Artikel XV

1. Acceptance of this Constitution shall be effected by the deposit of an instrument of acceptance with the Director-General of the Organization and shall take effect, as regards Members of the Organization or the Office, on receipt of such instrument by the Director-General who shall forthwith inform each of the Members of the Commission.
2. Membership of States that are eligible for membership under Article I, but are neither Members of the Organization nor of the Office, shall become effective on the date on which the Commission approved the application for membership in conformity with the provisions of Article I. The Director-General shall inform each of the Members of the Commission of the approval of any application for membership.
3. Acceptance of this Constitution may be made subject to reservations. The Director-General of the Organization shall notify forthwith all Members of the Commission of the receipt of any application for membership or any instrument of acceptance of the Constitution either of which contains a reservation. A reservation shall become effective only upon unanimous approval by the Members of the Commission. The Members of the Commission not having replied within three months from the date of the notification by the Director-General of the reservation shall be deemed to have accepted the reservation. Failing unanimous approval by the Members of the Commission of a reservation, the nation making the reservation shall not become a party to this Constitution.