2007 enlargement of the European Union
On 1 January 2007, Bulgaria and Romania became member states of the European Union in the fifth wave of EU enlargement.
Bulgaria and Romania did not have a referendum related to European Union accession.
Negotiations
was the first country of post-communist Europe to have official relations with the European Community. In 1974, a treaty included Romania in the Community's Generalized System of Preferences. Following the Romanian Revolution of 1989, membership of the EC, and its successor the European Union, had been the main goal of every Romanian Government and practically every political party in Romania. Romania signed its Europe Agreement in 1993, and submitted its official application for membership in the EU on 22 June 1995 and Bulgaria submitted its official application for membership in the EU on 14 December 1995. Along with its official EU application, Romania submitted the Snagov Declaration, signed by all fourteen major political parties declaring their full support for EU membership.During the 2000s, Bulgaria and Romania implemented a number of reforms to prepare for EU accession, including the consolidation of its democratic systems, the institution of the rule of law, the acknowledgement of respect for human rights, the commitment to personal freedom of expression, and the implementation of a functioning free-market economy. The objective of joining the EU also influenced Bulgaria and Romania's regional relations. As a result, Bulgaria and Romania imposed visa regimes on a number of states, including Russia, Ukraine, Belarus, Serbia, Montenegro, Turkey and Moldova.
Within the framework of integration meetings held between the EU member states and the EU candidate states Bulgaria and Romania, an 'Association Committee' was held on 22 June 2004. It confirmed overall good progress for the preparation of accession; however, it highlighted the need for further reform of judicial structures in both Bulgaria and Romania, particularly in its pre-trial phases, as well as the need for further efforts to fight against political corruption and organized crime, including human trafficking. The findings were reflected in the 2004 Regular Report for Bulgaria and Romania.
The Brussels European Council of 17 December 2004 confirmed the conclusion of accession negotiations with Bulgaria and Romania. The 26 September 2006 of the European Commission confirmed the date once more, also announcing that Bulgaria and Romania would meet no direct restrictions, but progress in certain areas – reforms of the judicial system, elimination of corruption and the struggle against organized crime — would be strictly monitored.
Cyrillic
With this accession, Cyrillic became the third official alphabet of the EU, after the Latin and Greek alphabets. Cyrillic will also be featured on the euro banknotes and the national side of the Bulgarian euro coins. The ECB and the EU Commission insisted that Bulgaria change the official name of the currency from ЕВРО to ЕУРО, claiming that the currency should have a standard spelling and pronunciation across the EU. For details, see Linguistic issues concerning the euro. The issue was decisively resolved in favour of Bulgaria at the 2007 EU Summit in Lisbon, allowing Bulgaria to use the Cyrillic spelling евро on all official EU documents.Treaty
The date of accession, 1 January 2007, was set at the Thessaloniki Summit in 2003 and confirmed in Brussels on 18 June 2004. Bulgaria, Romania and the EU-25 signed the Treaty of Accession on 25 April 2005 at Luxembourg's Neumuenster Abbey.The 26 September 2006 monitoring report of the European Commission confirmed the entry date as 1 January 2007. The last instrument of ratification of the Treaty of Accession was deposited with the Italian government on 20 December 2006 thereby ensuring it came into force on 1 January 2007.
Areas of participation after EU accession
Bulgaria and Romania became members on 1 January 2007, but the application of some areas of cooperation in the European Union to Bulgaria and Romania were deferred to a later date. These were:- Schengen Area : partial application from 31 March 2024, full application from 1 January 2025.
- Eurozone : participation of Bulgaria from 1 January 2026, of Romania TBD.
Free movement of persons within the EU
Post-accession access to free movement in other EU member states
On 1 January 2007, Bulgarian and Romanian nationals became European Union citizens and acquired the right to move and reside freely in other EU member states. However, some member states of the EU required Bulgarians and Romanians to acquire a permit to work, whilst members of all other old member states did not require one. In the Treaty of Accession 2005, there was a clause about a transition period so each old EU member state could impose such 2+3+2 transitional periods. Restrictions were planned to remain in place until 1 January 2014 – 7 years after their accession.On 1 January 2014, restrictions were lifted in the last remaining member states, giving Bulgarian and Romanian citizens right to work in all EU and EEA member states.
| EU member state | Bulgaria | Romania |
| Finland | 1 January 2007 | 1 January 2007 |
| Sweden | 1 January 2007 | 1 January 2007 |
| Cyprus | 1 January 2007 | 1 January 2007 |
| Estonia | 1 January 2007 | 1 January 2007 |
| Latvia | 1 January 2007 | 1 January 2007 |
| Lithuania | 1 January 2007 | 1 January 2007 |
| Poland | 1 January 2007 | 1 January 2007 |
| Czech Republic | 1 January 2007 | 1 January 2007 |
| Slovakia | 1 January 2007 | 1 January 2007 |
| Slovenia | 1 January 2007 | 1 January 2007 |
| Portugal | 1 January 2009 | 1 January 2009 |
| Spain | 1 January 2009 | 1 January 2009 |
| Greece | 1 January 2009 | 1 January 2009 |
| Denmark | 1 January 2009 | 1 January 2009 |
| Hungary | 1 January 2009 | 1 January 2009 |
| Italy | 1 January 2012 | 1 January 2012 |
| Ireland | 1 January 2012 | 1 January 2012 |
| France | 1 January 2014 | 1 January 2014 |
| Germany | 1 January 2014 | 1 January 2014 |
| Austria | 1 January 2014 | 1 January 2014 |
| Belgium | 1 January 2014 | 1 January 2014 |
| Netherlands | 1 January 2014 | 1 January 2014 |
| Luxembourg | 1 January 2014 | 1 January 2014 |
| United Kingdom | 1 January 2014 | 1 January 2014 |
| Malta | 1 January 2014 | 1 January 2014 |