Postal Abbreviations and Acronyms

1. IND
   Indiana
2. IOB
   Inventory Operation Branch
3. IOCS
   In-Office Cost System
4. IOS
   Inter-Operability Specifications
5. IOSS
   Izput/Output Subsystem
6. IPA
   International Priority Airmail
7. IPA
   International Pilot's Association
8. IPA/ISAL
   International Priority Airmail/International Surface Air Lift
9. IPC
   International Post Corporatxon
10. IPCS
    International Package Consignment Service
11. IPP
    Irregular Parcels and Pieces
12. IPP
    In-Person Proofing
13. IPR
    In Process Review
14. IPS
    In-Plant Support
15. IPS
    Inward Primary Sorting
16. IPSIM
    Interactive Postal Simulator
17. IPSS
    Image Processing Subsystem
18. IPU
    Image Processing Unit
19. IRBC
    Information Rich Barcode
20. IRM
    Integrated Resource Management

Last updated: May 24, 2020 — Total entries: 2,182