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Every date, and its source.

Editorial rule for this page: no date is listed without an official reference, and no threshold figure is listed without a text behind it. The page is reviewed monthly and the review date is shown above.

CBAM accreditation · assessment under way · ACCREDIA DC26PRT0296 — status record

Reviewed 01 September 2026

The dates that control the first cycle.

  • 1 January 2026Declarants and operators

    The definitive CBAM regime applies

    Authorised CBAM declarant status and certificate obligations begin, with a single mass threshold of 50 tonnes of CBAM goods per importer per year.

  • April 2026National accreditation bodies

    CBAM accreditation of verifiers begins

    The national accreditation bodies of the EU and EEA states begin granting CBAM accreditation. They are the only bodies competent to grant it. A verification company established in an EU or EEA country applies to the national body of its own country; a company established outside the EU may apply to any national body that offers the service.

  • 14 August 2026Non-EU installation operators

    Ten implementation guidance documents published

    Four general guides plus six sector guides covering production processes, value chains and monitoring and reporting considerations.

  • 24 August 2026Verifiers and accreditation bodies

    Verification and accreditation guidance published

    Requirements for verification of emissions reports of operators of installations producing CBAM goods outside the EU, plus the Registry access procedure.

  • September 2026Accredited verifiers and operators

    First accreditations, and the first verifications

    The Commission expects the first CBAM verifiers to be accredited around this point, and will publish a list of accredited verifiers. Accredited verifiers register in the CBAM Registry and verification of 2026 data begins.

  • From 1 September 2026Accredited verifiers

    CBAM Registry registration opens

    A verifier may obtain Registry access from this date, and must register within two months of receiving CBAM accreditation.

  • From January 2027Accredited verifiers and declarants

    Verification reports issued through the CBAM Registry

    Accredited verifiers issue verification reports in the Registry.

  • February 2027CBAM declarants

    Purchase of CBAM certificates opens

    Authorised CBAM declarants may begin purchasing CBAM certificates against their 2026 imports.

  • 30 September 2027Authorised CBAM declarants

    First annual declaration for 2026 imports

    The first annual CBAM declaration and the associated certificate surrender fall due.

Editorial rule: guidance explains implementation; the applicable EU legislation and its official amendments remain controlling. Guidance documents do not replace the text published in the Official Journal of the European Union.
What this means for a manufacturer

Working backwards from September 2027.

The declaration deadline is the visible date, but it is not the one that decides your outcome. If actual values are to be used for 2026 imports, the monitoring arrangements had to be in place during 2026 — data cannot be reconstructed afterwards from a calendar that did not exist. The practical question in late 2026 is not “when is the deadline”, it is “does the 2026 data we already hold support an actual value, and can it be traced”.

Describe the claim — not the service.

Tell us what must be relied on, who will rely on it and by what date. We will confirm the correct programme, evidence requirement and responsible entity — or tell you it is outside our scope.