“ TITLE I Section 1. For the purposes of this title, 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 herein provided. ”

“ INCOME OF FOREIGN GOVERNMENTS AND OF INTERNATIONAL ORGANIZATIONS.—The income of foreign governments or international organizations received from investments in the United States in stocks, bonds, or other domestic securities, owned by such foreign governments or by international organizations, or from interest on deposits in banks in the United States of moneys belonging to such foreign governments or international organizations, or from any other source within the United States. ”

“ If, in the case of an employee of a foreign government or the Commonwealth of the Philippines, the foreign government or the Commonwealth grants an equivalent exemption to employees of the Government of the United States performing similar services in such foreign country or such Commonwealth, as the case may be. ”