Article 6 of the Constitution states that "The people make use of state power through the agency of the National Assembly and the People's Councils, which represent the will and aspirations of the people, are elected by them and responsible to them". Deputies (members) of the National Assembly are directly elected on a democratic basis through secret ballots. All citizens who are 18 or older, regardless of ethnic group, gender, social position, belief, religion, level of education, occupation or length of residency have the right to vote, the exceptions being the mentally disabled and those people who have been deprived of the right to vote by law. People aged 21 or older have the right to stand as a candidate at elections. Three election commissions have been established to manage elections; at the central level is the Election Council, at the provincial level and in centrally-run cities the Election Committee is responsible for election monitoring and the Election Commission is responsible for election monitoring at constituencies.