EU green-claims fines take effect before verification infrastructure exists
The ISO net-zero draft failed its member vote after a 12-week consultation drew nearly 5,000 comments, and ESMA will not supervise ESG rating providers until 2027.
European asset managers are now under an enforceable generic green-claims ban, with fines reaching 4 percent of annual revenue, while the draft ISO net-zero standard that might have given them a common verification benchmark has just failed its member vote after a 12-week consultation drew nearly 5,000 comments. The draft cannot move to final publication in its current form.
The fine is live; the verifier is not. A final ISO standard could have given funds a common reference for what a credible net-zero claim requires, and that reference is now absent, with the volume of consultation comments suggesting the definitions were far from settled.
The most concrete missing piece is the net-zero standard itself, because a management framework cannot substitute for assurance against a specific emissions promise, and without a published verification standard a fund cannot show a regulator or client which methodology made a future climate target credible.
ESMA's timeline widens the gap. The EU markets regulator will begin supervising ESG rating providers in 2027, processing rating applications and broadening oversight of green bond reviewers, tape providers and benchmark administrators, so until then asset managers that rely on ratings to support climate labels are operating without the EU's ESG rating supervisor.
An ESG rating is not the same as a claim verifier, but the two sit close enough in a marketing chain that delayed supervision matters, because a fund can cite a rating in a sustainability pitch while the data behind that rating will not face EU supervision until 2027.
ISO and UNDP released a new document on Sept. 28, during ISO's annual meeting, but it does not close the gap. The 53001 framework is a management standard for corporate SDG commitments, covering choosing goals, setting indicators and governing progress and building on 2024 guidelines; it is not a net-zero verification standard, and a process for managing commitments is not an assurance regime for advertised climate claims.
A private response to the gap
Glass Lewis and Clarity AI announced a merger under which the proxy advisor and the sustainability data platform will integrate their products in phases, base a sustainability, data and AI center of excellence in Madrid, and keep separate brands until 2027.
The 2027 marker in their integration plan is the same year ESMA starts supervising ESG rating providers, a shared horizon that is likely more than coincidence because it gives clients a private bridge across exactly the period in which the public supervisor is absent. The merger, however, does not create a regulated verifier; it creates scale.
The Glass Lewis–Clarity AI deal shows how quickly the private layer is consolidating around climate-related data and stewardship: a proxy advisor brings voting and governance context, a sustainability data platform brings company-level environmental and social information, and combined they can supply much of what an asset manager needs to assemble a defensible claim, but without a legal standard defining what defensible means.
The EU directive bars offset-based carbon-neutral labels outright, so funds that advertised carbon neutrality by purchasing offsets now face the clearest immediate legal exposure because the claim form is banned, not merely unverified.
For advertised future climate targets, independent verification is required, and that is where the absent standard hurts most, because there is no ISO reference for how to verify a promise about emissions later. Asset managers can choose a private assurer, but no shared benchmark says what evidence is sufficient.
With generic environmental claims banned, future targets requiring independent verification, and the ISO net-zero draft just failed, asset managers are likely to move toward narrower, measurable statements and away from labels that cannot be checked against a published methodology in the near term.
That is not a stable equilibrium. The private data and proxy layer is scaling through deals such as Glass Lewis–Clarity AI, but scale without a supervising standard does not solve the legal question, and an asset manager today cannot point to the new management standard, a final ISO net-zero standard, or an active ESMA supervisory regime for ESG rating providers.
What a claim requires now
Between now and 2027, every climate claim on a fund document carries a compliance decision that the EU has not yet given firms the tools to settle; pulling claims is expensive commercially, keeping them is risky legally, and buying more data may narrow the uncertainty without eliminating it.
ESMA will eventually process rating applications and broaden oversight, so the 2027 start is not forever. But the enforcement gap is not merely a waiting period; it is a window in which the private market is consolidating the inputs that future verification will rely on, and the companies that define the data today may be too integrated to challenge when supervision arrives.
Glass Lewis and Clarity AI keeping separate brands until 2027 suggests a deliberate staging: integrate the back end now, preserve client continuity later, and be ready when the supervisor arrives, a rational response to a regulatory void that still leaves the verifier question unanswered.
The ISO votes may produce another draft, because a 12-week consultation that draws nearly 5,000 comments does not necessarily kill the project; it blocks final publication in the current form, and each month of delay is a month in which the enforceable directive has no matching standard. That is the cost the market will carry.
The next test is whether ISO's committee can produce a revised draft before ESMA's 2027 start, and whether any asset manager will be willing to market a net-zero label before it does.
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