After its founding in 1993 by Austria and Switzerland, it was joined in 1995 by Hungary and then in 1998 by Slovenia.
 The Czech Republic became a member in 2001, followed by Portugal and Sweden in 2002, Bulgaria and Poland in 2003, Croatia in 2004, Slovakia in 2006, Romania in 2010, Bosnia and Herzegovina and Serbia in 2011, and the Republic of Macedonia in 2012.
The most recent new member states are Malta and Turkey, both joined in 2018.
After its founding in 1993 by Austria and Switzerland, it was joined in 1995 by Hungary and then in 1998 by Slovenia.  The Czech Republic became a member in 2001, followed by Portugal and Sweden in 2002, Bulgaria and Poland in 2003, Croatia in 2004, Slovakia in 2006, Romania in 2010, Bosnia and Herzegovina and Serbia in 2011, and the Republic of Macedonia in 2012. The most recent new member states are Malta and Turkey, both joined in 2018.
International Centre for Migration Policy Development