Contract Administration Office Chief Administrative Officer Compliance Advisor Ombudsman Carraro Customer Assistance Office Chronic airway obstruction Computer Aided Office Computer-Assisted Ordering Corrective Action Order Calcium Oxide Center Adjudications Officer Central Accounting Office Chief Acquisition Officer Computer-Aided Optimization Congressional Activities Office Constant Administrative Office Coordination of Atomic Operations Counter Air Operation Crisis Action Organization Air China Cargo Canadian Association of Optometrists Canadian Association of Orthodontists Cargo Aircraft Only Carlsbad Area Office carotid artery occlusion Casualty Assistance Office Catania Astrophysical Observatory Central Action Office Central Aerological Observatory Central Application Office
Contract Administration Office
Chief Administrative Officer