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Treaty of Accession 2003
Treaty concerning the accession of the Czech Republic, the Republic of Estonia, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Republic of Hungary, the Republic of Malta, the Republic of Poland, the Republic of Slovenia and the Slovak Republic to the European Union Treaty between the Kingdom of Belgium, the Kingdom of Denmark, the Federal Republic of Germany, the Hellenic Republic, the Kingdom of Spain, the French Republic, Ireland, the Italian Republic, the Grand Duchy of Luxembourg, the Kingdom of the Netherlands, the Republic of Austria, the Portuguese Republic, the Republic of Finland, the Kingdom of Sweden, the United Kingdom of Great Britain and Northern Ireland (Member States of the European Union) and the Czech Republic, the Republic of Estonia, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Republic of Hungary, the Republic of Malta, the Republic of Poland, the Republic of Slovenia, the Slovak Republic, concerning the accession of the Czech Republic, the Republic of Estonia, the Republic of Cyprus, the Republic of Latvia, the Republic of Lithuania, the Republic of Hungary, the Republic of Malta, the Republic of Poland, the Republic of Slovenia and the Slovak Republic to the European Union.
Countries involved in the treaty, with newly joining countries in yellow, and existing EU countries in blue.
Type	Accession treaty
Signed	16 April 2003
Location	Athens
Effective	1 May 2004
Condition	Ratification by the 10 acceding countries and the 15 member countries of the European Union
Signatories	European Union (15 members) Cyprus Czech Republic Estonia Hungary Latvia Lithuania Malta Poland Slovakia Slovenia
Ratifiers	25 / 25
Depositary	Government of the Italian Republic
Languages	Czech, Danish, Dutch, English, Estonian, Finnish, French, German, Greek, Hungarian, Italian, Latvian, Lithuanian, Maltese, Polish, Portuguese, Slovak, Slovene, Spanish, Swedish
After amendments made by the Athens Treaty: Consolidated version of TEC (2006) Consolidated version of TEU (2006) Consolidated version of Protocols & Annexes (2006)

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