EPRS roundtable: The role of individuals in establishing the primacy of EU law in Costa v ENEL @EuroparlResearchService
EPRS roundtable: The role of individuals in establishing the primacy of EU law in Costa v ENEL  @EuroparlResearchService
Uploaded February 2025 | Updated September 2026, 7 hours ago
This online EPRS policy roundtable is dedicated to the European Court of Justice’s landmark ruling in Costa v ENEL (1964). In that decision, the ECJ proclaimed, for the first time, the principle of primacy of EU law, thereby acknowledging the coexistence of national law and Community law and providing for rules of conflict solving between the two legal orders. The event will focus on the origins and context of this landmark case, as well as the current significance of the principle of primacy in the EU legal order. The speakers will include Professor Amedeo Arena from the University of Naples, Professor Sacha Garben from the College of Europe in Bruges, María José Martínez Iglesias, former Director for Legislative Affairs in the Legal Service of the European Parliament, and Rafał Mańko, policy analyst in the Citizens' Policies Unit of the Members' Research Service. The roundtable will be moderated by Micaela Del Monte, head of the Citizens' Policies Unit.

Speakers include:
Jutta Schulze-Hollmén, Director for Resources, acting Director for the Members' Research Service, European Parliamentary Research Service (EPRS)
Amedeo Arena, Professor of University Federico II, Naples
Sacha Garben, Professor of College of Europe, Bruges
María José Martínez Iglesias, former Director for Legislative Affairs in the Legal Service of the European Parliament
Rafał Mańko, Policy analyst, Citizens' Policies Unit, EPRS
Moderation by Micaela Del Monte, Head of the Citizens’ Policies Unit, EPRS

EPRS publications:
Costa v Enel judgment: 60 years on - The making of the doctrine of primacy of EU law: https://www.europarl.europa.eu/thinktank/en/document/EPRS_BRI(2024)762361
60 years of Van Gend & Loos: Direct effect of EU law and a 'new legal order': https://www.europarl.europa.eu/thinktank/en/document/EPRS_BRI(2023)739326
60 years of Da Costa en Schaake: Asserting the binding authority of European Court of Justice case law: https://www.europarl.europa.eu/thinktank/en/document/EPRS_BRI(2023)747893
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EPRS roundtable: The role of individuals in establishing the primacy of EU law in Costa v ENEL

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