Why are generic claims like "eco-friendly" now the highest-risk words on a pack?

From puffery to per se

For most of advertising law's history, the vaguest environmental words were the safest. "Eco-friendly", "green", "kind to the planet" — claims so diffuse they asserted nothing checkable — sheltered under the doctrine of puffery: statements no reasonable consumer would treat as factual, and therefore no regulator could treat as false. The specific claim carried the risk; the vague one carried the mood. The 2020s have inverted that hierarchy, and the inversion is now the sharpest single change in what a package may say. In the European Union, from the application of the Empowering Consumers Directive, a generic environmental claim without demonstrated "recognised excellent environmental performance" is unfair in all circumstances — no consumer-impact analysis, no case-by-case assessment (Directive (EU) 2024/825). In the United Kingdom, vague terms were the first target of the CMA's fashion-sector undertakings. In the United States, the Green Guides have counselled against unqualified general benefit claims since 2012, and the sweep evidence that launched the enforcement decade found vagueness to be the modal failure. The vaguest words on the pack are now the likeliest to be unlawful.

This article reconstructs how that inversion happened, what the new rules actually require, and what survives for the words the market has spent thirty years teaching consumers to look for.

The evidential turn against vagueness

The inversion begins with evidence rather than doctrine. The coordinated website sweeps of November 2020 — the EU's CPC screening and the CMA/ICPEN global sweep, both announced on 28 January 2021 — made vagueness measurable. The Commission's sweep examined 344 claims flagged as dubious and found that "in 37% of cases, the claim included vague and general statements such as 'conscious', 'eco-friendly', 'sustainable'", while "in 59% of cases the trader had not provided easily accessible evidence to support its claim" (European Commission, 2021). The ICPEN sweep found "4 in 10" of the websites examined "appeared to be using tactics that could be considered misleading", listing first among them "[v]ague claims and unclear language including terms such as 'eco' or 'sustainable'" (CMA, 2021). The Commission's 2020 inventory study, later quoted in the Green Claims Directive's explanatory memorandum, put the figure at scale: "a considerable share of environmental claims (53.3%) provide vague, misleading or unfounded information about products' environmental characteristics across the EU" (European Commission, 2023).

The methodological caveats — examined in full in the prevalence article — matter: these were online sweeps, pre-screened samples, 2020 data. But their doctrinal effect was immediate and largely independent of their precision. They reframed vagueness from harmless mood-setting into the primary mechanism of green deception: not lies about specifics, but atmospheres unmoored from specifics. And regulation followed the reframing.

The EU rule: generic claims and the excellence gate

The Empowering Consumers Directive's machinery has two interlocking parts.

The definition: a "generic environmental claim" is "any environmental claim made in written or oral form, including through audiovisual media, that is not included on a sustainability label and where the specification of the claim is not provided in clear and prominent terms on the same medium" (Directive (EU) 2024/825, art. 2). The escape route is built into the definition itself — a claim ceases to be generic when its specification appears "in clear and prominent terms on the same medium". "Eco-friendly" alone is generic; "eco-friendly: 100% recycled fibre, home compostable" on the same panel is, formally, no longer generic, and falls to the ordinary misleadingness rules.

The prohibition: Annex I point 4a makes it per se unfair to "[m]ak[e] a generic environmental claim for which the trader is not able to demonstrate recognised excellent environmental performance relevant to the claim" (Directive (EU) 2024/825). The gate is narrow by design. "Recognised excellent environmental performance" means "environmental performance compliant with Regulation (EC) No 66/2010 or with national or regional EN ISO 14024 type I ecolabelling schemes officially recognised in the Member States, or top environmental performance in accordance with other applicable Union law" (Directive (EU) 2024/825, art. 2 point (s)). In practice: the EU Ecolabel, an official national type I scheme, or top-tier performance under Union instruments. A trader holding such performance may say "eco-friendly"; everyone else must specify or stay silent.

The design is worth pausing on, because it is subtler than a ban. The EU has not outlawed the vocabulary; it has priced it. Generic words are reserved for demonstrable excellence, on the theory that only excellence makes the unspecific claim true in the round; the merely-good product must say in what way it is good. The rule thereby converts the shelf's vaguest words into its strongest claims — inverting three decades of usage in which the generic term was the refuge of the weakest case.

