The Flexibility Clause (Article 352 TFEU)

Article 352 TFEU, commonly known as the flexibility clause, empowers the Council, acting unanimously on a proposal from the Commission with the consent of the European Parliament, to adopt appropriate measures where action by the Union should prove necessary within the framework of the policies defined by the Treaties to attain one of the objectives set out in the Treaties, and the Treaties have not provided the necessary powers. The clause is a residual power that enables the Union to act beyond its expressly conferred competences when necessary to achieve Treaty objectives, subject to stringent procedural and substantive safeguards. Its origins lie in Article 235 of the EEC Treaty, which the institutions used extensively to extend Community competence into areas not expressly provided for by the original Treaty of Rome.

Scope and Operation

Article 352 TFEU contains several limitations on its scope. First, it requires that action be necessary within the framework of the policies defined by the Treaties to attain a Treaty objective. The provision does not authorise the Union to depart from the Treaty framework or to pursue objectives beyond those set out in the Treaties. Second, the Treaties must not have provided the necessary powers elsewhere: Article 352 is a residual power, available only where no other Treaty provision confers the necessary competence. Third, Article 352(3) excludes harmonisation of Member State laws where the Treaties exclude such harmonisation, preserving the limits on EU action in supporting competences.

Article 352(4) expressly excludes the clause from application to the Common Foreign and Security Policy, reflecting the intergovernmental character of CFSP and the limitation of EU competence in foreign policy. The clause also cannot be used to circumvent the principle of conferral or to adopt measures that would require Treaty amendment. The CJEU held in Opinion 2/94 (Accession to the ECHR) that Article 352 could not be used to accede to the European Convention on Human Rights because such accession would involve a fundamental change to the Community’s constitutional structure, requiring express Treaty authorisation rather than reliance on a residual power.

Procedure

The procedure for adopting measures under Article 352 requires unanimity in the Council on a proposal from the Commission, with the consent of the European Parliament. National parliaments must be notified of proposals under Article 352 and may object on subsidiarity grounds under Protocol No. 2. Unanimity gives each Member State a veto, ensuring that no Member State can be bound by measures adopted under the flexibility clause against its will. The requirement of Parliament consent, introduced by the Treaty of Lisbon, enhances democratic legitimacy by requiring the approval of the directly elected institution.

The Commission has a gatekeeping role: only the Commission may propose measures under Article 352, and it has exercised this power cautiously since the Treaty of Lisbon imposed tighter constraints on the clause’s use. The Council may not amend the Commission’s proposal except by unanimity, preserving the Commission’s role as the initiator of EU legislation. The European Parliament’s consent must be given by a majority of the votes cast, providing democratic control over exercises of the residual power.

The ERTA Doctrine and Implied External Competence

The flexibility clause is conceptually related to the doctrine of implied powers, which was developed by the CJEU to recognise competences not expressly conferred by the Treaties. In Commission v Council (ERTA) (Case 22/70), the Court held that the Community’s authority to enter into international agreements arises not only from express Treaty provisions but also by implication from internal legislative competence where the Union has exercised its internal powers. The ERTA doctrine establishes that the existence of internal competence implies external competence to the extent necessary to achieve Treaty objectives, particularly where the external agreement affects internal rules.

The ERTA doctrine provides an alternative to the flexibility clause for implied external action. Where the Union has exercised internal competence in a given area, the external power flows automatically from the internal competence, without need to resort to Article 352. The doctrine has been extended to cover exclusive external competence where internal rules are affected (Opinion 1/76), shared external competence where the internal competence exists but has not been fully exercised (Opinion 2/91), and exclusive external competence where the common rules may be affected by international commitments (Opinion 1/03 on the Lugano Convention).

Limits on the Flexibility Clause

The flexibility clause is subject to substantive as well as procedural limits. Article 352(1) requires that measures be adopted within the framework of the policies defined by the Treaties, meaning that the clause cannot be used to create entirely new policies or to extend the Union’s competence into areas not related to Treaty objectives. The requirement is judicially enforceable, and the CJEU has indicated that it will review the legality of measures adopted under Article 352.

The Treaty of Lisbon introduced additional limits. Article 352(3) provides that measures adopted under the clause may not entail harmonisation of Member State laws where the Treaties exclude such harmonisation. This limit is particularly relevant in areas of supporting competence, such as education, culture, and health, where the Treaties expressly exclude harmonisation. Article 352(4) excludes application to the CFSP, preserving the special procedural rules governing foreign policy.

Historical Use

The flexibility clause was used extensively before the Treaty of Lisbon, particularly for environmental policy (before the Single European Act provided an express environmental legal basis), regional policy, research and development, and development cooperation. The clause’s broad interpretation in earlier decades reflected the permissive approach of the institutions to Community competence expansion. The Treaty of Lisbon’s introduction of an express catalogue of competences, combined with the tightening of Article 352, has reduced reliance on the clause.

The clause has been used for significant legislative measures, including the establishment of the European Monitoring Centre for Drugs and Drug Addiction, the Community Action Programme for Education (Erasmus/Socrates), aspects of EU energy policy before the Lisbon Treaty provided an express energy competence, and measures relating to public health capacity-building. The clause’s residual character ensures that it remains available for unforeseen circumstances where Treaty objectives require action but no specific legal basis exists.

Judicial Review

The CJEU exercises judicial review over the use of Article 352. In ERTA, the Court confirmed that the clause cannot be used to achieve objectives outside the Treaty framework. In Opinion 2/94, the Court held that Article 352 could not be used to achieve fundamental constitutional changes requiring Treaty amendment. The Court has also held that the clause cannot be used to circumvent the legislative procedures and voting rules provided for specific policy areas, preserving the integrity of the Treaty’s allocation of competences and procedures. The clause remains a carefully circumscribed safety net rather than an open-ended source of legislative power.