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XXII 3. Such registration may be effected by any party or in accordance with article 4 of these regulations.

4. The Secretariat shall record the treaties and international agreements so registered in a Register established for that purpose.

1. When a treaty or international agreement has been registered with the Secretariat, a certified statement regarding any subsequent action which effects a change in the parties thereto, or the terms, scope or application thereof, shall also be registered with the Secretariat.

2. The Secretariat shall record the certified statement so registered in the register established under articles of these regulations.

1. Registration by a party, in accordance with article 1 of these regulations, relieves all other parties of the obligation to register.

2. Registration effected in accordance with article 4 of these regulations relieves all parties of the obligation to register.

1. Every treaty or international agreement subject to article 1 of these regulations shall be registered ex officio by the United Nations in the following cases:
 * (a) Where the United Nations is a party to the treaty or agreement;
 * (b) Where the United Nations has been authorized by the treaty or agreement to effect registration.

2. A treaty or international agreement subject to article 1 of these regulations may be registered with the Secretariat by a specialized agency in the following cases:
 * (a) Where the constituent instrument of the specialized agency provides for such registration;
 * (b) Where the treaty or agreement has been registered with the specialized agency pursuant to the terms of its constituent instrument;
 * (c) Where the specialized agency has been authorized by the treaty or agreement to effect registration.