USCS may refer to: Unified Soil Classification System, a soil classification system used in engineering and geology United States Code Service, an unofficial codification with editorial enhancements of United States laws published by LexisNexis United States Commercial Service, a trade promotion arm of the International Trade Administration within the United States Department of Commerce United States Customs Service, a former portion of the U.S. Federal Government dedicated to keeping illegal products outside of U.S. borders United States customary units, U.S. customary system of units, also known in the United States as English units Universal Ship Cancellation Society, an international philatelic non-profit organization University of South Carolina Spartanburg, a public university in Spartanburg, South Carolina Universidade Municipal de São Caetano do Sul, a university in São Caetano do Sul, Brazil