Common Access Card 
Combined Arms Center 
Connection Admission Control 
Call Admission Control 
Charge Air Cooler 
Carrier Access Code 
Consumer Advisory Committee 
Climate Analysis Center 
Computing Accreditation Commission 
Circuit Administration Center 
Community Activity Center 
Customer Administration Center 
Customer Assistance Center 
California Administrative Code 
Carbon Arc Cutting 
Central Arizona College 
Clinical Application Coordinator 
Codex Alimentarius Commission 
Combined Arms Command 
Common Access Cards 
Compressed Aeronautical Chart 
Computer Aided Crime 
current actions center 
Carrier Access Codes 
Carrier Advisory Committee 
Casualty Area Command 
Center for Advanced Computation 
Central Air Conditioning 
Central Analysis Center 
Certified Alcohol Counselor