Turning Tides: The Landmark Decision in the Achmea Case – The Ecosystem of EU Law Means the End of Intra-EU BITs - European Investment Law and Arbitration Review View Turning Tides: The Landmark Decision in the Achmea Case – The Ecosystem of EU Law Means the End of Intra-EU BITs by - European Investment Law and Arbitration Review Turning Tides: The Landmark Decision in the Achmea Case – The Ecosystem of EU Law Means the End of Intra-EU BITs 3 1

The Court of Justice of the EU (CJEU) has delivered a landmark decision by ruling that Article 8 of the bit between the Netherlands and the Slovak Republic, providing for investor-state arbitration, is not compatible with EU law. The implications of this ruling go beyond this particular case, which can be considered a landmark decision for two reasons. First of all, the CJEU placed particular emphasis on the ecosystem of EU law, as enshrined in Articles 344 and 267 of the Treaty on the Functioning of the European Union (TFEU). Moreover, with this ruling, the CJEU has finally put an end to the legal uncertainty that has arisen regarding the place of so-called intra-EU BITs in the legal order of the EU. This case note provides the background to the case and a deeper analysis of the judgement following the three-step approach adopted by the CJEU, and will look ahead towards unaddressed questions that might be raised as a consequence of this ruling.

European Investment Law and Arbitration Review