Who holds primary responsibility for operations on the active runways?

Local Control holds primary responsibility for operations on the active runways. This includes the safe and efficient management of aircraft movements, such as takeoffs and landings. Local Control is specifically tasked with the authority and situational awareness necessary to manage runway traffic, ensuring that aircraft are sequenced properly and that safety protocols are followed.

Other roles, such as Ground Control and the Operations Supervisor, have important functions related to overall airport operations and ground movements, but they do not directly oversee the active runways. Ground Control mainly manages taxiways and aircraft movement on the ground, while the Operations Supervisor focuses on broader operational oversight and management of resources, rather than direct control of runway activities. The Controller-in-Charge may have overall responsibility in some contexts, but the specific execution of runway operations falls to Local Control.