In which situation must a Remote Pilot not operate a UAS?

A Remote Pilot must not operate a UAS when they are under the influence of drugs or alcohol because this directly compromises their ability to safely control the aircraft. Operating under the influence impairs judgment, reaction times, and overall situational awareness, which are critical for the safe operation of any flight. The Federal Aviation Administration (FAA) regulations strictly prohibit operating any aircraft, including unmanned aircraft systems, while impaired by substances that can affect cognitive capabilities and physical coordination. This is a fundamental safety concern to prevent accidents and ensure the well-being of both the operator and those on the ground.

Other situations, such as monitoring air traffic or operating in controlled airspace, typically have procedures and regulations that a pilot must follow, which means they can still operate a UAS in those circumstances, provided they comply with all relevant guidelines. Operating in inclement weather may not necessarily prohibit flight but requires the pilot to assess whether conditions are within safe limits for flight operations.