United States Code 
University of Southern California 
University of South Carolina 
Uchinoura Space Center 
Ulster Special Constabulary 
Under Separate Cover 
Unified soil classification 
United States citizen 
universal service contract 
Unless sooner commenced 
U S CAN CORPORATION 
Ultra Selective Cracking 
Ultra-Selective Conversion 
Under Secretaries Committee 
Unified Space Command 
uniform soil classification 
Union School Corporation 
unique sequence component 
Unit Security Contact 
United Somali Congress 
United States Check Airlines 
United States Census 
United States Congress 
Universal Service Charge 
Universal Service Circuit 
Universal Service Code 
Universidad de San Carlos 
Universidad de Santiago de Chile 
Universidad de Santiago de Compostela 
University of San Carlos