Integration of certified new entrants - unmanned aircraft very low level operations (including Remotely Piloted Aircraft Systems)

The integration of certified new entrants operating at very low level (typically below 500ft AGL:) a) saturation of frequency spectrum b) loss of communication / control (malfunction) c) loss of communication / control (cyber attack) d) airspace congestion resulting in operational /safety impacts to commercial aviation e) noise impacts resulting in operational restrictions for manned aviation