The Parliament shall be made up of two Houses, the House of Representatives and the House of Counsellors .Members of the Houses shall hold their mandate from the Nation. Their right to vote shall be personal and cannot be delegated.
Members of the House of Representatives shall be elected for a six- year term by direct universal suffrage. The legal legislative period shall end at the opening of the October session in the fifth year following the election of the House.
The number of representatives as well as the voting system, eligibility requirements, incompatibility cases, legal contentions concerning elections shall be set out in an organic law.
The President shall be elected first at the beginning of the legislative period, then at the April session in the third year of the said period and for the remaining portion thereof.
Members of the Board shall be elected for one year; their number shall be in propotion to their respective groups.
For 3/5 of its membership, the House of Counsellors shall consist of members elected in each region by electoral colleges made up of elected members of trade chambers as well as members elected at the national level by an electoral college consisting of wage-earners′ representatives.
Members of the House of Counsellors shall be elected for a nine-year term.One third of the House shall be renewed every three years.In the first and second renewal operations, seats shall be drawn by lot. The number of counsellors as well as the voting system, the number of members to be elected by each electoral college, the distibution of seats according to regions, eligibility requirements, incompatibility cases, balotting procedures mentionned above and legal contentions concerning elections shall be set out in an organic law.
The President of the House of Counsellors and members of the Board shall be elected at the October session during each renewal operation in the House. Members of the Board shall be elected in propotion to the size of their respective groups.
Upon the setting up of the first House of Counsellors or upon its election following the dissolution of the preceding House, the President and the members of the Board shall be elected at the beginning of the session which follows the election;they shall seek renewal of their term of office at the beginning of the October session during each renewal operation in the House.

The Parliament is organized according to the 36 article of the constitution