According to its Constitution (Satversme) Latvia is a unitary state, made up of four regions (Vidzeme, Latgale, Kurzeme and Zemgale), which are not administrative territories. Therefore, in Latvia there is no administrative division similar to federal states in the EU. According to the Regional Development Law (2002) 5 administrative units, one per each of 5 Planning regions, have been established. The Planning regions ensure the planning and co-ordination of regional development and co-operation between local government and other state administrative institutions. The Planning regions have taken over the coordination functions in the field of culture, thus substituting 28 regional cultural experts previously employed by the Ministry of Culture and executing the task of state cultural policy planning on a regional level. In this respect, the Ministry of Culture is collaborating with the Ministry of Environmental Protection and Regional Development.