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1. A migrant for employment who has been admitted on a permanent basis and the members of his family who have been authorised to accompany or join him shall not be returned to their territory of origin or the territory from which they emigrated because the migrant is unable to follow his occupation by reason of illness contracted or injury sustained subsequent to entry, unless the person concerned so desires or an international agreement to which the Member is a party so provides.
2. When migrants for employment are admitted on a permanent basis upon arrival in the country of immigration the competent authority of that country may determine that the provisions of paragraph 1 of this Article shall take effect only after a reasonable period which shall in no case exceed five years from the date of admission of such migrants.