EU Court Dismisses Poland’s Challenge To CBAM

The Court of Justice of the European Union dismissed Poland's challenge to the Carbon Border Adjustment Mechanism (CBAM) on 12 November 2026. In Case C-512/23, Poland sought annulment of Regulation (EU) 2023/956, which establishes carbon pricing for certain goods imported into the EU.

The judgment rejects that challenge. It does not itself introduce a new product scope or compliance timetable for importers.

Dispute Over The Legal Basis

Poland argued that the regulation was essentially fiscal and should have been adopted under Article 192(2)(a) of the Treaty on the Functioning of the European Union. That procedure requires unanimity in the Council.

The Court upheld the use of Article 192(1), the environmental-policy legal basis. The Court's announcement explains that the ordinary legislative procedure permits Parliament and the Council to act together, with the Council voting by qualified majority.

Environmental Purpose

In paragraphs 69–71, the Court found that the regulation's objective was environmental protection. Revenue from the mechanism was a consequence of its introduction, rather than its objective. Even if the regulation pursued both environmental and budgetary purposes, the environmental purpose would predominate.

The judgment also describes CBAM as complementing the EU Emissions Trading System by applying equivalent rules to covered imports. The Court assessed that relationship when examining the regulation's context and purpose.

Outcome Of The Proceedings

The Court dismissed Poland's sole plea and the action. It ordered Poland to bear its own costs and those incurred by Parliament and the Council. The Commission, which intervened, must bear its own costs.