What is required for operations in class B, C, D airspace designated for an airport?

Operations in class B, C, and D airspace require air traffic control authorization because these airspaces are heavily regulated to ensure the safety and efficiency of all air traffic, including both manned and unmanned aircraft. These classes of airspace are typically located around major airports where there is a high volume of aircraft operations.

In this context, obtaining air traffic control authorization means that the operator must communicate with air traffic control to receive permission before entering that airspace. This ensures that unmanned aerial systems (UAS) can operate safely without interfering with manned aircraft, which are often in close proximity to the airport.

While having a remote pilot certification, a weather briefing, and maintaining visual line of sight are important factors for the operation of a UAS, they do not fulfill the specific requirement imposed by regulations for operations in these controlled airspaces. Air traffic control authorization is the key legal necessity to proceed safely in those environments.