Understanding Notamify's NOTAM Categories: A Comprehensive Guide

Notamify defined 48 NOTAM Categories for each NOTAM. Notamify uses tuned large language models and full context of the NOTAM to accurately categorize each notice, ensuring pilots and operators can quickly find relevant information. Our system analyzes the complete NOTAM text, context, and relationships to determine the most appropriate category.

Update: We added a new Aerodrome subcategory, "Airport Operations", to better reflect airport-wide operational impacts and improve filtering for cases where the entire airport is affected. The category replaces the former "Airport Maintenance" subcategory.

1. Aerodrome

Aerodrome NOTAMs cover all aspects of airport operations and infrastructure. These are typically the most numerous NOTAMs at any given airport.

Subcategories:

• Airport Operations Examples soon.

• Runway Operations NOTAM example 1, NOTAM example 2

  Example: "RWY 27L/09R CLSD DUE TO MAINTENANCE"

• Taxiway Operations NOTAM example 1, NOTAM example 2

  Example: "TWY A RESTRICTED TO ACFT WITH WINGSPAN LESS THAN 36M"

• Taxiway Closure

  Example: "TWY N6 CLSD"

• Apron Operations NOTAM example 1, NOTAM example 2

  Example: "APRON 2 LIMITED PARKING DUE TO CONSTRUCTION"

• Lighting Systems NOTAM example 1, NOTAM example 2

  Example: "RWY 18 PAPI U/S"

• Fire and Rescue Services NOTAM example 1, NOTAM example 2

  Example: "ARFF CAT REDUCED TO CAT 7"

2. Airspace

Airspace NOTAMs detail changes and restrictions in controlled and uncontrolled airspace.

Subcategories:

• Airspace Restrictions NOTAM example 1, NOTAM example 2

  Example: "TEMPO RESTRICTED AREA ESTABLISHED"

• Airspace Changes NOTAM example 1, NOTAM example 2

  Example: "NEW CTR BOUNDARIES IMPLEMENTED"

• Flow Control NOTAM example 1, NOTAM example 2

  Example: "TRAFFIC FLOW RESTRICTION DUE TO MILITARY EXERCISE"

• Military Activity NOTAM example 1, NOTAM example 2

  Example: "MIL ACFT OPERATIONS BTN GND AND 3000FT"

• Special Use Airspace NOTAM example 1, NOTAM example 2

  Example: "DANGER AREA D123 ACTIVATED"

• Temporary Flight Restrictions NOTAM example 1, NOTAM example 2

  Example: "TFR IMPLEMENTED DUE TO VIP MOVEMENT"

3. Navigation

Navigation NOTAMs cover all aspects of air navigation services and procedures.

Subcategories:

• Navigation Aid Status NOTAM example 1, NOTAM example 2

  Example: "VOR/DME XYZ U/S"

• Instrument Landing Systems NOTAM example 1, NOTAM example 2

  Example: "ILS RWY 36 GP U/S"

• Approach Procedures NOTAM example 1, NOTAM example 2

  Example: "RNAV APPROACH RWY 27 NOT AVBL"

• Departure Procedures NOTAM example 1, NOTAM example 2

  Example: "NEW SID IMPLEMENTED FOR RWY 09"

• Route Changes NOTAM example 1, NOTAM example 2

  Example: "ATS RTE UL123 CLSD"

• Charts NOTAM example 1, NOTAM example 2

  Example: "NEW TERMINAL CHART PUBLISHED"

4. Communication

Communication NOTAMs relate to all aspects of air-ground communication and surveillance.

Subcategories:

• Radio Frequency Changes NOTAM example 1, NOTAM example 2

  Example: "TWR FREQ CHANGED TO 118.7"

• Communication Equipment Status NOTAM example 1, NOTAM example 2

  Example: "VHF STANDBY TRANSMITTER U/S"

• ATS Communication NOTAM example 1, NOTAM example 2

  Example: "ATC VOICE COMMUNICATION INTERRUPTED"

• RADAR Services

  Example: "PRIMARY RADAR U/S"

• Surveillance Systems NOTAM example 1, NOTAM example 2

  Example: "ADS-B COVERAGE DEGRADED"

5. Operations

Operational NOTAMs cover procedures and restrictions affecting flight operations.

