For the purposes of this subchapter, the term “international organization” means a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation, and which shall have been designated by the President through appropriate Executive order as being entitled to enjoy the privileges, exemptions, and immunities provided in this subchapter. The President shall be authorized, in the light of the functions performed by any such international organization, by appropriate Executive order to withhold or withdraw from any such organization or its officers or employees any of the privileges, exemptions, and immunities provided for in this subchapter (including the amendments made by this subchapter) or to condition or limit the enjoyment by any such organization or its officers or employees of any such privilege, exemption, or immunity. The President shall be authorized, if in his judgment such action should be justified by reason of the abuse by an international organization or its officers and employees

Pursuant to regulations prescribed by the Commissioner of U.S. Customs and Border Protection with the approval of the Secretary of the Treasury, the baggage and effects of alien officers and employees of international organizations, or of aliens designated by foreign governments to serve as their representatives in or to such organizations, or of the families, suites, and servants of such officers, employees, or representatives shall be admitted (when imported in connection with the arrival of the owner) free of customs duties and free of internal-revenue taxes imposed upon or by reason of importation.

International organizations shall be exempt from all property taxes imposed by, or under the authority of, any Act of Congress, including such Acts as are applicable solely to the District of Columbia or the Territories.

The privileges, exemptions, and immunities of international organizations and of their officers and employees, and members of their families, suites, and servants, provided for in this subchapter, shall be granted notwithstanding the fact that the similar privileges, exemptions, and immunities granted to a foreign government, its officers, or employees, may be conditioned upon the existence of reciprocity by that foreign government: Provided, That nothing contained in this subchapter shall be construed as precluding the Secretary of State from withdrawing the privileges, exemptions, and immunities provided in this subchapter from persons who are nationals of any foreign country on the ground that such country is failing to accord corresponding privileges, exemptions, and immunities to citizens of the United States.

The provisions of this subchapter may be extended to the European Space Agency and to the Organization of Eastern Caribbean States (including any office established in the United States by that organization) in the same manner, to the same extent, and subject to the same conditions, as they may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation.

The International Committee of the Red Cross, in view of its unique status as an impartial humanitarian body named in the Geneva Conventions of 1949 and assisting in their implementation, shall be considered to be an international organization for the purposes of this subchapter and may be extended the provisions of this subchapter in the same manner, to the same extent, and subject to the same conditions, as such provisions may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation.

The International Union for Conservation of Nature and Natural Resources shall be considered to be an international organization for the purposes of this subchapter and may be extended the provisions of this subchapter in the same manner, to the same extent, and subject to the same conditions, as such provisions may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation.

The provisions of this subchapter may be extended to the European Central Bank in the same manner, to the same extent, and subject to the same conditions, as they may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation.

The provisions of this subchapter may be extended to the Global Fund to Fight AIDS, Tuberculosis and Malaria in the same manner, to the same extent, and subject to the same conditions, as they may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation.

The provisions of this subchapter may be extended to the Office of the High Representative in Bosnia and Herzegovina (and to its officers and employees) or the International Civilian Office in Kosovo (and to its officers and employees) in the same manner, to the same extent, and subject to the same conditions, as such provisions may be extended to a public international organization in which the United States participates pursuant to any treaty or under the authority of any Act of Congress authorizing such participation or making an appropriation for such participation. Any such extension may provide for the provisions of this subchapter to continue to extend to the Office of the High Representative in Bosnia and Herzegovina (and to its officers and employees) or the International Civilian Office in Kosovo (and to its officers and employees) after that Office has been dissolved.

Under such terms and conditions as he shall determine, the President is hereby authorized to extend, or to enter into an agreement extending, to the representatives of member states (other than the United States) to the Organization of American States and to permanent observers to the Organization of American States, and to members of the staffs of said representatives and permanent observers, the same privileges and immunities, subject to corresponding conditions and obligations, as

Under such terms and conditions as he shall determine and consonant with the purposes of this section, the President is authorized to extend to the Liaison Office of the People’s Republic of China in Washington and to the members thereof the same privileges and immunities subject to corresponding conditions and obligations as are enjoyed by diplomatic missions accredited to the United States and by members thereof.

For purposes of the International Organizations Immunities Act (22 U.S.C. 288 and following), the International Development Law Institute shall be considered to be a public international organization in which the United States participates under the authority of an Act of Congress authorizing such participation.

Under such terms and conditions as the President shall determine, the President is authorized to extend, or to enter into an agreement to extend, to the Permanent Observer Mission of the Holy See to the United Nations in New York, and to its members, the privileges and immunities enjoyed by the diplomatic missions of member states to the United Nations, and their members, subject to corresponding conditions and obligations.