Chief Executive Officer 
Centre for Earth Observation 
Crew Earth Observations 
Comprehensive Electronic Office 
Crew Earth Observation 
Chief Education Officer 
CHIEF EXECUTIVE OFFICE 
Complete Enterprise Option 
Configuration Engineering Office 
Consumer Education Office 
Campaign to End Obesity 
Career Education Opportunity 
Carrier-Envelope Offset 
catalized electrochemical oxidation 
Catalyzed Electrochemical Oxidation 
Catholic Education Office 
Celestial Ephemeris Origin 
cell-enclosed oocytes 
Center for Earth Observation 
Central Engine Overhaul 
Change engineering order 
chicken-embryo-origin 
Chief Elected Official 
Chief Electoral Officer 
Chief Engineering Officer 
Chief Equipment Officer 
Chief Ergonomic Officer 
Chief Ethics Officer 
Chief Evangelistic Officer 
Chief Executing Officer