The exercise of this right may only be restricted by law. Article 22: No Ivoirian may be forced into exile. Article 23: Anyone persecuted because of their political, religious, philosophical convictions or their ethnicity may have the right of asylum in the territory of the Republic of Côte d'Ivoire, on the condition that they conform to the laws of the Republic. Article 24: The State guarantees all citizens equal access to culture. The freedom of artistic and literary creation is guaranteed. Artistic, scientific and technical works of art are protected by law. The State promotes and protects the cultural heritage as well as the habits and customs that do not run counter to public order and the accepted standards of behavior. Article 25: Political parties and groups form and exercise their activities freely on the condition that they respect the laws of the Republic, the principles of national sovereignty and of democracy. They are equal in rights and subject to the same obligations. Political parties and groups contribute to the exercise of the right to vote. Political parties and groups organized along regional, religious, tribal, ethnic or racial lines are prohibited. Legally constituted political parties and groups benefit from public funding, under the conditions defined by law. Article 26: Civil society is one of the components of the expression of democracy. It contributes to the economic, social and cultural development of the Nation. Article 27: It is recognized that everyone throughout the national territory has the right to a healthy environment. The transit, importation or illegal storage and dumping of toxic waste on the national territory constitute crimes that are not subject to any statute of limitations. CHAPTER II. DUTIES Article 28: The State is committed to respecting the Constitution, human rights and public freedoms. It ensures awareness and dissemination of them among the population. The State takes the necessary measures to integrate the Constitution, human rights and public freedoms into school and university education programs as well as into the training of defense and security forces, and of officials of the Administration. Article 29: The State guarantees the right of democratic opposition. On matters of national interest, the President of the Republic may solicit the opinions of opposing political parties and groups. Article 30: Concerning Ivoirians residing abroad, the State provides for their participation in the life of the Nation. It watches over their interests. Article 31: The family is the basic unit of the society. The State guarantees its protection. Parental authority is exercised by the father and mother or, failing that, by any other person in accordance with the law. Article 32: The State is committed to guaranteeing the specific needs of vulnerable persons. It takes the necessary measures to prevent the vulnerability of children, women, mothers, the elderly and persons with disabilities. It is committed to guaranteeing the access of vulnerable persons to healthcare services, education, employment, culture, sports and leisure.