The European Transaction Log (EUTL) public website continuously publishes information about all participants in the EU and data such as transfer history, free allocation, verified emissions, and compliance status surrender history. What information is public is regulated in the registry regulation.

The EUTL is a separate function from the Union Registry in place to monitor the integrity of the Union Registry and records, verifies and approves all transfers to and from accounts. The check ensures that all transfers from one account to another are in accordance with the rules of the trading system (and the Kyoto Protocol rules in cases where entities originating in the Kyoto Protocol are involved).

Furthermore, EUTL checks and records all data for units entering or leaving the Union Registry. This may apply to Kyoto units such as CER or ERU which can move in and out of the Union Registry.


Every day, all data in the EUTL are checked and compared with corresponding data in the Union Registry to ensure consistency and integrity. The process is called reconciliation. Any inconsistencies are reported immediately and the affected accounts or entities can be blocked until the inconsistency is investigated.