NOTAM

Transportation & Travel abbreviation · Aviation

NOTAM
Stands forNotice to Air Missions
CategoriesTransportation & Travel

NOTAM stands for Notice to Air Missions, an aviation abbreviation.

Time-critical notice about a change in the aviation system, such as a closed runway, an inoperative navigation aid, a crane near an approach path or a temporary flight restriction. Pilots must review the NOTAMs relevant to their flight before departure, and airline dispatch systems filter thousands each day.

Example: A NOTAM closed runway 4R for resurfacing from 0400Z to 1000Z, so arrivals were sent to 4L.

Usage notes

Originally expanded as "Notice to Airmen"; the FAA adopted the gender-neutral "Notice to Air Missions" in December 2021. On January 11, 2023, a damaged database file took down the FAA's NOTAM system and prompted the first nationwide ground stop since September 2001. Pronounced "NO-tam." Critics have long complained that important NOTAMs get buried among trivial ones.

More aviation abbreviations

  • MFD – Multi-function display
  • MRO – Maintenance, repair and overhaul
  • MSL – Mean sea level
  • MTOW – Maximum takeoff weight
  • MVFR – Marginal visual flight rules
  • NDB – Non-directional beacon
  • PAPI – Precision approach path indicator
  • PAX – Passengers
  • PFD – Primary flight display
  • PIC – Pilot in command
  • PIREP – Pilot report
  • POH – Pilot's operating handbook

See all 142 aviation abbreviations →