PRACTICE NOTES
Scope of supremacy
As first composed, the EU Treaties lacked any clause expressly assuring the supremacy, otherwise termed the primacy, of EU law. In practice, the Court of Justice’s deployment of the supremacy principle has largely secured the uniform application of EU law throughout the Member States; absent this doctrine, EU law would lose its integrative force. Supremacy is therefore a judicial creation, and the Court of Justice’s steadfast adherence to it is the clearest explanation for the sophisticated and profound integration achieved between the Member States. Through a succession of seminal rulings, the Court of Justice, alongside national courts, has shaped and entrenched the doctrine, seeking to delineate how European law relates to national law, including national constitutional law. Equally, one must recognise the substantive role of national courts in sustaining supremacy by making EU Treaty rights effective for citizens within the
EU Law