| Treaty concerning the accession of the Hellenic Republic to the European Economic Community and to the European Atomic Energy Community | |
| Date Signed: | 28 May 1979 |
| Location Signed: | Athens, Greece |
| Date Effective: | 1 January 1981 |
| Condition Effective: | Ratification by Greece and all 9 Member States of the European Communities |
| Depositor: | Government of the Italian Republic |
| Languages: | All 7 official Languages of the European Communities and Greek |
The Treaty of Accession 1979 was the agreement between the European Communities and Greece, 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 earlier treaties 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: