Art. 3. Bulgarian shall be the official language of the Republic. Art. 6. (1) All persons are born free and equal in dignity and rights.(2) All citizens shall be equal before the law. There shall be no privileges or restriction of rights on the grounds of race, national or social origin, ethnic self-identity, sex, religion, education, opinion, political affiliation, personal or social status or property status.Art. 11. [...] (4) There shall be no political parties on ethnic, racial or religious lines [...] Art. 13. (1) The practicing of any religion shall be unrestricted.(2) Religious institutions shall be separate from the State.(3) Eastern Orthodox Christianity shall be considered the traditional religion in the Republic of Bulgaria.(4) Religious institutions and communities, and religious beliefs shall not be used to political ends.Art. 36. (1) The study and use of the Bulgarian language shall be a right and an obligation of every Bulgarian citizen.(2) Citizens whose mother tongue is not Bulgarian shall have the right to study and use their own language alongside the compulsory study of the Bulgarian language.(3) The situations in which only the official language shall be used shall be established by law.