Libya's political structure under the Qadhafi regime has been based on 600 Basic People's Congresses (BPCs), which included all citizens over the age of 18. The BPCs voted annually on representatives to the General People's Congress (GPC) and also on major decisions. However, key government officials were appointed by the prime minister, who was in turn appointed by Colonel Qadhafi. There has been little transparency in voting processes and the political system has, in effect, revolved entirely around Colonel Qadhafi. The opposition movement has said that it will seek to establish a representative democratic system in the post-Qadhafi era.