Defense Coordinating Officer digitally controlled oscillator Delayed Compliance Order Dial Central Office Document Control Office Document Control Officer Data Collection Office death certificate only Defense Coordinating Officers Deputy Commanding Officer DIGITAL CENTRAL OFFICE Digital Controlled Oscillator District Coordination Officer Document Change Order Damage Control Officer Data Central Office Data-Controlled Oscillator David Crawshaw Consultants Limited Debark Control Officer Defence Community Organisation Defense Communications Office Defense Connect Online Defense Coordination Office Dehydrated Castor Oil Delay Compliance Order Demand Continuity Outgoing Deputy Commander for Operations detonator circuit ohmmeter Development Change Order Device Configuration Overlay
Defense Coordinating Officer
digitally controlled oscillator