US Air Force Collaborative Low-Altitude UAS Integration Effort (CLUE)

CLUE is a US Air Force Research Laboratory programme, run by its Information Directorate in Rome, New York, that develops a UAS traffic management system to integrate drone flights into the airspace of military installations. Started in 2016, it gives UAS operators, air traffic controllers and security forces air domain and situational awareness, and it is sensor-agnostic, so it can take in data from systems that detect, track and identify drones, including counter-UAS sensors. After a demonstration at MacDill Air Force Base in February 2022, Air Mobility Command and AFRL began a formal operational feasibility assessment there in May 2024, making MacDill the first Air Force installation to use UTM in airspace controlled by DoD air traffic controllers. In 2024 AFRL put the system at technology readiness level 7 to 8 and said it was seeking a programme office to take it on.