Defense Communications Agency 
Document Content Architecture 
Defensive Counter Air 
Defense Communication Agency 
Department of Community Affairs 
Dynamic Channel Allocation 
Distributed Communication Architecture 
defensive counter-air 
Denied Claims Accuracy 
Department of Civil Aviation 
Dual Capable Aircraft 
Defence Communication Agency 
Design Change Authorization 
Digital Communications Associates 
Direct Chip Attach 
Distributed Communications Architectur… 
Document Control Assistant 
Dollar Cost Averaging 
Damage Control Assistant 
Danish Church Aid 
Data Collection and Analysis 
Decade Counting Assembly 
Defense Cooperation Agreement 
Defense Cooperation Agreements 
Deferred Compliance Authorization 
Delegated Classification Authority 
Delegation Chain Advertisement 
Design Configuration Audit 
digital command assembly 
Digital Computer Association