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Treaty concerning the accession of the Hellenic Republic to the European Economic Community and to the European Atomic Energy Community

Treaty of Accession 1979 Treaty between the Kingdom of Belgium, the Kingdom of Denmark, the Federal Republic of Germany, the French Republic, Ireland, the Italian Republic, the Grand Duchy of Luxembourg, the Kingdom of the Netherlands, the United Kingdom of Great Britain and Northern Ireland (Member States of the European Communities) and the Hellenic Republic concerning the accession of the Hellenic Republic to the European Economic Community and to the European Atomic Energy Community.
Countries involved in the treaty, with newly joining countries in yellow and existing EC countries in blue.
Signed	28 May 1979
Location	Athens, Greece
Effective	1 January 1981
Condition	Ratification by Greece and all 9 Member States of the European Communities
Signatories	European Communities (9 members) Greece
Ratifiers	10 / 10
Depositary	Government of the Italian Republic
Languages	All 7 officialLanguages of the European Communities andGreek

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TheTreaty of Accession 1979 was the agreement between theEuropean Communities andGreece, concerning this country's accession into the EC. It entered into force on 1 January 1981. The Treaty arranged accession of Greece to the EC and amended earliertreaties of the European Communities. As such it is an integral part of the constitutional basis of the European Union.^[1]

The full official name of the treaty is:

Treaty between theKingdom of Belgium, theKingdom of Denmark, theFederal Republic of Germany, theFrench Republic,Ireland, theItalian Republic, theGrand Duchy of Luxembourg, theKingdom of the Netherlands, theUnited Kingdom of Great Britain and Northern Ireland (Member States of the European Communities) and theHellenic Republicconcerning the accession of the Hellenic Republic to the European Economic Community and to the European Atomic Energy Community.

• 1981 enlargement of the European Communities
• Enlargement of the European Union

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