States of Germany and North Rhine-Westphalia are divided into governmental districts, or "Regierungsbezirke". In Rhineland-Palatinate, these districts were abolished on January 1, 2000, in Saxony-Anhalt on January 1, 2004, and in Lower Saxony on January 1, 2005. From 1990 until 2012, Saxony was divided into three districts (called "Direktionsbezirke" since 2008). In 2012, these districts' authorities were merged into one central authority, the "". The Districts of Germany "(Kreise)" are administrative districts, and every state except the city-states of Berlin and Hamburg and the state of Bremen consists of "rural districts" "(Landkreise)," District-free Towns/Cities ("Kreisfreie Städte", in Baden-Württemberg also called "urban districts", or
States of Germany voted in favour of the merger. Federalism is one of the entrenched constitutional principles of Germany. According to the German constitution (Basic Law, or '), some topics, such as foreign affairs and defence, are the exclusive responsibility of the federation (i.e., the federal level), while others fall under the shared authority of the states and the federation; the states retain residual legislative authority for all other areas, including "culture", which in Germany includes not only topics such as financial promotion of arts and sciences, but also most forms of education and job training. Though international relations including international treaties are