Final answer:
When a restricted area is not active and has been released to the FAA, ATC allows aircraft to operate without restriction in that area, essentially treating it like uncontrolled airspace.
Step-by-step explanation:
If a restricted area is not active and has been released to the FAA, the Air Traffic Control (ATC) facility allows aircraft to operate in the restricted area without restriction. This means that when a restricted area is inactive, it is treated like any other uncontrolled airspace, allowing pilots to fly through these areas without needing to obtain a special clearance. However, it is always important for pilots to verify the status of a restricted area before entering, as conditions may change.