Article 162. Adoption of and Amendment to the Constitution
1. The Constitution and amendments to Chapters 1-3, 6, 9 and 11 of the Constitution, as well as to Articles 87-90, 92-94, 96, 106 and to Paragraph 1 of Article 107, Paragraph 1 of Article 108, Articles 109, 121,131,132,175 of the Constitution shall be adopted only through a referendum. At least one third of the total number of Deputies, the President of the Republic or at least 10 percent of citizens having the right of suffrage shall have the right to the initiative of adopting or amending the Constitution.
2. Except for the Chapters and Articles specified in Paragraph 1 of this Article, amendments to other Articles of the Constitution shall be adopted by the National Assembly, by at least two thirds of votes of the total number of Deputies on the inititive of at least one third of the total number of Deputies, the President of the Republic or at least 5 percent of citizens having the right of suffrage.
3. Referendum shall be held by the decision adopted by at least two thirds of votes of the total number of Deputies.
Article 163. Non-Amendable Articles of the Constitution
Articles 1-4 and 163 of the Constitution shall not be subject to amendment.
Article 164. Referendum on the Laws and Other Issues
Laws as well as key issues of state life, in the cases and under the procedure prescribed by law shall be put to a referendum.
Article 165. Adoption of an Act Put to Referendum
An act put to referendum shall be adopted in case more than half of the participants of the referendum, but not less than one fourth of citizens with the right to participate in referenda, have voted in favor.