Tarnovo Constitution
As an organ, the Grand National Assembly was introduced with the Tarnovo Constitution of 1879, abolished in 1947 and reintroduced with the 1991 constitution. In different constitutional provisions, it was constituted by a different number of representatives. According to the 1991 Constitution, it consists of 400 deputies (as opposed to 240 in the ordinary one). The 1991 Constitution was adopted by the Seventh Grand National Assembly and was composed of 200 members being elected by proportional representation and the other 200 under a first-past-the-post voting system. The Constitution provides that the elections for Grand National Assembly shall be conducted in the same manner as those for the Ordinary National Assembly.