Federal Aviation Administration Abbreviations and Acronyms

1. OMC
   Observed Minus Computed
2. OMEGA
   Ground-based VLF Navigation System
3. OMT
   Object Modeling Technique
4. OOMB
   Office of Management and Budget
5. OOOI
   Out Off On In
6. OOS
   Out of Service
7. OPCONCTR
   Operations Control Center
8. OPER
   Operations
9. OPER SYST
   Operating System
10. OPEVAL
    Operational Evaluation
11. OPI
    Office of Primary Interest
12. OPM
    Opportunistic PM
13. OPNS
    Operations
14. OPR
    Offices of Primary Responsibility
15. OPS
    Operations
16. OPSYS
    Operating System
17. OPT
    Operational Testing
18. OPT
    Organizational Performance Target
19. ORD
    Operational Requirements Document
20. ORD
    Operation Readiness Demonstration

Last updated: September 10, 2020 — Total entries: 2,563