Subcategories:

• Flight Procedures NOTAM example 1, NOTAM example 2

  Example: "LOW VISIBILITY PROCEDURES IN FORCE"

• Operating Restrictions NOTAM example 1, NOTAM example 2

  Example: "NOISE ABATEMENT PROCEDURES AMENDED"

• Search and Rescue NOTAM example 1, NOTAM example 2

  Example: "SAR EXERCISE IN PROGRESS"

• Emergency Services NOTAM example 1, NOTAM example 2

  Example: "EMERGENCY RESPONSE TIME INCREASED"

• UAS/Drone Operations NOTAM example 1, NOTAM example 2

  Example: "DRONE OPERATIONS WITHIN 3NM RADIUS"

• Special Operations NOTAM example 1, NOTAM example 2

  Example: "CALIBRATION FLIGHTS IN PROGRESS"

6. Obstacles

Obstacle NOTAMs warn of both temporary and permanent obstructions.

Subcategories:

• Construction Activity NOTAM example 1, NOTAM example 2

  Example: "NEW CONSTRUCTION CRANE HEIGHT 150FT"

• Temporary Obstacles NOTAM example 1, NOTAM example 2

  Example: "TEMPORARY MAST ERECTED"

• Crane Operations NOTAM example 1, NOTAM example 2

  Example: "MOBILE CRANE OPR UP TO 200FT AGL"

• Obstacle Lighting NOTAM example 1, NOTAM example 2

  Example: "OBST LIGHTS U/S ON TWR"

• Obstacle

  Example: "OBST ERECTED 250FT AGL"

7. Administrative

Administrative NOTAMs cover operational and organizational information.

Subcategories:

• NOTAM Management NOTAM example 1, NOTAM example 2

  Example: "TRIGGER NOTAM - NEW AIRAC CYCLE"

• Publication Updates NOTAM example 1, NOTAM example 2

  Example: "AIP SUPPLEMENT 01/24 PUBLISHED"

• Office Hours NOTAM example 1, NOTAM example 2

  Example: "AIS OFFICE HR CHANGED"

• Contact Information NOTAM example 1, NOTAM example 2

  Example: "NEW ATC SUPERVISOR CONTACT NUMBER"

• Checklists NOTAM example 1, NOTAM example 2

  Example: "MONTHLY NOTAM CHECKLIST PUBLISHED"

8. Weather

Weather-related NOTAMs include meteorological information and services.

Subcategories:

• Weather Services NOTAM example 1, NOTAM example 2

  Example: "METAR/TAF SERVICE INTERRUPTED"

• Weather Warnings NOTAM example 1, NOTAM example 2

  Example: "SEVERE TURBULENCE REPORTED"

• SNOWTAM NOTAM example 1, NOTAM example 2

  Example: "SNOWTAM 20241218 1242Z 20241218 1242Z 34 10 PCT 1/8IN DRY SN"

• Meteorological Equipment NOTAM example 1, NOTAM example 2

  Example: "RWY 36 RVR SYSTEM U/S"

9. Safety

Safety NOTAMs cover security measures and safety advisories.

Subcategories:

• Security Measures NOTAM example 1, NOTAM example 2

  Example: "ENHANCED SECURITY SCREENING IN EFFECT"

• Safety Advisories NOTAM example 1, NOTAM example 2

  Example: "CAUTION: WORK IN PROGRESS NEAR TWY C"

10. Other

Miscellaneous NOTAMs that don't fit into other categories.

Subcategories:

• Wildlife Hazards NOTAM example 1, NOTAM example 2

  Example: "INCREASED DEER ACTIVITY ON AIRFIELD"

• Bird Activity NOTAM example 1, NOTAM example 2

  Example: "BIRD CONCENTRATION VICINITY RWY 27"

Conclusion

Notamify's categorization system helps users quickly filter and find relevant NOTAMs for their operations. The Notamify categorization ensures that each NOTAM is properly classified, making briefings more efficient and reducing the risk of missing critical information.

For more information about how Notamify processes and categorizes NOTAMs, visit our API documentation or try our NOTAM search.