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- OAPT - Officer Awaiting Pilot Training.
- OAPTer - An officer in OAPT status. While other 2nd Lt's begin their training and leadership, OAPTers complete menial tasks in support of the mission, while they wait for their assigned training date (this is known as "casual status"). It is important for all operational bases, as OAPTers are most often supplement workforce.
- OCONUS - Outside the Continental United States
- OCR - Office of Collateral Responsibility
- OFO - Out Fucking Off
- OG - Operations Group
- OL - Operating Location
- OODA - Observe Orient Decide Act
- OPCON - Operational Control
- OPR - Office of Primary Responsibility
- OPR - Officer Performance Report
- OPSEC - Operations Security
- OPTN - Operationalizing and Professionalizing the Network
- ORI - Operational Readiness Inspection
- ORM - Operation Risk Management
- OSI - Office of Special Investigation
- OSS - Operations Support Squadron
- OT&E - Operational Test and Evaluation
- OTS - Officer Training School
Read more about this topic: List Of U.S. Air Force Acronyms And Expressions