Canadian Department of Supply and Services (MCD)
Canadian Down Syndrome Society
Caribbean Decision Support System - A framework of data and tools (NOAA)
Centre for Defence and Security Studies - University of Manitoba - Canada (RCD)
Clinical Decision Support System (MAE)
Command Decision Subsystem - Military (CAAL)
Communications Digital Switching System (ACAE)
Compressed Data Storage System
Computer Digital Switching System (NITA)
Constitutionally Delayed Short Stature - Medicine
Country Development Strategy Statement - Agency for International Development
Creative Decision Stimulation Systems (VERA)
Customer Digital Switching System - Telecommunications (MHDI)
Cystic Duct Stump Syndrome - Medicine (MELL)