The Federal Assembly (Bundesversammlung), which is formed by National Council and Federal Council in joint session, is largely a ceremonial institution. Its main responsibility is the swearing-in of the Federal President. It can also call a referendum on the removal of the president from office or bring the president before the Constitutional Court if it concludes that the president violated the constitution, and is ultimately responsible for declaring war.Federal Assembly of Austria - Responsibilities and Legal Principles . Retrieved 17 May 2010
