Which NOTAM type is missing from the list that includes aerodrome NOTAM, CZNB NOTAM, National NOTAM, and Local NOTAM?

• A. Provincial NOTAM
• B. Flight information region NOTAM
• C. Special Use Airspace NOTAM
• D. Emergency NOTAM

Answer: (B)

Notams are grouped by how far their impact reaches. Aerodrome NOTAMs apply to a single airport, Local NOTAMs cover a defined local area around that airport, National NOTAMs convey information at a country-wide level, and CZNB NOTAMs refer to a specific location code within a country’s system. The one that’s missing from this set is a Flight Information Region NOTAM, which covers information that affects flight operations across an entire FIR—the larger airspace region managed by an FIR authority and spanning multiple airports. This type is distinct from the others because it isn’t tied to a single aerodrome or a local/national scope, but to a broader, regional airspace area. Emergency NOTAMs aren’t a standard geographic category, and Special Use Airspace NOTAMs pertain to specific airspace designations rather than a general regional scope. So the best answer is the Flight Information Region NOTAM.