Chief Administrative Officer 
Central Accounting Office 
Congressional Activities Office 
Coordination of Atomic Operations 
Counter Air Operation 
Crisis Action Organization 
Casualty Assistance Office 
Central Action Office 
Chief Academic Officer 
Chief Acquisition Officers 
Civil Affairs Operations 
Classification Advisory Officer 
Collateral Action Office 
collateral action officer 
Communications Allocation Order 
Competency Aligned Organization 
Consumer Affairs Office 
Contract Administrative Officer 
Contracting Administration Office 
Contracts Administration Office 
Control Authority Office 
Cooperative Airspace Operations 
Coordinated Atomic Operations 
Coordination of Automic Ops