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Union Database · UDB · RED III

Union Database (UDB) compliance for biomethane

The Union Database (UDB) makes transaction-level submission mandatory for every sustainable biomethane molecule placed on the EU market. GooClear pre-formats your submissions in each Member State's schema, validates them before submission and reconciles the regulator-side response so a rejected entry never silently breaks your reporting.

Book a demoSee UDB submission flow
Built against the EU Implementing Regulation (EU) 2022/996 and Member State national portals.

Why operators are getting UDB wrong

The UDB sits above the national registries and the voluntary schemes — it is a transactional record of every sustainable molecule that changes hands in the EU. The most common failures we see in early submissions are format-related, not data-related.

  • Member-state schema variance

    Each Member State's national portal exposes UDB submission with slightly different schemas. We maintain them centrally so your team doesn't track changelogs.

  • Batch-identifier persistence

    Every UDB transaction needs a unique batch ID that survives every onward transfer. The platform issues them at first certified event and propagates them through the chain.

  • Pre-submission validation

    Run the regulator's validation rules before the submission window opens. Rejections happen on your dashboard, not on a 30-day-late regulator email.

  • Response reconciliation

    UDB acknowledgements (and rejections) are pulled back automatically and linked to the originating transaction so downstream reports stay consistent.

  • Voluntary-scheme alignment

    UDB submissions are derived from the same mass-balance ledger that drives your ISCC-EU / REDcert exports — no parallel data model.

  • Audit evidence

    Every UDB transaction is hash-anchored alongside the mass-balance event that produced it. The auditor verifies one chain, not two.

What the Union Database actually is

The Union Database (UDB) was introduced by the recast Renewable Energy Directive (RED III) and detailed in EU Implementing Regulation (EU) 2022/996 of 14 June 2022. It is a centralised, transaction-level record of sustainable biofuels, bioliquids and biomethane placed on the EU market. The intent is straightforward: every sustainability claim a producer or trader makes must be tied to a UDB transaction that another operator can verify. The implementation, in practice, is rolling out per-Member-State through 2025–2026.

For biomethane, the practical consequence is that no certified molecule can change hands inside the EU without a UDB record. Operators that miss UDB submission windows or submit malformed transactions face suspension of sustainability claims — which voids the GoO premium. Voluntary schemes (ISCC-EU, REDcert-EU, SURE) require UDB submission as part of compliant operation.

What GooClear does at UDB submission time

GooClear pre-formats every certified transaction against the UDB schema the relevant Member State has published. We track the schema changes centrally so your compliance team doesn't watch regulator changelogs. Before the submission window, the platform runs the regulator's validation rules against your data and surfaces any issues so you can resolve them on your dashboard, not on a rejection email three weeks later. On submission, the platform either pushes the transaction directly where the national portal supports machine submission, or generates the exact CSV the regulator expects for manual upload.

Post-submission, the platform pulls regulator acknowledgements and rejection responses back into the trade record. Rejections are flagged immediately with the failure reason and a resolution path. Acknowledgements close the loop on the audit trail.

Related solutions

FAQ — Union Database (UDB) biomethane

  • Is UDB submission mandatory yet?

    Implementation is rolling out per Member State through 2025–2026. Spain, Germany, the Netherlands and Italy have published their schemas; submission becomes mandatory as each national portal goes live. Voluntary schemes already require UDB submission for compliant operation.

  • Which Member States does GooClear support?

    We track the UDB schema for every Member State that has published one, with active integration for Spain, Germany, Italy, the Netherlands and France. Others activated on customer demand.

  • Do you submit on my behalf?

    We submit directly where the national portal supports machine submission. Where only manual upload is available, we generate the exact CSV the regulator expects. The decision is the operator's — we never push without explicit confirmation.

  • What happens if UDB rejects a submission?

    The rejection is pulled back into the trade record with the failure reason and a resolution path. The mass-balance event is flagged until UDB submission succeeds, so downstream sustainability claims can't be misissued.

  • How does this relate to my voluntary-scheme certification?

    UDB submission complements ISCC-EU, REDcert-EU and SURE — not replaces them. Voluntary schemes verify the methodology and audit; UDB makes the transactions verifiable in a central EU record.

  • Can I see a sample UDB submission?

    Yes. On a demo we can walk through a sample submission against the Spanish, German, Dutch or Italian schemas with one of your historical transactions.

Get UDB-ready before your Member State window opens

30 minutes with a biomethane specialist. We'll review where your Member State sits on UDB rollout and show a live submission against your own data.

Book a demoSee UDB submission flow

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