Disaster Field Office
Designated Federal Officer
Department of Fisheries and Oceans
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Designated Federal Official
Decade Frequency Oscillator
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Depot Facility Owner
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Design For Ownership
Dining Facility Operation
Directed Format Option
Director Flight Operations
Director of Field Operations
Director of Flight Operations
Director, Field Operations
Disaster Field Offices
Disk File Optimizer
District Forecast Office
Division of Facilites Operations
Division of Facilities Operations
Donor Funded Operations