Constitution of the Czech Republic

Land
Czechia

Article 18 (1) Elections to the Chamber of Deputies shall be held by secret ballot on the basis of universal, equal and direct suffrage and under the principles of proportional representation. (2) Elections to the Senate shall be held by secret ballot on the basis of universal, equal and direct suffrage and under the principles of the majority system. (3) Every citizen of the Czech Republic who has attained the age of eighteen years shall have the right to vote. Article 19 (1) Every citizen of the Czech Republic who has the right to vote and who has attained the age of twenty-one years may be elected to the Chamber of Deputies. (2) Every citizen of the Czech Republic who has the right to vote and who has attained the age of forty years may be elected to the Senate. (3) The mandate of a Deputy or a Senator shall be established on his or her election. Article 21 Nobody may be at the same time member of both chambers of the Parliament. Article 22 (1) The office of Deputy or Senator shall be incompatible with the exercise of the office of the President of the Republic, of a judge or of other offices specified by law. (2) On the day when a Deputy or Senator assumes the office of President of the Republic or on the day when he or she assumes the office of judge or another office incompatible with the office of Deputy or Senator, his or her mandate as Deputy or Senator shall cease.