CBAM supplier data missing? Check the O3CI handoff

Official sources checked 25 September 2026

Free handoff checker

No login, uploads or personal information. Answers stay in this page; nothing is submitted to EcoBack or the EU.

Your coordination checklist

Choose a status for each item, then run the check.

Why start here?

The Commission describes O3CI as a route for non-EU operators to share installation and emissions information with declarants. It specifically notes that declarants must communicate their EORI to the supplier outside the registry. Check that handoff before resending files.

Official references

A practical handoff

Choose one product family and one installation to troubleshoot first.
Record the problem, owner and next step for each unanswered item.
Keep sensitive supporting documents in an agreed secure channel, not a public group.

For teams already considering the O3CI sharing route. This is not an assessment of whether your goods fall within CBAM, whether an exemption applies, or whether O3CI registration is mandatory for your business.

Common questions

Does this tool submit anything to the EU?

No. It only prepares a local coordination checklist. Use the official registry for official actions.

Is shared data automatically verified?

No. Data sharing and independent emissions verification are different steps. Consult the official verification guidance.

Can I buy the €299 evidence pack here?

Not yet. €299 is an indicative pilot price, not an active checkout. The separate EcoBack storage membership is not this evidence pack.

Before paying for help

Use the free checklist first. A proposed evidence-pack pilot covers one product family, a bilingual document index and supplier-request templates. Scope, tax treatment and delivery terms must be agreed before any charge; checkout is not connected.

The EcoBack storage membership is a separate product and does not buy this evidence service.

Free handoff checker

Official references

Independent preparation aid. Not an EU service, legal advice, certification, verification or a compliance decision.