Us Government Abbreviations and Acronyms
- OMMOffshore Minerals Management Program
- OMNIOppose Militancy, Neutralize Invasion
- OMOOccupational Medicine Office
- OMPOther Major Parks
- OMPQOffice of Manufacturing and Product Quality
- ONCOffice of The National Coordinator for Health Information Technology
- ONCOffice of the National Coordinator for Health Information Technology (United States Government Health and Human Services)
- ONCHITOffice of The National Coordinator for Health Information Technology
- ONDCPOffice of National Drug Control Policy
- ONFOlympic National Forest
- ONHIROffice of Navajo and Hopi Indian Relocation
- ONIU.S. Navy Office of Naval Intelligence
- ONPIOffice of News and Public Information
- ONROffice of Naval Research (U.S.)
- OOAOut of Air
- OOAHOffice of Administrative Hearings
- OODAObservation, Orientation, Decision and Action
- OOGOut of Government
- OOLCOffice of Legal Counsel
- OOMOffice of Occupational Medicine
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