CBAM Pulse
Published

Commission publishes verifier guidance and CBAM Registry access procedures

DG TAXUD's 24 August guidance explains CBAM verification and accreditation, while its 28 August Registry update adds step-by-step access and registration procedures for accredited verifiers, a quick guide, and an updated portal manual. The materials are operational and not legally binding; they do not change adopted CBAM rules, calculator assumptions, certificate prices, or the goods scope.

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What changed

  • The Commission published its first 141-page guidance dedicated to CBAM verification, verifier requirements, accreditation, surveillance, verification planning, evidence, site visits, and verification reports.
  • The Commission's 28 August procedure separates access into two stages: technical-user access through EU Access, handled by the Commission, followed by an O3CI application to become a registered accredited verifier, decided by the National Competent Authority of the verifier's accreditation country.
  • The procedure says accredited verifiers can use the O3CI portal from 1 September 2026 and describes the supporting documents for onboarding and registration.
  • The Registry workflow lets registered accredited verifiers connect with non-EU installation operators, review emissions data and supporting evidence, and issue verification reports.
  • The Commission expects verifiers to issue verification reports through the CBAM Registry from January 2027.
  • The guidance and procedures are operational and not legally binding; they do not change adopted CBAM rules or create a new statutory deadline.

Who may be affected

Prospective and accredited CBAM verifiers, National Accreditation Bodies, importers preparing to use actual emissions, non-EU installation operators, and advisers may want to use the guidance and Registry procedures when planning verification evidence, access, and registration.

Official sources

Summary prepared by CBAM Pulse from the official sources linked above. It is informational only and not legal, tax, or customs advice. In case of any difference, the official text prevails.