Which type of NOTAM provides data requiring wide dissemination?

The type of NOTAM that provides data requiring wide dissemination is the D NOTAM. D NOTAMs contain information that is essential for the safety of flight and is pertinent to all aircraft navigating in a specific area. This includes details about changes in navigation aids, changes to airspace, or other significant changes to facilities and procedures that pilots need to be aware of.

The widespread dissemination of D NOTAMs is critical for ensuring that all useful and necessary information reaches pilots who may be operating in various regions, thereby promoting safety and situational awareness.

While FDC NOTAMs also provide important regulatory information, they are often more specialized and pertain specifically to flight operations requiring strict adherence without the necessity for broad awareness. GPS NOTAMs focus on the accuracy and availability of GPS navigation. Special Use NOTAMs are designated for alerting users about specific airspace use, which may not affect a broader audience to the same extent. Therefore, D NOTAMs are uniquely positioned to serve the need for wide dissemination among all aviation stakeholders.