The ECGT Directive: what sustainability consultants need to prepare for before 2026

The sustainability space is not short on acronyms. CSRD, ESRS, SBTi, …most consultants can navigate these without difficulty. One acronym that still receives relatively little attention, however, is ECGT.

The Empowering Consumers for the Green Transition Directive is already in force at EU level and will begin shaping how companies communicate sustainability well before 2026. While it may appear as a consumer protection measure, its implications go well beyond marketing.

For sustainability consultants, ECGT is a signal of a broader shift: from sustainability as a narrative to sustainability as a verifiable, evidence-based discipline.

What is the ECGT Directive?

The ECGT Directive introduces stricter rules on how companies communicate environmental and social claims to consumers. Its core objective is straightforward: eliminate vague, misleading, or unsubstantiated “green” messaging.

In practice, this means that companies can no longer rely on general claims such as:

unless these claims are clearly defined, specific in scope, and supported by verifiable evidence.

The directive applies to business-to-consumer (B2C) companies operating in the EU, particularly those using sustainability claims in:

Importantly, ECGT does not operate in isolation. It forms part of a broader regulatory shift toward transparency, comparability, and accountability in sustainability communication.

Why the directive exists

The rationale behind ECGT is grounded in a well-documented issue: greenwashing.

Studies at EU level have shown that more than half of sustainability claims made by companies are either misleading, vague, or not sufficiently substantiated. This creates two problems.

First, it undermines consumer trust. If claims cannot be verified, they lose credibility, even when they are valid. Second, it distorts competition. Companies investing in genuine sustainability improvements are placed at a disadvantage compared to those relying on unverified claims.

The directive aims to address both issues by introducing a baseline requirement: claims must be evidence-based. This represents a shift in how sustainability is communicated. The emphasis moves away from broad narratives toward measurable, defensible statements.

What changes in practice

For companies, the implications of ECGT are operational rather than purely communicational.

Sustainability claims can no longer be treated as a marketing output developed in isolation. Instead, they must be supported by:

This requires alignment across multiple functions, including sustainability, legal, and communications. For example, a claim related to carbon neutrality now requires:

Without this level of detail, the claim may no longer be compliant. In practice, this means that sustainability teams need to be involved earlier in communication processes, and that claims must be validated before they are published.

Timeline and regulatory context

The ECGT Directive was formally adopted in 2024. EU Member States are required to transpose it into national law by March 2026, with full compliance expected by September 2026.

This timeline places ECGT ahead of the Green Claims Directive, which is intended to further define and operationalise the rules for environmental claims. While the Green Claims Directive is still subject to political discussion and delays, its direction is clear: it will introduce more detailed requirements around verification and substantiation.

In that sense, ECGT can be seen as a first step. It establishes the principle that claims must be evidence-based. The Green Claims Directive is expected to define how that evidence must be structured and verified.

For consultants, this creates a transitional period where expectations are increasing, even if detailed guidance is not yet fully standardised.

What this means for sustainability consultants

For sustainability consultants, ECGT does not introduce a new type of work, it changes the nature of existing work.

Traditionally, sustainability communication has often followed measurement. A company calculates its footprint, defines a narrative, and communicates its ambitions.

Under ECGT, this sequence becomes more tightly integrated. Communication cannot move ahead of data.

This has several implications.

First, there will be increased demand for robust carbon accounting and data systems. Claims must be backed by calculations that are consistent, transparent, and auditable.

Second, consultants will need to support clients not only in measurement, but also in claim validation. This includes reviewing whether claims are:

Third, there is a growing need to translate technical outputs into defensible communication. The challenge is no longer just to calculate emissions, but to ensure that any external statement derived from those calculations can withstand scrutiny.

Finally, ECGT reinforces the importance of methodological consistency over time. If claims are repeated or updated annually, the underlying assumptions and boundaries must remain comparable.

Conclusion

The ECGT Directive may not yet receive the same attention as CSRD or ESRS, but its implications are equally structural.

It signals a clear direction:

For sustainability consultants, the takeaway is straightforward. The focus should not only be on calculating emissions, but also on ensuring that these calculations can support clear, specific, and defensible claims.

Or put more simply:

if a claim cannot be measured, calculated, and explained—it should not be made.

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