Which of the following is NOT a type of NOTAM?

The correct understanding revolves around the types of NOTAMs, which are notifications used in aviation to provide essential information about the status of facilities, hazards, or services affecting flight operations.

FDC NOTAMs relate to changes in regulations, procedures, and other critical information that affect the National Airspace System. Local NOTAMs highlight information relevant to a specific airport or area, often including temporary changes that pilots operating in that vicinity should be aware of. Distant NOTAMs are those that pertain to information that might affect operations across a broader area or in different regions, but still within the context of their relevance to flight operations.

In contrast, while the term 'Urgent NOTAM' might suggest a type of notification, it is not an officially recognized category of NOTAM. While certain NOTAMs can indeed be urgent, this urgency is not a defining classification of a NOTAM type, rather it reflects the importance or immediate nature of the information being conveyed. Thus, distinguishing between recognized categories helps clarify what pilots need to look for when scanning NOTAMs before flights.