Where is ADS-B Out required?

ADS-B Out is required in Class E airspace at or above 10,000 feet because this altitude falls within the regulatory framework established by the Federal Aviation Administration (FAA) for transponder and ADS-B performance requirements. The purpose of this requirement is to enhance surveillance capabilities for air traffic control, particularly in areas where a high volume of traffic exists, such as over densely populated regions, thereby improving situational awareness for both pilots and controllers.

In addition, this requirement contributes to the safety of flight operations by providing accurate position information to other aircraft equipped with ADS-B In technology, which is crucial for maintaining safe separation. While ADS-B Out is also required in other airspaces, such as Class A and Class B, the specific focus on Class E airspace at or above 10,000 feet is integral to the FAA's strategy for improving safety in the National Airspace System.