Customer Service Management 
Command and Service Module 
Command Sergeant Major 
Command and Service Modules 
Central Security Module 
Committee on Safety of Medicines 
Climate System Model 
Climate System Monitoring 
Cluster Systems Management 
Colorado School of Mines 
Command Service Module 
Computer Status Matrix 
conceptual site model 
CONTINUOUS SHEET MEMORY 
contraceptive social marketing 
Customer Service Manager 
Call Switching Module 
Camborne School of Mines 
Canadian Society of Microbiologists 
Cell-Site Modem 
Central Services Module 
Central Switch Matrix 
Channel Supervision Message 
Chemical surety material 
Christian Science Monitor 
Clock Supply Module 
Code Set Map 
Cold Sky Mirror 
Combined Symbol Matching 
Common Support Module