Article 64

Each House shall adopt its own Rules of Procedure by an absolute majority of its members. Sittings shall be public; however, each of the Houses or Parliament in joint session may decide to meet in a secret sitting. The decisions of each House and of Parliament shall not be valid unless a majority of the members is present and unless the said decisions are adopted by a majority of those present, except when the Constitution requires a special majority. Members of the Government, even if they are not members of the Houses, shall have the right, and, when requested to be present, the obligation to attend sittings. They shall be heard every time they so request.