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Training seminars on treaty law and practice at the United Nations Headquarters, in New York, are organized twice a year (Spring and Fall).These seminars cover the depositary practice of the Secretary-General and the registration and publication of treaties in accordance with Article 102 of the Charter, as well as more specialized topics, such as particular issues arising with respect to certain aspects of the law of treaties (e.g., reservations, amendments) or to treaties in certain areas (e.g., environment, human rights, disarmament).

Topics covered include:

• Introduction to the work of the Treaty Section and the law of treaties;
• Final clauses to multilateral treaties (participation, entry into force, reservations, amendments, etc.);
• Practice of the Secretary-General as depositary of multilateral treaties and conditions for the deposit of instruments;
• Requisites for registration and publication of treaties, under Article 102 of the Charter;
• Resources of the United Nations Treaty Collection website.

These training seminars are mainly intended for the diplomatic community at Headquarters, including legal advisers and other officials of Permanent Missions to the United Nations, visiting government officials from capitals, and other interested persons. They are free of charge and are conducted in English. Invitations to the UN Headquarters training seminars are sent to Permanent Missions and published on the United Nations Journal and this website.

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