Introduction
This essay examines whether Member State X can challenge the legality of the recently adopted Directive 2024/2831 on improving working conditions in platform work (the ‘Platform Work Directive’), adopted on 24 October 2024, and assesses the likelihood of success in such a challenge. The focus is on X’s contention that the Directive infringes its national constitution, specifically Article 17, which enshrines the judiciary’s duty to assess facts in employment relationships. This issue raises significant questions about the balance between EU law and national constitutional principles, as well as the mechanisms available for Member States to contest EU legislation. The essay first outlines the legal framework for challenging EU directives, then analyses the specific arguments put forward by X, and finally evaluates the potential success of such a challenge within the context of EU legal principles and case law. The discussion is situated as of 14 November 2024, shortly after the Directive’s adoption, and is informed by established EU law principles and precedents.
The Legal Framework for Challenging EU Directives
Under EU law, Member States have the right to challenge the legality of EU legislative acts, including directives, through an action for annulment under Article 263 of the Treaty on the Functioning of the European Union (TFEU). This provision allows Member States, as privileged applicants, to bring a case before the Court of Justice of the European Union (CJEU) without needing to prove a direct interest or standing (Craig and de Búrca, 2020). The action must be initiated within two months of the act’s publication or notification, meaning X has until approximately late December 2024 to file a challenge, assuming the Directive’s publication aligns closely with its adoption date.
Grounds for annulment under Article 263 TFEU include lack of competence, infringement of an essential procedural requirement, infringement of the Treaties or any rule of law relating to their application, or misuse of powers. X’s argument appears to primarily hinge on the third ground, alleging that the Directive infringes a fundamental national constitutional principle enshrined in Article 17. However, it is critical to note that while national constitutions are significant, EU law maintains supremacy over national law, including constitutional provisions, as established in the landmark case of Costa v ENEL (Case 6/64, 1964). This principle could pose a significant hurdle to X’s claims, as the CJEU consistently upholds the primacy of EU law to ensure uniform application across Member States (Barnard, 2019).
Member State X’s Argument: Infringement of National Constitutional Principles
Member State X contends that the Platform Work Directive unlawfully infringes on its national constitution by undermining Article 17, which mandates that the judiciary assess the facts in employment relationships. Although the precise content of the Directive is not fully detailed in this context, it is reasonable to infer that it may include mechanisms for determining the employment status of platform workers, potentially through administrative or EU-derived criteria. Such provisions could arguably conflict with X’s constitutional requirement for judicial determination, as they might limit the scope of national courts’ factual assessments or impose standardised EU definitions of employment status.
X’s concern reflects a broader tension between EU harmonisation efforts and national sovereignty, particularly in sensitive areas such as labour law and constitutional traditions. Indeed, labour law has historically been an area where Member States retain significant autonomy, as the Treaties limit EU competence to harmonisation rather than full uniform regulation (Article 153 TFEU). However, directives in this field, while binding as to the result to be achieved, leave discretion to Member States on the form and methods of implementation. Therefore, X might argue that the Directive oversteps EU competence by unduly restricting national judicial processes in a manner inconsistent with its constitutional framework.
Despite this, there are limitations to how far national constitutional arguments can succeed against EU law. The CJEU has repeatedly affirmed that while Member States’ constitutional identities are to be respected under Article 4(2) of the Treaty on European Union (TEU), this respect does not override the supremacy of EU law or justify non-compliance with EU obligations (Craig and de Búrca, 2020). Cases such as Melloni v Ministerio Fiscal (Case C-399/11, 2013) illustrate that even fundamental national constitutional rights must yield to EU law where the latter provides a consistent level of protection or where primacy demands it. Thus, X’s reliance on Article 17 might be undermined by the CJEU’s established jurisprudence.
Chances of Success for Member State X’s Challenge
Evaluating the likelihood of success for X’s challenge requires balancing the strength of its constitutional argument against the CJEU’s approach to supremacy and competence. On one hand, X could plausibly argue that the Directive infringes on an essential aspect of its national legal order, potentially invoking Article 4(2) TEU to assert the importance of its judiciary’s role in employment disputes. If X can demonstrate that the Directive’s provisions directly preclude national judicial assessment in a manner disproportionate to the EU’s objectives, there might be scope to claim a breach of the principle of proportionality or an overreach of EU competence under Article 5(4) TEU.
On the other hand, several factors suggest a low probability of success. First, the CJEU typically interprets EU competence in social policy broadly, particularly where measures aim to improve working conditions across the Union (Barnard, 2019). The Platform Work Directive, adopted under the legal basis of Article 153 TFEU, is likely to be viewed as a legitimate exercise of EU powers to promote social protection, even if it imposes constraints on national systems. Second, the principle of supremacy remains a cornerstone of EU law, and the CJEU is unlikely to allow a national constitutional provision, however fundamental, to derogate from an EU directive unless exceptional circumstances apply. Cases like Internationale Handelsgesellschaft (Case 11/70, 1970) affirm that EU law prevails even over national constitutional norms, provided the EU measure itself respects fundamental rights as enshrined in the EU Charter of Fundamental Rights.
Furthermore, X’s challenge might be weakened if the Directive allows for flexibility in implementation, enabling Member States to adapt its provisions to their national systems. Typically, directives afford such discretion, and the CJEU may expect X to reconcile Article 17 with the Directive’s requirements during transposition. Unless X can prove that the Directive’s text explicitly prohibits judicial assessment—a detail not available in this hypothetical scenario—its argument might be deemed premature or unfounded at the annulment stage.
Conclusion
In conclusion, Member State X can challenge the legality of the Platform Work Directive through an action for annulment under Article 263 TFEU, provided it acts within the procedural time limits. Its argument centres on the alleged infringement of Article 17 of its national constitution, which protects the judiciary’s role in assessing employment relationships. However, the chances of success appear limited due to the entrenched principle of EU law supremacy, the CJEU’s broad interpretation of EU competence in social policy, and the likelihood that the Directive allows for national discretion in implementation. While X may invoke respect for national identity under Article 4(2) TEU, established case law suggests that such claims rarely override EU obligations. The implications of this analysis underscore the ongoing tension between EU harmonisation and national sovereignty, particularly in areas as sensitive as labour law. Unless X can present compelling evidence of disproportionate interference or ultra vires action by the EU, its challenge is unlikely to succeed before the CJEU.
References
- Barnard, C. (2019) The Substantive Law of the EU: The Four Freedoms. 6th edn. Oxford University Press.
- Craig, P. and de Búrca, G. (2020) EU Law: Text, Cases, and Materials. 7th edn. Oxford University Press.
- European Union (2008) Treaty on the Functioning of the European Union. Official Journal of the European Union.
- European Union (2012) Treaty on European Union. Official Journal of the European Union.
