3. Migrant workers may enjoy political rights in the State of employment if that State, in the exercise of its sovereignty, grants them such rights. Article 43 1. Migrant workers shall enjoy equality of treatment with nationals of the State of employment in relation to: (a) Access to educational institutions and services subject to the admission requirements and other regulations of the institutions and services concerned; (b) Access to vocational guidance and placement services; (c) Access to vocational training and retraining facilities and institutions; (d) Access to housing, including social housing schemes, and protection against exploitation in respect of rents; (e) Access to social and health services, provided that the requirements for participation in the respective schemes are met; (f) Access to co-operatives and self-managed enterprises, which shall not imply a change of their migration status and shall be subject to the rules and regulations of the bodies concerned; (g) Access to and participation in cultural life. 2. States Parties shall promote conditions to ensure effective equality of treatment to enable migrant workers to enjoy the rights mentioned in paragraph 1 of the present article whenever the terms of their stay, as authorized by the State of employment, meet the appropriate requirements. 3. States of employment shall not prevent an employer of migrant workers from establishing housing or social or cultural facilities for them. Subject to article 70 of the present Convention, a State of employment may make the establishment of such facilities subject to the requirements generally applied in that State concerning their installation. Article 44 1. States Parties, recognizing that the family is the natural and fundamental group unit of society and is entitled to protection by society and the State, shall take appropriate measures to ensure the protection of the unity of the families of migrant workers. 2. States Parties shall take measures that they deem appropriate and that fall within their competence to facilitate the reunification of migrant workers with their spouses or persons who have with the migrant worker a relationship that, according to applicable law, produces effects equivalent to marriage, as well as with their minor dependent unmarried children. 3. States of employment, on humanitarian grounds, shall favourably consider granting equal treatment, as set forth in paragraph 2 of the present article, to other family members of migrant workers. Article 45 1. Members of the families of migrant workers shall, in the State of employment, enjoy equality of treatment with nationals of that State in relation to: (a) Access to educational institutions and services, subject to the admission requirements and other regulations of the institutions and services concerned; (b) Access to vocational guidance and training institutions and services, provided that requirements for participation are met; (c) Access to social and health services, provided that requirements for participation in the respective schemes are met; 25