NOTAM Contractions Abbreviations and Acronyms

1. TWY
   Taxiway
2. TY
   Temporary
3. UAG
   Upper Atmosphere Geophysics
4. UDDF
   Up and Down Drafts
5. UFN
   Until Further Notice
6. UNA
   Unavailable
7. UNAVBL
   Unavailable
8. UNFURNOTE
   Until Further Notice
9. UNLGT
   Unlighted
10. UNLGTD
    Unlighted
11. UNMKD
    Unmarked
12. UNMNT
    Unmonitored
13. UNMNTO
    Unmonitored
14. UNMRK
    Unmarked
15. UNREL
    Unreliable
16. UNRELBL
    Unreliable
17. UNSBL
    Unseasonable
18. UNST
    Unstable
19. UNSTBL
    Unstable
20. UNSTDY
    Unsteady

Last updated: September 14, 2020 — Total entries: 1,482