The convergent regimes

The United Kingdom reached a similar position by guidance and undertaking rather than blacklist. The Green Claims Code requires claims to be "clear and unambiguous" and to avoid omitting important information (CMA, 2021b); the 2024 fashion undertakings operationalised it — ASOS, Boohoo and George at Asda accepted that ambiguous terms like "eco", "responsible" or "sustainable" must not be used without explanation, that statements must be "specific and clear, such as 'organic' or 'recycled'", and that "natural" imagery, logos or icons must not "suggest a product is more environmentally friendly than it actually is" (CMA, 2024). With the DMCC Act's direct-enforcement powers behind the same principles from April 2025, the UK position is functionally the EU's without the excellence gate: generic claims are not per se unlawful, but the regulator has published, in undertaking form, exactly what it considers them to require — and can now fine to ten per cent of worldwide turnover on its own determination (the UK article).

The United States' formal position predates both. The 2012 Green Guides advise that "[u]nqualified general environmental benefit claims are difficult to interpret and likely convey a wide range of meanings", that marketers "should not make unqualified general environmental benefit claims" because substantiating all reasonable interpretations is rarely possible (16 CFR § 260.4; paraphrase — see verification note), and the FTC's 2022 bamboo enforcement — Kohl's and Walmart penalised USD 2.5 million and USD 3 million over rayon marketed with claims such as "sustainable", "highly renewable" and "eco-friendly" — shows the words themselves in the charge sheet (FTC, 2022). The American difference is machinery, not doctrine: guidance rather than blacklist, penalty-offense authority rather than turnover fines, and a federal enforcement tempo that has left the field to states and private plaintiffs (the US article).

The Netherlands' ACM distilled the convergence into its first rule of thumb — "Use correct, clear, specific and complete sustainability claims" — with vague claims the guideline's principal target (ACM, 2023). And Canada's Competition Bureau, in its 2025 guidelines, stated the shared premise from the enforcement side: "Companies are free to make any environmental claims they wish, as long as they are not false or misleading, and have been adequately and properly tested or substantiated where required" (Competition Bureau, 2025) — a formulation whose bite, for generic words, lies in the impossibility of testing a claim that asserts nothing in particular.

Why vagueness fails substantiation by construction

The doctrinal core of the inversion deserves explicit statement, because it explains why every regime arrives at the same place. Substantiation regimes require evidence matched to the claim's meaning; the meaning of a generic claim is whatever the consumer reasonably takes it to be; comprehension evidence shows consumers take generic green words to mean broad, multi-dimensional superiority — lifecycle-wide, category-relative, materially significant. The substantiation burden is therefore not "some environmental merit" but the claim's full reasonable meaning — and almost no product can evidence superiority across every dimension a reasonable reader might include. Vague claims are thus not under-substantiated as a contingent matter; they are unsubstantiatable in principle, except by the products whose across-the-board excellence the EU's gate happens to describe. The puffery doctrine assumed vague words meant nothing; the substantiation era discovered they mean too much.

The packaging corollary follows. On-pack space compresses claims toward the generic — single words, leaf motifs, green fields — and packaging is therefore where the inversion lands hardest. The visual register is included: the CMA's undertakings treat imagery as claim-making, the Commission's sweep counted logos and colouring, and the EU definition's "in any form, including... pictorial, graphic or symbolic representation" (Directive (EU) 2024/825, art. 2 point (o)) reaches the green wash of a panel as readily as the word "green". The safest pack surface under the new regimes is, by design, the most specific one — the percentage, the named material, the scoped statement — which is precisely the surface this library's third theme spends its length decoding.

Why generic claims go first: the enforcement economics

One further pattern in the record deserves explanation: across every jurisdiction, generic claims are enforcement's first target — the sweeps' lead finding, the fashion undertakings' opening item, the ACM's first rule, the blacklist's flagship entries. The priority is not moral but economic, and understanding it predicts where enforcement goes next.

Generic claims are the cheapest cases in the field. Proving a specific claim false requires engaging its subject matter — testing protocols, infrastructure statistics, lifecycle models — the expensive, contestable, expert-dependent terrain this theme's substantiation article maps. Proving a generic claim unlawful requires, under the new instruments, almost nothing: under the EU rule, the enforcer shows the claim is generic and the trader lacks demonstrated recognised excellence — a documentary question; under the UK undertakings' logic, the vague term without explanation is itself the breach; in a sweep, vagueness is codable from a screenshot. The per se turn, seen from this angle, is a docket-management technology: it converts the hardest question in claims law (is this misleading?) into the easiest (is this generic?), letting authorities produce volume enforcement with sweep-level resources.

