Green claims compliance is not a future concern. UK enforcement has been active since April 2025. US FTC Green Guides apply right now. The EU ECGT Directive (2024/825) applies from September 2026, which means the compliance window for EU-facing businesses is closing, not opening.
Most companies making environmental claims in their marketing, product descriptions, and sustainability reports are operating under one of three assumptions: that green claims compliance is primarily an EU issue, that it applies to large companies rather than SMBs, or that the threshold for enforcement is significantly worse than the claims they are making. All three assumptions are wrong. [1]
This guide covers what green claims compliance requires under EU, UK, and US law, what the consequences of non-compliance are, and what companies need to do before September 2026.
Key Takeaways
- Green claims compliance is active under UK CMA enforcement (since April 2025), US FTC Green Guides (active since 1992), and will apply under EU ECGT from September 2026.
- The three frameworks share common requirements: claims must be specific, substantiated, non-misleading by omission, and verified by evidence held before the claim is made.
- Generic environmental terms including “eco-friendly”, “sustainable”, “green”, “responsible”, and “carbon neutral” are non-compliant without specific substantiation in all three markets.
- GreenClaim.ai scans websites and marketing materials for green claims risk under EU, UK, and US regulations simultaneously: the fastest way to identify exposure before enforcement does.
- Companies making verified, specific environmental claims, such as planting trees with published field-measurement data, are better positioned under all three frameworks than those using vague language.
What Is Green Claims Compliance? Greenwashing, Environmental Claims, and the Law
Green claims compliance refers to the legal and regulatory requirements that govern how companies communicate their environmental performance and sustainability commitments. A company is compliant when its environmental claims are specific, accurate, substantiated by evidence held before the claim is made, and not misleading by omission.
Greenwashing, defined as making environmental claims that are vague, misleading, or unsubstantiated, is the central concern all three frameworks address. Non-compliance is not primarily about false statements. The most common compliance failures are claims that are technically accurate but vague enough to create a misleading overall impression, and claims that omit significant negative environmental information. Both are enforceable under UK, EU, and US law.
EU Green Claims Compliance: ECGT Directive 2024/825
The EU’s Empowering Consumers for the Green Transition Directive (ECGT, 2024/825) adds specific prohibitions to Annex I of the Unfair Commercial Practices Directive. These prohibitions are absolute. No case-by-case assessment is required. Member states must apply measures from 27 September 2026.
What EU green claims compliance prohibits outright:
- Generic environmental claims such as “eco-friendly”, “green”, “sustainable”, “responsible”, “conscious”, “natural”, “biodegradable”, “climate friendly”, and “nature’s friend” where the trader cannot demonstrate recognised excellent environmental performance
- Environmental claims about the whole product or company that are based only on one specific aspect
- Claiming a neutral, reduced, or positive environmental impact based on carbon offset schemes
- Displaying sustainability labels not based on approved certification schemes or established by public authorities
Penalties: member states must set maximum penalties of at least 4% of annual turnover in the relevant member state, or EUR 2 million, whichever is higher. Additional penalties include confiscation of revenues from the non-compliant practice and exclusion from public procurement.
UK Green Claims Compliance: CMA Green Claims Code
The UK’s green claims compliance framework is built on the Consumer Protection from Unfair Trading Regulations 2008 and the CMA’s Green Claims Code, which identifies six principles for compliant environmental claims. The Digital Markets, Competition and Consumers Act (DMCCA) gave the CMA direct fining powers from April 2025: up to 10% of global annual turnover, with no court order required.
The six principles of UK green claims compliance:
- Claims must be truthful and accurate
- Claims must be clear and unambiguous
- Claims must not omit or hide important information
- Comparisons must be fair and meaningful
- Claims must consider the full lifecycle of the product or service
- Claims must be substantiated by evidence held before making the claim
The ASA enforces green claims compliance in advertising specifically, using AI to proactively monitor for non-compliant environmental claims. Companies no longer need to be reported. The ASA finds them.
US Green Claims Compliance: FTC Green Guides
The US FTC Green Guides (16 CFR Part 260) have governed environmental marketing claims since 1992. The FTC has enforcement authority under Section 5 of the FTC Act and can impose penalties of up to $53,088 per violation. A review of the Green Guides is currently underway, with expectations that requirements will become more stringent to align with international standards.
