Who is referred to as the using agency in Special Use Airspace (SUA)?

The correct answer is the military unit utilizing that airspace. In the context of Special Use Airspace (SUA), the term "using agency" specifically refers to the organization or entity that is responsible for the management and usage of that designated airspace. For instance, military units often request and utilize SUA for various operations, including training missions, testing, or other activities that require the exclusion or restriction of civilian air traffic.

This designation is pivotal because it outlines who has the authority and responsibility for the activities conducted within that airspace. While the FAA manages air traffic and airspace overall, and ATC facilities provide air traffic services, it is the military unit that actively makes use of the airspace for their specific operations, thus making them the "using agency." The local flight school is not involved in the management of SUA and typically operates under different airspace regulations, which do not pertain to the control or designation of Special Use Airspace.