The economics have two second-order consequences the field is beginning to register. The first is displacement: as generic language is priced out, marketing migrates toward the adjacent forms — imagery without words, brand names with green connotations, certified badges, and specific claims at the edge of their substantiation. Each is dearer to police than the vague word was cheap; the enforcement economics that made the first wave easy make the second wave harder, and the migration is already visible in the undertakings' imagery clauses and the badge gateway's arrival. The second is a selection effect on the enforcement record itself: because generic cases are cheap, they dominate the visible caseload — which risks teaching the field that greenwashing is vagueness, when the costlier deceptions (the evidence-meaning overruns, the undisclosed models) are simply harder to surface. The prevalence question this distortion feeds belongs to the evidence articles; the doctrinal point belongs here: the highest-risk words on the pack are the vaguest partly because they are genuinely the likeliest to mislead, and partly because they are the easiest to catch — and a complete account of the generic-claims turn honours both halves.

What survives for the old vocabulary

The practical residue can be stated compactly. Generic environmental words survive in the EU only above the excellence gate or below the claim threshold — pure brand names and registered marks sit in contested territory the enforcement practice will map. Specified generics survive everywhere: the vague word anchored, on the same medium, clearly and prominently, to the specific basis. Certified badges replace much of the generic function lawfully — which is the quiet commercial logic linking this article to the self-declared-labels prohibition: as the free-floating word and the uncertified badge both close, the certified mark becomes the last general-purpose signal standing, with consequences for certification demand that the schemes have already noticed.

What does not survive is the assumption that vagueness is safe. Thirty years of marketing practice built on that assumption is now, in the EU, a per se infringement inventory; in the UK, a published undertaking template; in North America, the modal allegation in sweeps, suits and penalty actions. The mood words were the field's least examined instruments because they seemed to assert nothing. The claims decade's first discovery is that they asserted everything — and its first rule is that everything is exactly what a package may no longer casually claim.

References

ACM (Autoriteit Consument & Markt) (2023) Guidelines regarding sustainability claims, 13 June. Available at: Open source (Accessed: 18 August 2026).

CMA (Competition and Markets Authority) (2021) Global sweep finds 40% of firms' green claims could be misleading, 28 January. Available at: Open source (Accessed: 18 August 2026).

CMA (Competition and Markets Authority) (2021b) Environmental claims on goods and services (Green Claims Code guidance), 20 September. Available at: Open source (Accessed: 18 August 2026).

CMA (Competition and Markets Authority) (2024) ASOS, Boohoo and Asda: greenwashing investigation (case page, undertakings of 27 March 2024). Available at: Open source (Accessed: 18 August 2026).

Competition Bureau (2025) Competition Bureau issues final guidelines regarding environmental claims, 5 June. Available at: Open source (Accessed: 18 August 2026).

Directive (EU) 2024/825 of the European Parliament and of the Council of 28 February 2024, OJ L, 2024/825, 6.3.2024. Available at: Open source (Accessed: 18 August 2026).

European Commission (2021) Screening of websites for 'greenwashing': half of green claims lack evidence, IP/21/269, 28 January. Available at: Open source (Accessed: 18 August 2026).

European Commission (2023) Proposal for a Green Claims Directive, COM(2023) 166 final, explanatory memorandum. Available at: Open source (Accessed: 18 August 2026).

FTC (Federal Trade Commission) (2022) $5.5 million total FTC settlements with Kohl's and Walmart challenge "bamboo" and eco claims, business blog, April. Available at: Open source (Accessed: 18 August 2026).

16 CFR Part 260 (FTC Green Guides). Available at: Open source (Accessed: 18 August 2026).

Note on sources and verification

Quotations from Directive (EU) 2024/825 — the generic-claim definition, Annex I point 4a, the definitions of "environmental claim" and "recognised excellent environmental performance" — are verbatim from the EUR-Lex text. Sweep figures and quotations are verbatim from the Commission's press release IP/21/269 and the CMA's release as cited; their scope limits (online claims, pre-screened samples, November 2020 fieldwork) are treated fully in the prevalence article. The 53.3 per cent figure is quoted from the Green Claims Directive explanatory memorandum and derives from the Commission's 2020 inventory study. The characterisation of 16 CFR § 260.4's position on unqualified general benefit claims is a close paraphrase of the section's guidance; the section was not re-extracted verbatim for this article and the paraphrase is flagged accordingly. The CMA undertakings' terms are from the CMA case page. The Kohl's/Walmart penalty amounts and date (8 April 2022) are from the FTC business blog, the press-release page having been unavailable at retrieval. The argument that generic claims are unsubstantiatable in principle is this library's doctrinal synthesis, presented as analysis.

Last verified: 18 August 2026.