The International Sava River Basin Commission is in charge of the river running through four states.
Following the support of the Stability Pact for South-Eastern Europe, four riparian countries of the Sava River Basin - Bosnia and Herzegovina, Federal Republic of Yugoslavia>Serbia, Republic of Croatia and Republic of Slovenia entered into a process of cooperation known as "the Sava River Basin Initiative". Bosnia and Herzegovina 331 km Serbia 206 km Slovenia 218 km Croatia 562 km After dissolution of the Socialist Federal Republic of Yugoslavia in the early 1990s, the Sava River, which was the biggest national river in Yugoslavia, has become an international river of 4 former Yugoslav republics. The result of FASRB agreement, which integrated all aspects of the water resources management was established of International Sava River Basin Commission (ISRBC) for the implementation of the FASRB. As result of that, on the November 29, 2001 in Sarajevo was signed "Letter of Intent".After that the basin countries accepted a challenge and managed to conclude the Framework Agreement on the Sava River Basin (FASRB). 
