The German football league system, or league pyramid, refers to the hierarchically interconnected league system for association football in Germany that in the 2016–17 season consisted of 2,235 leagues in up to 13 levels having 31,645 teams, in which all divisions are bound together by the principle of promotion and relegation. The top three professional levels contain one division each. Below this, the semi-professional and amateur levels have progressively more parallel divisions, which each cover progressively smaller geographic areas. Teams that finish at the top of their division at the end of each season can rise higher in the pyramid, while those that finish at the bottom find themselves sinking further down. Therefore, in theory, it is possible for even the lowest local amateur club to rise to the top of the system and become German football champions one day. The number of teams promoted and relegated between the divisions varies, and promotion to the upper levels of the pyramid is usually contingent on meeting additional criteria, especially concerning appropriate facilities and finances. Structure Germany The German football league system is held under the jurisdiction of the nationwide German Football Association and its professional body German Football League, along with its five regional associations and their 21 state associations. On top of the system sit the level 1 Bundesliga and the level two 2. Bundesliga, both organized by the professional German Football League. The two top flights then are followed by the level three 3. Liga, the lowest full professional division in Germany, held by the German Football Association itself. The professional level four Regionalliga is divided into 5 regional divisions, these typically organised by one or two of the five regional associations of the German Football association, these being the Northern German Football Association, the Northeastern German Football Association, the Western German Football Association, the Southwestern Regional Football Association and the Southern German Football Association. For Bavaria, the Bavarian Football Association, a member state association of the Southern German Football Association, runs their top division under their own jurisdiction. Starting at level five, the various fully amateur divisions are usually governed by the 21 state associations. For the North East German Football Association and Southwestern Regional Football Association, both regional bodies still run the level five divisions under their jurisdiction and their state member associations' pyramids therefore start at level six. Federal association league system After each season, the