The higher airspace is the volume of airspace above altitudes where the majority of air services are provided today (i.e. above around FL550,or 17 km altitude) ( EASA ) HAO are intended to hold both air transport and space operations, creating a need to provide management in a safe and efficient manner ICAO and other international aviation authorities, such as EASA , are already developing the guidelines andconcepts for managing High Airspace Operations (HAO) A roadmap for Higher Airspace Operations (HAO) involves global collaboration (ICAO, EASA, etc.) focusing on studies, regulatory sandboxes , and technology to manage future diverse, high-altitude flights (drones, 6G, Earth observation) safely, defining interfaces with space, and building new infrastructure/procedures for traffic management above traditional aviation levels (FL550+), requiring new safety, security, and environmental rules for this emerging ecosystem. Key Pillars of the Roadmap Regulatory Fr...