The Treaty of Amsterdam (1997)

The Treaty of Amsterdam, signed on 2 October 1997 and entering into force on 1 May 1999, was the third major revision of the EU’s founding Treaties. Amsterdam consolidated earlier reforms, introduced new policy competences, strengthened provisions on fundamental rights and social policy, and prepared the Union for enlargement. While less dramatic than the Maastricht Treaty, Amsterdam made significant contributions to the EU’s constitutional development, particularly through the incorporation of the Schengen acquis, the communitarisation of aspects of justice and home affairs, and the reinforcement of flexibility mechanisms.

The Social Protocol and Employment

The Treaty of Amsterdam incorporated the Social Protocol and the Agreement on Social Policy into the EC Treaty. The Social Protocol had been annexed to the Maastricht Treaty as an opt-out for the United Kingdom, allowing the other 11 Member States to adopt social legislation using the Community institutions. The Amsterdam Treaty incorporated the Protocol into the mainstream Treaty framework, ending the UK’s opt-out (the newly elected Labour government having agreed to join the social chapter).

The Treaty introduced a new Employment Title (Articles 125–130 EC), establishing employment coordination as a Community objective. The Title required Member States to coordinate their employment policies through the European Employment Strategy, based on Employment Guidelines adopted by the Council. The Luxembourg Process, launched in 1997, implemented the strategy through annual guidelines, national action plans, and peer review. The employment provisions reflected the recognition that high unemployment was a matter of common concern requiring coordinated action.

The Area of Freedom, Security and Justice

The Amsterdam Treaty created the Area of Freedom, Security and Justice (AFSJ) as a new objective of the Union. The Treaty communitarised aspects of justice and home affairs, transferring certain matters from the Third Pillar to the First Pillar. Visas, asylum, immigration, and judicial cooperation in civil matters were moved to the EC Treaty, subject to qualified majority voting and the co-decision procedure after a five-year transitional period. Police and judicial cooperation in criminal matters remained in the new Third Pillar, governed by intergovernmental procedures.

The Treaty incorporated the Schengen acquis into the EU legal framework. The Schengen Agreement (1985) and Schengen Convention (1990) had been concluded outside the EU framework by a subset of Member States. The Amsterdam Treaty integrated Schengen into the EU Treaties through a Protocol that provided for the participation of all Member States except the UK and Ireland (which obtained opt-outs) and associated Norway and Iceland. The Schengen acquis was subsequently developed through EU legislative procedures.

The Treaty also established the High Representative for the Common Foreign and Security Policy, a new position intended to give CFSP a more visible and coherent face. The High Representative, appointed by the European Council with the agreement of the Commission President, assisted the Council in CFSP matters and contributed to the formulation, preparation, and implementation of policy decisions. The first High Representative was Javier Solana, who served from 1999 to 2009.

Flexibility and Enhanced Cooperation

The Amsterdam Treaty introduced the concept of closer cooperation (later renamed enhanced cooperation), allowing a group of Member States to use the EU institutions to adopt legislation among themselves where Community-wide agreement was impossible. The provisions responded to the risk that enlargement would make unanimous decision-making increasingly difficult, by enabling willing Member States to proceed without being blocked by those unwilling to integrate further.

The Treaty provided that closer cooperation could be authorised in areas of non-exclusive Community competence, subject to strict conditions: it must not affect the Community’s common policies, must not affect the rights and obligations of non-participating Member States, must be open to all Member States at any time, and must be authorised by the Council acting by qualified majority on a proposal from the Commission after consulting the European Parliament. The provisions were highly restrictive and were never used, but they provided the template for the more workable enhanced cooperation provisions introduced by the Treaty of Nice and refined by the Treaty of Lisbon.

Fundamental Rights and the ECHR

The Amsterdam Treaty strengthened the protection of fundamental rights in the EU legal order. Article 6 TEU was amended to provide that the Union is founded on the principles of liberty, democracy, respect for human rights and fundamental freedoms, and the rule of law, principles which are common to the Member States. The Treaty introduced a procedure (Article 7 TEU) for suspending the rights of a Member State that commits a serious and persistent breach of these principles, including the suspension of voting rights in the Council.

The Amsterdam Treaty also required that any state applying for EU membership must respect the principles of Article 6 TEU, codifying the Copenhagen criteria in primary law. The Treaty provided that the Union may conclude agreements with third countries that respect these principles, and that the Union must respect fundamental rights as guaranteed by the ECHR and as they result from the constitutional traditions common to the Member States as general principles of Community law.

Institutional Adjustments

The Amsterdam Treaty made limited institutional reforms, insufficient for the forthcoming enlargement. The co-decision procedure was simplified and extended to additional policy areas, strengthening the European Parliament’s legislative role. The Council’s voting weights were adjusted but not fundamentally reformed, and the Commission’s size was not addressed. The Treaty’s failure to resolve the institutional questions of voting weights, Commission composition, and the extension of QMV created the need for the subsequent Treaty of Nice.

The Treaty also introduced the negative declaration procedure, allowing the Council to block Commission implementing measures by qualified majority, strengthening Member State control over the Commission’s executive powers. The simplified revision procedure for technical Treaty amendments was introduced, enabling the Council to amend certain Treaty provisions by unanimity without an intergovernmental conference.

The Treaty’s Legacy

The Treaty of Amsterdam made important contributions to the EU’s constitutional framework while leaving significant institutional questions unresolved. Its incorporation of the Schengen acquis and the Social Protocol consolidated earlier developments within the EU legal order. Its provisions on fundamental rights, including the Article 7 procedure for protecting EU values, established constitutional safeguards that would become increasingly important in later years. The creation of the AFSJ laid the foundation for the extensive body of EU legislation on asylum, immigration, and judicial cooperation that has developed since. Amsterdam’s institutional limitations, however, made a further Treaty revision necessary before enlargement could proceed.