSC CoC certification typically takes 2–4 months. Compostable certification for a specific packaging format through EN 13432 or ASTM D6400 testing takes 3–6 months. How2Recycle label approval takes 4–8 weeks after submission. These timelines should be built into any packaging design and launch timeline where certifications are required.

Is certified sustainable packaging more expensive? FSC-certified board typically carries a 5–15% premium over non-certified equivalent grades. Certified compostable films and structures are 20–40% more expensive than comparable conventional structures at current market prices. These premiums are decreasing as sustainable material volumes increase, but they remain real cost inputs that need to be included in packaging cost-per-unit calculations.