required to be directly elected under article 78(1)(a) of this Constitution. (2) The political system may also be changed by the elected representatives of the people in Parliament and district councils by resolution of Parliament supported by not less than two-thirds of all members of Parliament upon a petition to it supported by not less than two-thirds majority of the total membership of each of at least half of all district councils. (3) The resolutions or petitions for the purposes of changing the political system shall be taken only in the fourth year of the term of any Parliament. 75. Prohibition of one-party State. Parliament shall have no power to enact a law establishing a one-party state. General. 76. Parliament to enact laws on elections. Parliament may, subject to the provisions of this Constitution, enact such laws as may be necessary for the purposes of this Chapter, including laws for the registration of voters, the conduct of public elections and referenda and, where necessary, making provision for voting by proxy.