The Constitution of the Islamic Republic of Iran
Article 13 [Recognized Religious Minorities]
Zoroastrian, Jewish, and Christian Iranians are the only recognized religious minorities, who, within the limits of the law, are free to perform their religious rites and ceremonies, and to act according to their own canon in matters of personal affairs and religious education.
Article 14 [Non-Muslims' Rights]
In accordance with the sacred verse "God does not forbid you to deal kindly and justly with those who have not fought against you because of your religion and who have not expelled you from your homes" [60:8], the government of the Islamic Republic of Iran and all Muslims are duty-bound to treat non-Muslims in conformity with ethical norms and the principles of Islamic justice and equity, and to respect their human rights. This principle applies to all who refrain from engaging in conspiracy or activity against Islam and the Islamic Republic of Iran.
Chapter II the Official Language, Script, Calendar, and Flag of the Country
Article 15 [Official Language]
The Official Language and script of Iran, the lingua franca of its people, is Persian. Official documents, correspondence, and texts, as well as text-books, must be in this language and script. However, the use of regional and tribal languages in the press and mass media, as well as for teaching of their literature in schools, is allowed in addition to Persian.
Article 16 [Arabic Language]
Since the language of the Koran and Islamic texts and teachings is Arabic, and since Persian literature is thoroughly permeated by this language, it must be taught after elementary level, in all classes of secondary school and in all areas of study.
Article 17 [Official Calendar]
The Official Calendar of the country takes as its point of departure the migration of the Prophet of Islam -- God's peace and blessings upon him and his Family. Both the solar and lunar Islamic calendars are recognized, but government offices will function according to the solar calendar. The official weekly holiday is Friday.
Article 18 [Official Flag]
The Official Flag of Iran is composed of green, white, and red colors, with the special emblem of the Islamic Republic, together with the State Motto.
Chapter III the Rights of the People
Article 19 [No Discrimination, No Privileges]
All people of Iran, whatever the ethnic group or tribe to which they belong, enjoy equal rights; color, race, language, and the like, do not bestow any privilege.
Article 20 [Equality before Law]
All citizens of the country, both men and women, equally enjoy the protection of the law and enjoy all human, political, economic, social, and cultural rights, in conformity with Islamic criteria.
Article 21 [Women's Rights]
The government must ensure the rights of women in all respects, in conformity with Islamic criteria, and accomplish the following goals:
1) Create a favorable environment for the growth of woman's personality and the restoration of her rights, both the material and intellectual;
2) The protection of mothers, particularly during pregnancy and child-rearing, and the protection of children without guardians;
3) Establishing competent courts to protect and preserve the family;
4) The provision of special insurance for widows, aged women, and women without support;
5) The awarding of guardianship of children to worthy mothers, in order to protect the interests of the children, in the absence of a legal guardian.
Article 22 [Human Dignity and Rights]
The dignity, life, property, rights, residence, and occupation of the individual are inviolate, except in cases sanctioned by law.
Article 23 [Freedom of Belief]
The investigation of individuals' beliefs is forbidden, and no one may be molested or taken to task simply for holding a certain belief.
Article 24 [Freedom of the Press]
Publications and the press have freedom of expression except when it is detrimental to the fundamental principles of Islam or the rights of the public. The details of this exception will be specified by law.
Article 25 [Secrecy of Communication]
The inspection of letters and the failure to deliver them, the recording and disclosure of telephone conversations, the disclosure of telegraphic and telex communications, censorship, or the willful failure to transmit them, eavesdropping, and all forms of covert investigation are forbidden, except as provided by law.
Article 26 [Freedom of Association]
The formation of parties, societies, political or professional associations, as well as religious societies, whether Islamic or pertaining to one of the recognized religious minorities, is permitted provided they do not violate the principles of independence, freedom, national unity, the criteria of Islam, or the basis of the Islamic Republic. No one may be prevented from participating in the aforementioned groups, or be compelled to participate in them.
Article 27 [Freedom of Assembly]
Public gatherings and marches may be freely held, provided arms are not carried and that they are not detrimental to the fundamental principles of Islam.