US green claims compliance focuses on:
- General environmental benefit claims: broad terms like “eco-friendly” or “environmentally safe” require qualification and substantiation to be compliant
- Carbon offset and carbon neutral claims: must be based on specific, verifiable, permanent emissions reductions. The basis for the claim must be disclosed
- Recyclable, biodegradable, and compostable claims: must reflect what happens in real-world disposal conditions, not ideal laboratory conditions
- Certifications and endorsements: must be from independent, legitimate bodies with publicly available criteria
What EU, UK, and US Green Claims Compliance Frameworks Have in Common
Despite differences in legal structure and enforcement mechanism, the EU ECGT, UK Green Claims Code, and US FTC Green Guides share the same core requirements for green claims compliance:
- Specificity: Claims must be specific enough that a reasonable person can understand exactly what is and is not being claimed.
- Substantiation: Evidence must exist before the claim is made, not gathered after a challenge is raised.
- Completeness: Claims must not omit significant negative environmental information that would change a reasonable person’s view.
- Independence: Where certification or verification is claimed, it must come from a genuinely independent body, not a self-assessment.
A company that meets these four requirements is compliant in all three markets. A company that fails any of them is exposed in at least one.
How to Achieve Green Claims Compliance
Three practical steps apply across all three regulatory frameworks:
Audit every existing environmental claim. Every green claim on your website, packaging, advertising, and sustainability reporting is a potential compliance issue. This includes product descriptions (“made from sustainable materials”), company-level claims (“we are committed to reducing our environmental impact”), and campaign language (“choose the green option”). GreenClaim.ai scans websites and marketing copy for green claims risk under EU, UK, and US regulations simultaneously, identifying the specific claims that carry risk and suggesting compliant alternatives.
Replace vague claims with specific ones. “Sustainable” is not compliant without substantiation. “Plants one verified tree per order in Tanzania, independently field-measured at 0.025 tonnes CO2 per tree per year” is a specific, evidenced claim. The specificity itself is the compliance. ForestNation’s Working Trees field study methodology is an example of the kind of published, specific evidence base that underpins defensible environmental claims across all three markets.
Build the evidence before September 2026. EU ECGT applies from 27 September 2026. UK enforcement is active now. US FTC scrutiny is ongoing. The companies best positioned when the EU enforcement deadline arrives are those that have already reviewed, revised, and substantiated their environmental claims. The deadline is not a starting gun for compliance work. It is the date by which compliance work should be complete.
Research and References
- EU ECGT Directive 2024/825, amending Directives 2005/29/EC and 2011/83/EU. Member states must apply measures from 27 September 2026. eur-lex.europa.eu
- UK CMA Green Claims Code (2021). Digital Markets, Competition and Consumers Act gives direct fining powers from April 2025. gov.uk
- US FTC Green Guides, 16 CFR Part 260 (1992, revised 2012, under review 2024). Penalties up to $53,088 per violation. ftc.gov
Frequently Asked Questions
What is green claims compliance?
Green claims compliance refers to meeting the legal requirements that govern how companies communicate environmental performance. Under EU ECGT, UK Green Claims Code, and US FTC Green Guides, compliant claims must be specific, substantiated by evidence held before the claim is made, not misleading by omission, and independently verified where certification is claimed.
When does the EU green claims directive apply?
EU member states must apply the ECGT Directive (2024/825) measures from 27 September 2026. UK green claims compliance enforcement is already active since April 2025 under the CMA’s direct fining powers. US FTC Green Guides have been in effect since 1992 and are currently under review with expected tightening.
What claims are not allowed under green claims compliance?
Generic absolute claims including “eco-friendly”, “green”, “sustainable”, “responsible”, “conscious”, “natural”, and “planet-friendly” are not allowed without specific substantiation demonstrating recognised excellent environmental performance. Carbon neutrality and net zero claims based on offset purchases are banned under EU ECGT and high-risk under UK and US frameworks. Claims covering the whole product or company based on only one environmental aspect are also non-compliant.
How can companies prepare for green claims compliance?
Audit all existing environmental claims against EU, UK, and US requirements. Replace vague terms with specific, evidenced statements. Ensure evidence for each claim exists before the claim is published. GreenClaim.ai scans websites and marketing materials for green claims risk simultaneously across all three regulatory frameworks, identifying exposure and suggesting compliant alternatives. The September 2026 EU deadline is the completion date for compliance work, not the start date.
