From 1999 until April 2004, the primary geographical focus of the PFS Program was the eight Central and Eastern European (CEE) countries that joined the European Union (EU) on May 1, 2004. Individuals and institutions from several South East European (SEE) countries participated in PFS Program activities on an ad hoc basis.
In 2005, the geographical focus of the PFS Program shifted to SEE: Albania,
Bosnia and Herzegovina, Bulgaria, Croatia, Kosovo, Macedonia, Montenegro, Romania
and Serbia.