NOTAM Contractions Abbreviations and Acronyms

1. BETW
   Between
2. BFDK
   Before Dark
3. BG
   Bearing
4. BKG
   Backing
5. BKNG
   Backing
6. BL
   Between layers
7. BL
   Blowing (METAR)
8. BLD
   Build
9. BLDUP
   Buildup
10. BLKHLS
    Black Hills
11. BLKT
    Blanket
12. BLO
    Below
13. BLW
    Below
14. BLZD
    Blizzard
15. BM
    Bermuda
16. BM
    Monitor
17. BMS
    Basic Meteorological Services
18. BMU
    Bermuda
19. BND
    Bound
20. BNDRY
    Boundary

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