Us Post Abbreviations and Acronyms
- OCR/CSOptical Character Reader/Channel Sorter
- OCRAOffice of Classification & Rates Administration
- OCRAOffice of Classification and Rates Administration
- OCSOne Code Solution
- OCTOffice of Communications and Technology
- ODISOrigin Destination Information System
- OEEOverall Equipment Effectiveness
- OELOptional Endorsement Line
- OEMOriginal Equipment Manufacturer (usually in reference to car parts)
- OEMAOptional Equipment Maintenance Allowance
- OFCCSOptical Fiber Communication Snd Control System
- OFCCSOptical Fiber Communication and Control System
- OFMOn-line File Maintenance
- OGEOffice of Government Ethics
- OICOfficer In Charge
- OIGOfficer of The Inspector General
- OINCOfficer In Charge
- OKSOperator Keying Station
- OLQOn-Line Query
- OLROn Line Reference
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