What must UAS pilots verify when approaching Class D airspace?

When approaching Class D airspace, UAS pilots must verify the operation of the control tower. Class D airspace is specifically designed around an airport with a control tower, and entry into this airspace is governed by the presence and operation of that control tower. For safety and effective communication, the UAS pilot needs to ensure that the control tower is active, as it will be providing air traffic control services to manage the flow of aircraft in the vicinity.

This verification is crucial because the control tower is responsible for coordinating all arriving and departing aircraft, and understanding whether it is operational will help the UAS pilot adhere to the necessary communication protocols and maintain situational awareness while flying in that area.