The European Commission has published an updated list of administering authorities assigned to shipping companies under the EU Emissions Trading System (EU ETS). The revisions are based on the latest data from the European Maritime Safety Agency’s Thetis-MRV platform, Lloyd’s Register noted on 29 December.

The revised assignments are set out in Implementing Decision 2025/2452 and will apply from 1 January 2026. Administering authorities (AAs) are designated at the member-state level and are responsible for overseeing emissions reporting and compliance obligations under the EU ETS.

The maritime sector has been included in the EU ETS since 1 January 2024. Shipping companies within scope are required to report annual emissions to a designated EU authority to meet compliance requirements.

Under the framework, the administering authority assigned to a shipping operator remains unchanged until the next official update, regardless of changes in the company’s registration or operational profile.

From 1 February 2026, the Commission will update the list every two years. The updates will reflect changes in company registration within the EU and add shipping companies that have newly entered the scope of EU MRV or the EU ETS.

From 1 February 2028, and every four years thereafter, the list will also be updated to reassign shipping firms not registered in an EU member state.

Lloyd’s Register has advised shipping companies and managers subject to the EU ETS to review the updated list to confirm that their administering authority has been assigned as expected.

Where the administering regulator has changed, Lloyd’s Register recommends that the responsible company make contact with the newly designated body. This includes confirming contractual mandates, notifying it of the vessels under its responsibility, and discussing requirements for ship monitoring plans or the opening of a Maritime Operator Holding Account.