The holy shrines and religious sites in Iraq are religious and civilizational entities. The State is committed to assuring and maintaining their sanctity, and to guaranteeing the free practice of rituals in them. Article 11: Baghdad is the capital of the Republic of Iraq. Article 12: First: The flag, national anthem, and emblem of Iraq shall be regulated by law in a way that symbolizes the components of the Iraqi people. Second: A law shall regulate honors, official holidays, religious and national occasions and the Hijri and Gregorian calendar. Article 13: First: This Constitution is the preeminent and supreme law in Iraq and shall be binding in all parts of Iraq without exception. Second: No law that contradicts this Constitution shall be enacted. Any text in any regional constitutions or any other legal text that contradicts this Constitution shall be considered void.