(1) Elections to the Chamber of Deputies shall be held by secret ballot on the basis of a universal, equal, and direct right to vote, according to the principle of proportional representation.

(2) Elections to the Senate shall be held by secret ballot on the basis of a universal, equal, and direct right to vote, according to the principle of majority rule.

(3) Each citizen of the Czech Republic who has attained the age of eighteen has the right to vote.