π Autonomous Systems NASAβs Unmanned Aircraft Systems Integration in the National Airspace System (UAS in the NAS) began in 2011 & ended in Sept 2020. It identified, developed & tested tech & procedures to help make it possible for UAS to have routine access to the NAS.https://t.co/5R6H8AKoBY— NASA Armstrong (@NASAArmstrong) November 17, 2020