Initial Operational Capability 
Intergovernmental Oceanographic Commis… 
Initial Operating Capability 
International Olympic Committee 
Industrial Operations Command 
International Oceanographic Commission 
integrated optical circuit 
Input / Output Controller 
Intelligence Operations Center 
input/output controller 
Instant Oil Change 
Inter-Office Channel 
In Orbit Checkout 
Indian Ocean Commission 
Indirect Operating Costs 
Initial Orbiting Capability 
Inspection of Care 
Instructor Orientation Course 
INTELSAT Operations Center 
International Operator Center 
Inter-Office Communication 
Immediate Or Cancel 
Independent Operating Carrier 
Initial Operational Clearance 
Initialization and Orbit Checkout 
In-Orbit Construction 
In-route/Out-route Controller 
Integrated Operations Capability 
Inter Office Channel 
Intercell Ohmic Contact