What is prohibited in prohibited airspace?

Prohibited airspace is designated areas where all aircraft operations are completely restricted for safety and security reasons. This means that no flying is allowed in these zones, regardless of whether an aircraft has obtained clearance or not. Such restrictions are often established over sensitive installations, military bases, or other critical areas where flight could pose risks to national security or public safety.

While flying without a clearance is a violation in many airspaces, in prohibited airspace, it is simply not permitted to fly at all. The presence of prohibitions is a measure to mitigate risks and ensure the safety of operations in these sensitive areas. Other options related to altitude or specific types of aircraft operations are irrelevant in the context of prohibited airspace, as the overarching rule is the complete prohibition of all flight activity.