2. As regards compensation matters relating to the death of a migrant worker or a member of his or her family, States Parties shall, as appropriate, provide assistance to the persons concerned with a view to the prompt settlement of such matters. Settlement of these matters shall be carried out on the basis of applicable national law in accordance with the provisions of the present Convention and any relevant bilateral or multilateral agreements. … PART VIII GENERAL PROVISIONS Article 79 Nothing in the present Convention shall affect the right of each State Party to establish the criteria governing admission of migrant workers and members of their families. Concerning other matters related to their legal situation and treatment as migrant workers and members of their families, States Parties shall be subject to the limitations set forth in the present Convention. Article 80 Nothing in the present Convention shall be interpreted as impairing the provisions of the Charter of the United Nations and of the constitutions of the specialized agencies which define the respective responsibilities of the various organs of the United Nations and of the specialized agencies in regard to the matters dealt with in the present Convention. Article 81 1. Nothing in the present Convention shall affect more favourable rights or freedoms granted to migrant workers and members of their families by virtue of: (a) The law or practice of a State Party; or 137