What is one of the primary responsibilities of the Airspace Control Authority (ACA)?

The primary responsibility of the Airspace Control Authority (ACA) is to develop the Airspace Control Plan (ACP) for commander approval. This involves creating a comprehensive strategy that outlines how airspace will be managed during operations, ensuring deconfliction among various users of the airspace.

The ACP coordinates the use of airspace among different military branches and allied forces, which is crucial for effective mission execution and the safety of all air operations. The development of the ACP includes assessing air traffic, establishing control measures, and delineating airspace allocations to support various operations, thus facilitating seamless integration of air and ground activities.

Other options, while related to military operations, do not align with the distinct role of the ACA in airspace management. For example, establishing operational guidelines for ground troops pertains more to ground command structures, oversight of air-to-air combat missions falls under the purview of the air combat command structure, and controlling onboard aircraft navigation systems is typically the responsibility of pilots and flight operations rather than a command authority.