Treaty of Accession 1985
The Treaty of Accession 1985 was the agreement between the member states of the European Communities, Spain and Portugal, concerning these countries' accession into the EC. It entered into force on 1 January 1986. The Treaty arranged accession of Spain and Portugal 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. Full title. The full official name of the treaty is: