Which facility has search and rescue responsibility for aircraft operating under a special VFR clearance?

The facility responsible for search and rescue operations for aircraft operating under a special VFR clearance is the Air Route Traffic Control Center (ARTCC). This is because ARTCC is tasked with managing high-altitude air traffic and provides services to aircraft flying on Instrument Flight Rules, as well as those operating under special VFR.

When an aircraft is under a special VFR clearance, it may be flying in conditions where visibility is reduced, making it necessary for more intensive oversight and coordination. The ARTCC maintains constant communication with the aircraft, ensuring that they can effectively coordinate any necessary search and rescue efforts should an emergency arise. Their extensive radar and communication capabilities allow them to oversee wide areas and support rescue operations efficiently.

In contrast, other facilities such as Flight Service Stations (FSS) primarily offer pre-flight services and do not have active responsibilities for search and rescue. Rescue Coordination Centers (RCC) also play a role in search and rescue, but they usually coordinate efforts rather than directly monitor aircraft in flight. Towers, while they manage traffic in the immediate vicinity of airports, do not have the scope or resources to handle search and rescue for aircraft operating under special VFR outside their controlled airspace.

Hence, the ARTCC is the correct answer for search