Most environmental claims that create legal exposure aren't written by people trying to mislead anyone. They're written by marketing teams under deadline pressure, using language that sounds reasonable, referencing certifications that seem credible, and making comparisons that feel fair. The problem isn't intent. It's that the gap between what sounds reasonable and what's legally defensible is wider than most people realize.

These are the five patterns we see most often.

1. Using the Certification Logo as a Claim

A certification mark on a product page communicates something specific: that the certified product or process meets the standard's requirements, for the scope covered by the certificate. The logo doesn't communicate anything beyond that scope — but the design context often implies that it does.

A fabric certified to OEKO-TEX Standard 100 has been tested for harmful substances. The certification says nothing about how the cotton was grown, how the garment was assembled, what happens to the dyebath, or what the brand's broader supply chain looks like. Using the OEKO-TEX logo alongside copy that references "responsible manufacturing" or "sustainable production" creates an implicit claim that the logo may not support.

This matters because ECGT Article 6 covers implied misleading claims, not just express ones. If the visual context of a certification mark creates a broader impression than the certification warrants, that impression is what's evaluated — not just the certification itself.

The fix: be explicit about scope. "This fabric is OEKO-TEX Standard 100 certified for harmful substances" is accurate and limited. "Sustainably certified" is neither.

2. Comparing to No Baseline

"Lower carbon footprint than our previous collection" appears in marketing copy more often than it should. The problem isn't that the claim is necessarily false — it's that it's unverifiable by the consumer and provides no reference point against which to evaluate it.

Under the Unfair Commercial Practices Directive as amended by ECGT, comparative claims must specify what they're comparing to, using current data and a consistent methodology. "Previous collection" doesn't satisfy that standard because the previous collection's footprint presumably wasn't published. If a consumer can't check the comparison, the comparison doesn't substantiate anything.

The same applies to industry comparisons: "50% less water than industry average" requires you to define the industry, specify the methodology, cite the data source, and confirm the data is current. Doing all of that is genuinely possible — it just takes work. Assertions without any of it are prohibited.

3. Claiming Process When You Have Product Data

This is a subtle one. A brand might have excellent LCA data for a specific fabric — say, a recycled nylon that uses significantly less energy and water per kilogram than virgin nylon. That data is real. But the claim that gets made is often "sustainably produced," which refers to the manufacturing process, not the material.

The data that was actually measured (material production impacts) doesn't necessarily support the claim being made (process). If the cut-and-make facility hasn't been assessed, if the dyeing and finishing impacts aren't in the data, if transportation isn't included — then "sustainably produced" is asserting something broader than the evidence covers.

This kind of drift from evidence to claim happens when sustainability data is generated by one team (supply chain, materials) and communicated by another (marketing, brand). The data is real; the claim just reached further than it should have.

4. The "Better" That Goes Nowhere

"Better for the planet." "Better for future generations." "A more sustainable choice." These formulations feel aspirational and warm. They're also, under current EU law, effectively prohibited as generic descriptors unless they're substantiated with specifics.

What does "better" mean? Better than what, measured how? The directive's requirement for specificity isn't pedantic — it reflects the straightforward observation that a claim without a reference point communicates nothing except a positive environmental association. And that's precisely what Annex I aims to prevent.

The instinct here is to soften claims so they can't be attacked. "We're not saying it's perfect, just better." But softer language isn't safer language when the softening removes the substantiation. A specific, precise, verifiable claim is legally stronger than a hedged one, even if it sounds less sweeping.

5. Treating Compliance as a One-Time Audit

The fifth mistake is more structural than any individual claim. Many brands treat ECGT compliance as something to address once — do the audit, remove the banned phrases, update the style guide — and consider it resolved.

The problem is that claims evolve. Marketing campaigns launch. New product pages go live. Agency copy gets approved under deadline. The compliance gap reopens quickly, and it often reopens in places that weren't reviewed.

What ECGT actually requires isn't a one-time clean-up but an ongoing standard for what claims are permitted to say — and that standard needs to be embedded in how copy gets written and approved, not just reviewed retrospectively. The brands that consistently stay on the right side of this regulation are the ones that have made the standard part of their creative workflow, not an external check on it.

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References: Directive 2024/825/EU; Directive 2005/29/EC Annex I (as amended); ACM Guidance on Sustainability Claims (2024).