14 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; (d) Access to and participation in cultural life. 2. States of employment shall pursue a policy, where appropriate in collaboration with the States of origin, aimed at facilitating the integration of children of migrant workers in the local school system, particularly in respect of teaching them the local language. 3. States of employment shall endeavour to facilitate for the children of migrant workers the teaching of their mother tongue and culture and, in this regard, States of origin shall collaborate whenever appropriate. 4. States of employment may provide special schemes of education in the mother tongue of children of migrant workers, if necessary in collaboration with the States of origin. Article 46 Migrant workers and members of their families shall, subject to the applicable legislation of the States concerned, as well as relevant international agreements and the obligations of the States concerned arising out of their participation in customs unions, enjoy exemption from import and export duties and taxes in respect of their personal and household effects as well as the equipment necessary to engage in the remunerated activity for which they were admitted to the State of employment: