The Employer may assign any of his work to another Employer; and in which case, the latter shall be solely responsible for the rights entitled by virtue of the provisions of this Decree by law to his Workers performing such work, unless agreed otherwise between the two parties.
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UAE Labour Law (Decree-Law 33/2021)
Article 11: Outsourcing Some of Employer's Tasks to Another Employer
Official English translation from the UAE Legislation portal. For interpretation and application, the original Arabic text prevails.