Precedence of community law meaning

In practice, this describes the rule that, if EU law and national law conflict, the court applies EU law and disapplies the inconsistent domestic measure. Often called the supremacy or primacy of EU law, it derives from CJEU case law (including Costa v ENEL and Simmenthal) and is reflected in domestic jurisprudence. United Kingdom: Before withdrawal, UK courts, relying on the European Communities Act 1972 and cases such as Factortame, disapplied conflicting Acts. Under the European Union (Withdrawal) Act 2018, general supremacy no longer applies, save as preserved. It continues for rights under the Withdrawal Agreement, including the Ireland/Northern Ireland Protocol/Windsor Framework (EUWA 2018, s7A), and for EU rules that still apply in Northern Ireland. Supremacy formerly attached to retained EU law in relation to pre‑2021 legislation, but the Retained EU Law (Revocation and Reform) Act 2023 has largely removed that from 1 January 2024, subject to savings. Usage is otherwise consistent across England & Wales and Scotland. Ireland: As an EU Member State, supremacy/primacy applies fully. Irish courts must disapply inconsistent national measures (Constitution, Art 29; European Communities Act 1972 (Ireland)). Practically, lawyers invoke this to seek disapplication or conforming interpretation of domestic provisions.