NOTAM Contractions Abbreviations and Acronyms

1. O
   Observation
2. O
   Operate
3. O
   Original
4. O
   Over
5. SSR
   Secondary Surveillance Radar
6. B/C
   British Columbia
7. SIR
   Packed or Compacted Snow and Ice on Runway(s)
8. SIR
   Snow and Ice on Runway
9. G
   Gusts Reaching (knots) (weather reports only)
10. Int'l
    International
11. INTL
    International
12. H2O
    Water
13. INV
    inversion
14. MIRL
    Medium Intensity Runway Lights
15. COMM
    Communications
16. COMMS
    Communications
17. CONT
    Control
18. INST
    Instrument
19. INSTR
    Instrument
20. INTNL
    International

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