Romania signed its Europe Agreement in 1993 and submitted its official application for membership in the European Union on 22 June 1995. The Brussels European Council of 17 December 2004 confirmed the conclusion of accession, the date of accession, 1 January 2007, was set at the Thessaloniki Summit in 2003 and confirmed in Brussels on 18 June 2004.
Romania is also a full Schengen area member. Romanian citizens are free to move, to live, to travel and work anywhere in the European Union without visas or any kind of restrictions just like being natives of any European Union country. Additionally, Romanian citizens can freely travel any time to USA without requiring any visa. That makes Romania a country trusted and respected both in European Union and USA.
https://european-union.europa.eu/principles-countries-history/country-profiles/romania_en