Preface Introduction I. Establishing a new mission in New York II. Letters of credentials III. Appointment of a new Permanent Representative IV. Letters and notes verbales V. Registration of members of permanent/ observer missions VI. Diplomatic privileges and immunities VII. Categories of United States visas for diplomatic and non-diplomatic members of permanent/observer missions, their families and household employees VIII. Changes in permanent/observer missions IX. Temporary absence of a Permanent Representative/Observer from Headquarters X. Termination of service at permanent/observer missions XI. Accreditation of delegates to meetings XII. United Nations building passes XIII. VIP passes XIV. Protocol passes XV. Composition of Governments of Member/ observer States XVI. Change of official name of a Member State or a national flag XVII. National holidays XVIII. The "Blue Book" XIX. Official visits of dignitaries to United Nations Headquarters XX. Official mourning XXI. Special arrangements for General Assembly sessions XXII. Use of the Dag Hammarskjöld Auditorium XXIII. United Nations garage parking decals