Transportation Abbreviations and Acronyms

1. TAS
   Traffic Advisory System
2. U
   Unknown
3. U
   Unlicensed
4. USN
   United States Navy
5. USP
   Unidentified Street Pizza
6. USW
   Undersea Warfare
7. Y/N
   Yes or No
8. AAR
   Association of American Railroads
9. AAR
   Airport Acceptance Rate
10. AAU
    Administrative Appeals Unit
11. ACL
    Angels Crucial Leg
12. AEX
    Automated Execution
13. AIV
    Aviation Impact Variable
14. ALS
    approach lighting system
15. ALS
    Approach and Landing System
16. AMU
    Arab Maghreb Union
17. ANW
    Program Director for Weather and Flight Service Stations
18. ARR
    arrival time
19. ASP
    Aviation Safety Program
20. ASP
    Average Selling Price

Last updated: January 23, 2022 — Total entries: 10,057