Depending on the scope of a disaster, the response is co-ordinated by the smallest unit possible, whether the municipality, the district administration, the Land or the federal government. The federal government is responsible for response to major catastrophes through State Crisis and Catastrophe Management (SKKM). This body, established in 2004 and overseen by the Ministry of the Interior, brings together all ministries, the LUnder and emergency organisations, whose emergency units previously worked independently of each other. The SKKM co-ordinates response to major natural and other hazards that affect a large part of the Austrian territory, last relatively long or are particularly complex and require co-ordination among Lander.