The European Commission has published new operational resources for CBAM verifiers, detailing how accreditation, registry access and information exchange will support verification of emissions data from installations outside the EU.
Published on 28 September, the material brings together verification and accreditation guidance, access procedures, manuals and training videos for the O3CI portal. The resources set out procedures intended to connect installation-level information with the compliance processes used by EU importers.
The guidance covers how verifiers obtain registry access and describes the respective responsibilities of accreditation bodies, the European Commission and national competent authorities. It also addresses technical user access and collaboration requests involving third-country installation operators.
Registry access becomes part of verification workflow
The operational material places information management alongside the technical assessment of emissions evidence. Verification therefore involves not only preparing an emissions report but also ensuring that relevant information can be exchanged through the designated systems.
For exporters and installation operators, responsibilities around portal access and verification requests need to be clearly assigned. Companies and their advisers must establish who manages access, who responds to verifier requests and who is authorised to make changes to submitted information.
Where those responsibilities are unclear, verification work can face delays even when the underlying emissions data is available.
Accreditation arrangements cover 2026 imports
The Commission’s resources also describe accreditation and surveillance arrangements for bodies responsible for checking emissions reports from installations producing goods imported into the EU from 1 January 2026.
The publication provides operational guidance on the existing CBAM assurance process rather than changing the mechanism’s product coverage.
For producers supplying the EU market, the material provides a defined route connecting plant records, installation information and accredited verification, while setting out how verifiers, accreditation bodies, authorities and third-country installation operators interact through the registry system.
