Meroni v High Authority (1958): The Delegation of Powers Doctrine

Meroni v High Authority of the European Coal and Steel Community (Case 9/56) is a foundational judgment of the European Court of Justice delivered on 13 June 1958. The case established the Meroni doctrine on the delegation of powers, imposing strict limits on the ability of EU institutions to delegate decision-making powers to agencies and other bodies. The Meroni criteria — requiring that delegations be precisely defined, subject to judicial review, and limited to clearly defined executive powers — have shaped the development of EU agencies and continue to define the constitutional limits of agency powers.

Facts of the Case

The case arose under the European Coal and Steel Community (ECSC) Treaty. The High Authority (the predecessor of the Commission) had delegated powers to two private law organisations in Brussels: the Office Commun des Consommateurs de Ferraille (OCCF) and the Caisse de Péréquation des Ferrailles Importées. These bodies were established to manage the equalisation system for ferrous scrap, which aimed to equalise the price of imported and domestic scrap metal for ECSC steel producers.

The OCCF was empowered to levy contributions on steel undertakings, manage the equalisation fund, and make compensatory payments to undertakings that used imported scrap. Meroni, an Italian steel company, challenged the OCCF’s decisions on the ground that the High Authority could not lawfully delegate its powers to the OCCF. Meroni argued that the delegation violated the ECSC Treaty, which conferred decision-making powers on the High Authority and required those powers to be exercised under the supervision of the Court of Justice.

The Delegation Doctrine

The CJEU held that the delegation of powers was subject to strict limits. The Court distinguished between the delegation of clearly defined executive powers, which may be permissible, and the delegation of broad discretionary powers, which is not. Broad discretionary powers involve a wide margin of appreciation that may enable the delegate to pursue policies different from those intended by the delegating institution. The Court stated that such delegation would disturb the balance of powers established by the Treaty.

The Court established three key criteria for lawful delegation. First, the delegation must be precisely defined and expressly authorised by the delegating institution. The delegated powers must be clearly defined as to their scope, objectives, and limits. Second, the delegation must be subject to the same conditions of judicial review as would apply if the powers had been exercised by the delegating institution directly. The CJEU must be able to review the delegate’s exercise of the delegated powers. Third, the delegated powers must be executive in nature, not involving broad discretionary decision-making or political choices.

The Distinction Between Executive and Discretionary Powers

The Meroni doctrine draws a fundamental distinction between executive powers (which may be delegated) and discretionary powers (which may not). Executive powers involve the implementation of predetermined rules and policies, requiring technical or administrative judgment but not political choices. Discretionary powers involve the exercise of a wide margin of appreciation, requiring the balancing of competing policy objectives and the making of political choices.

The distinction has proved difficult to apply in practice. Most regulatory decisions involve some degree of discretion, and the boundary between executive and discretionary powers is inherently contestable. The CJEU has recognised this difficulty in subsequent case law, applying a more flexible approach to delegation in the context of the reformed EU institutional framework. The Meroni criteria have been progressively refined and, in some respects, relaxed, particularly following the entry into force of the Treaty of Lisbon.

The Consequences of the Judgment

The CJEU annulled the decisions of the OCCF because the delegation of powers was incompatible with the ECSC Treaty. The Court held that the OCCF exercised broad discretionary powers — determining the conditions of the equalisation system, setting contributions and payments, and managing the financial arrangements — which constituted a delegation of genuinely autonomous decision-making authority. The High Authority could not lawfully transfer such authority to a private body that was not subject to the same controls and safeguards as the High Authority itself.

The annulment had immediate practical consequences for the scrap equalisation system, requiring the High Authority to reassume direct responsibility for the management of the scheme. The judgment established the principle that the institutions of the Community must exercise their powers directly and could not insulate themselves from accountability by delegating discretionary powers to external bodies.

The Meroni Doctrine and EU Agencies

The Meroni doctrine has been the central legal constraint on the establishment and powers of EU agencies. The proliferation of EU agencies since the 1990s — including the European Medicines Agency, the European Chemicals Agency, the European Aviation Safety Agency, and the European Securities and Markets Authority — has required the CJEU to clarify the scope of permissible delegation.

The Court applied the Meroni doctrine in the ESMA Short Selling case (UK v Parliament and Council, Case C-270/12), upholding the powers conferred on the European Securities and Markets Authority to prohibit short selling in emergency circumstances. The Court distinguished Meroni on the ground that the ESMA powers were precisely defined, subject to strict conditions, and limited to specific emergency situations. The Court held that the powers conferred on ESMA did not involve broad discretion but were clearly delineated and subject to judicial review.

The ESMA Short Selling judgment significantly relaxed the Meroni doctrine, recognising that the institutional framework of the EU had evolved since 1958 and that agencies could exercise powers that involve some degree of decision-making autonomy. The Court emphasised the importance of the control mechanisms accompanying agency powers, including the right of appeal to the Commission and judicial review by the CJEU. The judgment has facilitated the further development of EU agencies and the conferral of regulatory powers on specialised bodies.

The Non-Delegation Principle in EU Constitutional Law

The Meroni doctrine reflects a fundamental principle of EU constitutional law: the non-delegation principle, which holds that the powers conferred by the Treaties on the EU institutions must be exercised by those institutions in accordance with the Treaty framework. The principle protects the institutional balance established by the Treaties and ensures that decision-making remains accountable through the mechanisms of democratic and judicial control provided by the Treaties.

The Treaty of Lisbon constitutionalised aspects of the Meroni doctrine through Articles 290 and 291 TFEU, which establish a framework for the delegation of legislative and implementing powers. Article 290 TFEU provides that the essential elements of an area must be reserved for the legislative act and cannot be delegated. Article 291 TFEU establishes the comitology system for implementing acts. The Treaty provisions codify the principle that delegations must be precisely defined and subject to appropriate controls.

The Meroni doctrine remains a vital element of EU constitutional law, defining the limits of delegation in the EU legal order. While the doctrine has been refined and in some respects relaxed to accommodate the development of EU agencies, its core principle — that discretionary powers involving political choices cannot be delegated — continues to constrain the institutional design of the EU and to ensure that the Union’s institutions remain accountable for the exercise of the powers conferred upon them by the Treaties.