Regulatory data must be traceable, reviewable and supported by evidence.
WEETRA examines the documentary basis behind a regulatory figure, including the records, sources and calculations used to support it. The review identifies what does not hold. That may be an inconsistency, a missing critical document or a source that cannot support the position claimed. This work takes place before the file is finalised for reporting.
You may already have the CBAM figures. The harder question is whether the file can support them.
Reporting now runs on structured data, sources that can be traced, calculations that hold, and a documentary trail someone can actually review. WEETRA checks whether each material value ties back to a source, matches the documents, and, where the data allows, can be recomputed.
What WEETRA examines
Source Documents
Identification of the source documents that support the position being relied upon.
Declared, Extracted & Recalculated Values
Comparison of declared values with the values found in the record and, where possible, recalculated from the available inputs.
Critical Contradictions & Missing Critical Evidence
Identification of contradictions, missing evidence and source limitations that affect the file.
Evidence-Chain Integrity
Examination of whether the relevant evidence can be traced from source to the regulatory position it is used to support.
How a WEETRA review works
Scope and documentary corpus are agreed
The mandate identifies the goods, suppliers, installations, periods, questions and documentary population under review. Anything outside that boundary remains outside the conclusion.Relevant documents and regulatory positions are identified
WEETRA identifies the records relied upon for the positions in the file and the regulatory questions those records are expected to support. The objective is to understand what the file is actually asserting before testing whether the documentary basis holds together.Data are compared across sources
Quantities, installation identities, periods, supplier information, emissions data and supporting calculations are compared across the available records. Calculations are reproduced where the mandate, governing rule and necessary inputs allow it.Missing evidence, contradictions and source limitations are documented
A missing document is not treated as the same thing as a contradiction, and a source limitation is not presented as a factual inconsistency. Each issue is described according to what the evidence actually shows.Clarification and remediation take place where included
Where the mandate includes remediation, WEETRA identifies what requires clarification or correction. The client, supplier, adviser or relevant operational team produces the new material. WEETRA then examines the resulting versioned state.WEETRA issues its Determination and preserves the reviewed basis
The Determination records what the reviewed file supports at the agreed cut-off, including any limitations or blocking conditions. Where the engagement provides for it, supporting review records preserve the evidentiary basis needed to understand that conclusion later.Review depth depends on the question being asked.
CBAM Evidence Check
A focused first examination of the CBAM documents already available. It looks for visible gaps, inconsistencies and missing supplier evidence before a full review is considered.
CBAM Documentary Review
Structured review of what the existing CBAM documentary record currently supports.
CBAM Evidence Chain Review
Reconciles sources, facts, calculations and contradictions across the evidence chain, with remediation where included.
CBAM Forensic Evidence Review
Link-by-link reconstruction and adversarial examination for complex or high-consequence CBAM files.
The review option determines how far the examination goes. It never predetermines the conclusion.
CBAM documentary and evidentiary review
CBAM is WEETRA's first operational use case. WEETRA reviews the coherence and traceability of supporting information relating to goods, installations, embedded emissions, calculation inputs and documentary evidence.
When a CBAM file becomes difficult.
The problem is rarely the complete absence of data. More often, the documents available do not establish every relationship needed to support the position being relied upon. The situations below are illustrative, not automatic findings of failure.
Installation linkage
An emissions value is available, but the reviewed evidence does not clearly connect the relevant goods to the installation to which the value relates.
Period alignment
Supplier, production, commercial or emissions records refer to periods that do not align cleanly.
Precursor dependency
A precursor value is present, but its producer, installation, period or supporting evidence chain is incomplete.
Quantity reconciliation
Customs, commercial and emissions records use quantities that cannot immediately be reconciled.
Verification relationship
A verification report exists, but its relationship to the installation, period or emissions information being relied upon must still be established.
Fragmented evidence
The organisation holds the information, but it is dispersed across PDFs, spreadsheets, supplier messages and later corrections, making the reviewed state difficult to reconstruct.
How WEETRA records the outcome of a review.
The status records what the examined evidence supports, what remains unresolved and what may prevent the file from progressing. It is a WEETRA review conclusion within the agreed mandate, not a regulatory decision, certification or accredited verification opinion.
From a document set to a reviewable evidentiary state
The review record preserves the reviewed basis, unresolved conditions and the path to the final Determination so they can be reconstructed later.
Preserve what was reviewed, and why the conclusion was reached.
A later reader should be able to understand which documents were examined, which facts and source relationships were relied upon, which contradictions remained open, what was corrected and what the evidence supported at the relevant cut-off.
The report communicates the Determination. Where included in the mandate, the underlying package preserves the reviewed basis needed to understand and reconstruct that conclusion later.
What you receive from a WEETRA review
The report records the Determination. The supporting review record preserves the basis that led to it.
Where the engagement provides for a structured package, the reviewed record is prepared for later professional use. Internal teams, legal or customs advisers and other reviewers can see which sources were examined, what remained limited, what was remediated and why the Determination was reached. Accredited verifiers and other receiving professionals remain responsible for their own procedures and conclusions.
What structured evidentiary review can change.
A structured evidentiary review changes what an organisation knows about its own file, and how early it knows it. It separates supported positions, missing evidence, contradictions and remediation priorities before later professional scrutiny.
Supported claims
It can help an organisation identify which claims are actually supported by the current file, and which rest on material that has not been examined.
Missing against conflicting
It can help distinguish missing evidence from contradictory evidence, two conditions that call for different responses.
Targeted requests
It can help formulate targeted supplier requests instead of generic questionnaires that return generic answers.
Remediation priority
It can help an organisation understand which issue must be remediated, and why it matters to the position being relied upon.
Version preserved
It can help preserve which version of the file was actually reviewed, rather than reconstructing it later from uncontrolled emails and revisions.
Later scrutiny
It can help prepare structured information for an authorised declarant, an accredited verifier or later external scrutiny where relevant.
CBAM today.
Other evidence-intensive regimes later.
CBAM
Current operational use case for embedded emissions traceability.
Operational
Digital Product Passport
Research and planned extension around product-level identity, provenance and evidence relationships.
Research / planned extension
EUDR
Subsequent extension for origin, geolocation and due-diligence chains.
Planned extensionWhat the institute does
WEETRA brings regulatory analysis, file review and professional training back to the same question. What does the available evidence actually support?
Four roles in one regulatory chain
The Determination documents the reviewed evidentiary state. Statutory responsibilities remain with the actors to whom the law assigns them.
From the institute
Research papers, reference documents and regulatory analysis from the WEETRA institute.
From Compliance to Infrastructure
Why regulatory enforcement now evaluates data structures, not declarations. How CBAM, DPP and Customs Reform function as interconnected systems that evaluate data infrastructure rather than declarations.
January 2026Read overview → N°002Article 9 Compliance Framework
The evidentiary requirements associated with carbon price adjustment claims, and the documentary conditions under which such claims can be substantiated.
2026Read overview → N°003A Unified Evidentiary Infrastructure for EU Market Access
Across CBAM, DPP and customs regimes, the practical question is the same. Can the regulatory position be traced back to the documents, data and evidence that support it?
2026Read overview →