Definition
One of a small number of FAA-designated geographic areas where unmanned aircraft systems can be flown for research, testing, and evaluation purposes under special authorization. These sites operate under FAA oversight and are used to gather data on UAS operations, integration into the National Airspace System, and safety procedures.
Plain English
An official location set up by the FAA where drones and other unmanned aircraft can be flown legally for testing and research, with special permissions that don't apply elsewhere.
Context Anchor
Seen in FAA material, flight planning, and aviation notices that describe areas where unmanned aircraft testing may be taking place.
Derivation
UAS stands for Unmanned Aircraft System. "Test site" simply means a designated place for testing. The combined term highlights that these are specific, sanctioned locations -- not just anywhere a drone happens to fly.
Why Pilots Care
Pilots must be aware of these sites to check NOTAMs and avoid unexpected UAS activity or temporary flight restrictions in the vicinity.
Intuition Check
Do not read “test site” as just any open field where someone tries out a drone. In FAA use, a UAS Test Site is an officially designated testing location or program with approved procedures.
Example Sentence 1
The university operates one of the FAA-designated UAS Test Sites and conducts regular flights to study how drones interact with crewed aircraft traffic.
Example Sentence 2
UAS Test Sites allow safe evaluation of new drone technologies under FAA-approved conditions.