Postal Abbreviations and Acronyms

1. d.d.
   Deceased
2. uss
   Uniform Symbology Specifications
3. M&P
   Northern Mariana Islands
4. MSSM
   Medium Speed Sorting Machine
5. MSSP
   Manpower Scheduling and Staffing Program
6. MSu
   Modular Sorting Unit
7. NAS
   United States National Academy of Sciences
8. O
   Ohio
9. PRS
   Parcel Return Service
10. S&T
    Source/Type Code
11. SPO
    Serving Post Office
12. SPR
    Small Parcels and Rolls
13. SOW
    Statement of Work
14. NALC
    National Association of Letter Carriers
15. NAVSUP
    Navy Supply Systems Command
16. P&R
    Puerto Rico
17. SATO
    scheduled airline ticket office
18. MARS
    Maintenance Activity Reporting and Scheduling
19. NARS
    National Accident Reporting System
20. STS
    Supervisory Training System

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