This reference page maps CBAM preparation across goods, production installations, emissions calculations, verification, and import declarations. It is a record-building aid for exporters and EU importers; the applicable scope still depends on the CN code, import scenario, and responsible party. A checklist is not a declaration or a regulatory conclusion.

1. Map responsibilities before collecting files

CBAM declaration responsibilities generally sit with the EU importer or, in specified situations, an indirect customs representative. Operators of non-EU installations monitor and calculate emissions under the applicable methodology and provide information to the declarant. Use a responsibility matrix connecting:

  • Importer or indirect customs representative: confirm scope, manage authorised declarant matters, and handle declarations and certificate-related obligations.
  • Installation operator: provide installation, process, activity, energy, and emissions records supporting the calculation.
  • Verifier: where actual emissions data are used and verification is required, perform an independent verification within the applicable framework.
  • Evidence owner: index goods, installations, reporting periods, calculations, source files, versions, and changes.

2. Define the smallest traceable record

Do not treat a generic supplier statement as evidence for every SKU. At minimum, maintain:

  • Goods: description, CN code, quantity, unit, country of origin, import date, and the related order or customs record.
  • Installation: operator, name and address, production process, products and precursors, reporting period, and contact point.
  • Emissions: direct emissions, applicable indirect emissions, activity data, energy sources, emission factors, calculation method, and whether actual or default values were used.
  • Evidence: meter records, energy invoices, input and output records, process descriptions, calculations, version numbers, review notes, and source documents.

Each goods record should link back to an installation and reporting period. Each installation record should explain how emissions are attributed to the relevant goods. For complex supply chains, retain precursor and process relationships rather than only a finished-product name.

3. Separate actual values, default values, and verification

The Regulation requires embedded emissions to be calculated using the applicable methods. Depending on the applicable rules, a declarant may use actual values or Commission default values. When actual emissions are used, data from the installation may need verification by an independent verifier operating under the relevant framework. Record the selected route and its rationale for each data set.

A carbon report by itself does not establish that CBAM data are usable. Check the boundary against the goods and installation, the reporting period against the declaration, units and conversions, treatment of direct and indirect emissions, and the traceability of calculations to source records. Verification, authorisation, and declaration are separate steps.

4. Suggested evidence-pack structure

  1. Scope decision: CN code, goods description, quantity, origin, importer, and the basis for the scope assessment.
  2. Installation and process: installation list, process flow, goods and precursor relationships, and data sources.
  3. Emissions calculation: methodology version, activity data, factors, actual or default values, allocation logic, and review.
  4. Supporting evidence: meters, invoices, purchasing and production records, measurements, internal review, and change history.
  5. Communication trail: files shared with the importer, questions, responses, revision dates, owners, and open points.

5. Keep the boundaries clear

  • CBAM data preparation is not a substitute for PPWR, EUDR, product-safety, or platform green-claim assessments.
  • An environmental product claim does not replace CBAM calculation, verification, or declaration records.
  • Commission default values, implementing rules, and templates can change; record the version, publication date, and access date.
  • Supplier data can be a source, but the entity, installation, goods, period, and calculation boundary still need to be reconciled.

6. Final review questions

Before sharing the pack, confirm: Is the CN code and responsible party documented? Is each good linked to an installation and reporting period? Can the method, units, factors, and version of the emissions calculation be traced? Is the actual/default route recorded? Where verification is required, does the verification scope match? Do questions and revisions have an owner and supporting file?

Sources and scope note

Key references are Regulation (EU) 2023/956, including provisions on scope, embedded-emissions calculation, verification, and reporting; the European Commission pages on the CBAM definitive regime, CBAM verification, and legislation and guidance. Official materials, covered goods, and implementing details may change. This page supports evidence organisation and does not replace case-specific advice from an importer, competent authority, or professional adviser.

Greenark (Shenzhen) Certification Co., Ltd. can help organise records across goods, installations, emissions, and evidence, without guaranteeing a declaration, verification, or regulatory outcome.