CBAM Pre-Verification: Changing the Narrative

May 21, 2026

CBAM pre-verification is often treated as an optional, voluntarily exercise, or worse, as an unnecessary expense. That narrative is wrong – and potentially costly.

CBAM pre-verification for risk management

The CBAM transitional period and quarterly reporting served two clear purposes:

To support data collection for the European Commission
To act as a preparatory phase for importers and non-EU producers

Was it taken seriously by operators supplying data to importers? In practice, not always.

Quarterly reports relied heavily on default values. Even when defaults were replaced by so-called “real values”, these embedded emissions figures were typically unsupported. They became claimed values, accepted on trust, without any mechanism to confirm whether they were complete, accurate or aligned with CBAM methodology.

However, we are no longer operating in a methodological vacuum. Today, we have:

Published default values
Benchmarks
Clear calculation rules
Defined verification process

Importers must ask, “Are my suppliers’ emissions data verifiable under CBAM?”

This is exactly where CBAM pre-verification becomes critical. Pre-verification is the only way to answer that question before 2027 CBAM liability materializes.

Ensuring credibility

CBAM pre-verification tests whether:

Emissions have been calculated in line with CBAM rules, not other frameworks
All relevant sources have been captured
Allocation rules have been applied correctly
Assumptions are documented and defensible

Additionally, it determines whether there is a robust monitoring plan to support the data. Without a monitoring plan, there is no verification. And without verification, “real values” remain unsubstantiated claims. Today, the biggest CBAM oversight mechanism is indeed called “monitoring plan”.

Many importers are confident that they now have visibility over the embedded emissions of the goods they import. Their confidence might be misplaced as they are confusing visibility with credibility. Numbers without a monitoring plan, traceable evidence and CBAM-aligned methodologies do not reduce risk, they merely defer it.

Choosing a CBAM pre-verification provider

Pre-verification is the only solution to manage CBAM risks. At the same time, it is crucial to understand that pre-verification is not mandatory, has no legal standing and does not replace third-party accredited verification. Any credible organization offering CBAM pre-verification will make this absolutely clear.

That is why choosing who carries out pre verification is critical. Before assigning a provider, companies should ask:

Do they have a proven track record in EU ETS verification in my sector?
CBAM is ETS derived. Sector expertise is non negotiable.
Do they explicitly confirm that pre verification has no legal validity for CBAM compliance?
If this is ambiguous, reconsider.
Do they require a fully developed monitoring plan before starting?
Without it, the exercise is meaningless.
Does this include a review of SEFA methodologies, input benchmark and calculations?
If these are not assessed, you are missing a review of a mandatory CBAM verification process component.
Would an importer be equally reassured if this work were carried out by someone without ETS background in one or two days?
If not, the decision is clear.

As the CBAM ecosystem consolidates, boundaries between platforms, consultants, and verifiers are becoming increasingly blurred. This calls for caution: choose a reputable platform or consultant to support the development of a monitoring plan, choose reputable advisors for strategic decision making and choose ETS accredited verifiers for pre-verification. Compare proposals, ask precise questions and challenge assumptions.

Why choose SGS to navigate CBAM with confidence?

We are a world leading provider of greenhouse gas (GHG) verification, with decades of emissions trading system (ETS) experience across all sectors. Our global footprint allows us to support suppliers and operations worldwide. As a trusted, independent verifier, with strict quality and integrity standards, we offer a comprehensive set of services that includes practical operational guidance based on real world challenges.

Our CBAM compliance services