22 USC 288k - Extension of certain privileges, exemptions, and immunities to Hong Kong Economic and Trade Offices

(a) Application of International Organizations Immunities Act 
The provisions of the International Organizations Immunities Act (22 U.S.C. 288 et seq.) may be extended to the Hong Kong Economic and Trade Offices 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.
(b) Application of international agreement on certain State and local taxation 
The President is authorized to apply the provisions of Article I of the Agreement on State and Local Taxation of Foreign Employees of Public International Organizations, done at Washington on April 21, 1994, to the Hong Kong Economic and Trade Offices.
(c) “Hong Kong Economic and Trade Offices” defined 
The term Hong Kong Economic and Trade Offices refers to Hong Kongs official economic and trade missions in the United States.