Designed Operational Capability Department of Commerce dissolved organic carbon Dynamic Overload Control Distributed Object Computing Department of Communications Department of Conservation document DATA OPTIMIZING COMPUTER Department of Corrections Discipline Operations Center doctor drug of choice Data Operations Center Data Operations Control Data Operations Controller Decimal-to-Octal Conversion Declaration Of Conformity Delayed Opening Chaff Designated Operational Coverage died of other causes DIESEL OXIDATION CATALYST DIRECT OPERATING COST Direct Operating Costs Direct Operation Costs Doctors Ought to Care Documentation Documentation of Compliance Drop-Out Compensation Counterdrug