Most general aviation aircraft in the United States are registered to the FAA with respective tail numbers. The FAA allows for aircraft meeting certain weight, fuel, and airspeed requirements to be flown under Part 103 of the Federal Aviation Regulations (FAR). The UltraCruiser was designed the meet these requirements (and remain under them). Given that, the UltraCruiser can be easily constructed to be Part 103 compliant. This means, in short, that it may be flown without a pilot's license, medical certificate, or previous aircraft experience. The UltraCruiser was designed to be easy to fly, and many customers build one as their first ever aircraft. For more specific information on Part 103, please view the respective FAA regulations and advisory circulars.