The document discusses the integration of unmanned aircraft systems (UAS) into the national airspace system (NAS) in the United States. It notes that significant increases in UAS operations are inevitable and that routine access to civil airspace is necessary to fulfill their operational and economic potential. It outlines the establishment of RTCA Special Committee 203 to develop standards to ensure the safe operation of UAS in the NAS, including standards for command and control systems and sense and avoid systems. The committee aims to support the industry's and government's goal of operating UAS safely in the NAS while maintaining safety and efficiency.