Which of the following is NOT a high-level airspace area?

The Western Control Area (WCA) is classified as a high-level airspace area specifically designated for high altitude flights. High-level airspace is generally defined as the airspace above FL 245 (24,500 feet) in most regions, and the WCA falls within this classification to accommodate aircraft that operate at high altitudes.

In contrast, the Southern Control Area (SCA), Arctic Control Area (ACA), and Northern Control Area (NCA) are all considered high-level airspace as well, supporting various flight operations in those regions. Each of these control areas facilitates the management and structure of air traffic for flights that require separation and oversight at high altitudes.

Understanding these distinctions helps pilots and air traffic controllers navigate efficiently in different regions, ensuring safety and effective route management for high-altitude aviation.