NASA releases initial concept of operations for high altitude airspace traffic management

News Research and Innovation
US National Aeronautical Space Agency (NASA) and Aeronautics Research Institute (NARI) have released an initial concept of operations and associated operational requirements for cooperative air traffic management in High Altitude Airspace (Upper E) Traffic Management (ETM).
Full story: https://www.unmannedairspace.info/emerging-regulations/nasa-releases-initial-concept-operations-for-high-altitude-airspace-traffic-management/