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Treaty of Amsterdam amending the Treaty on European Union, the Treaties establishing the European Communities and certain related acts | |
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![]() European leaders in Amsterdam, 1997 | |
Type | Amender of the TEU, the TEC, the TEAEC, and the TECSC |
Signed | 2 October 1997 |
Location | Amsterdam, Netherlands |
Effective | 1 May 1999 |
Signatories | |
Depositary | Government of Italy |
Citations | Prior amendment treaty: Maastricht Treaty (1992) Subsequent amendment treaty: Nice Treaty (2001) |
Languages | |
Full text | |
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After amendments made by the Amsterdam Treaty: Consolidated version of EURATOM treaty (1997) Consolidated version of the ECSC treaty (1997) Consolidated version of TEC (1997) Consolidated version of TEU (1997) |
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The Treaty of Amsterdam, officially the Treaty of Amsterdam amending the Treaty on European Union, the Treaties establishing the European Communities and certain related acts, was signed on 2 October 1997, and entered into force on 1 May 1999;[1] it made substantial changes to the Treaty of Maastricht, which had been signed in 1992.
Under the Treaty of Amsterdam, member states agreed to transfer certain powers from national governments to the European Parliament across diverse areas, including legislating on immigration, adopting civil and criminal laws, and enacting common foreign and security policy (CFSP), as well as implementing institutional changes for expansion as new member nations join the EU.