UDEACEconomic and Monetary Community of Central Africa (now CEMAC)
UEMOAWest African Economic and Monetary Union
UINUnique Identifier Number
ULCCUltra large crude carrier
UMAArab Maghreb Union
UNUnited Nations
UNAIDSJoint United Nations Programme on HIV/AIDS
UNCITRALUnited Nations Commission on International Trade Law
UNCTADUnited Nations Conference on Trade and Development
UNCTCUnited Nations Center on Transnational Corporations
UN/DESA/SDUnited Nations Department of Economic and Social Affairs, Statistics Division
UNDPUnited Nations Development Program
UNEPUnited Nations Environment Program
UNESCOUnited Nations Educational, Scientific, and Cultural Organization
UNICEFUnited Nations Children Fund
UNIDOUnited Nations Industrial Development Organization
UKUnited Kingdom
URUruguay Round
URAAUruguay Round Agreements Act
USAIDU.S. Agency for International Development
USF&CSUnited States Foreign and Commercial Service
USUnited States
USAUnited States of America
USCUnited States Code
USDAUnited States Department of Agriculture
USDOCUnited States Department of Commerce
USECUnited States Mission to European Communities
USITCUnited States International Trade Commission
USOECDUnited States Mission to the Organization for Economic Cooperation and Development
USPUnited States Price
US-SACU FTAUS-Southern African Customs Union Free Trade Area
USTRUnited States Trade Representative, or Office of the United States Trade Representative
USTTAUnited States Travel and Tourism Administration, U.S. Department of Commerce
USUNUnited States Mission to the United Nations