Which airspace is defined as an airspace of defined dimensions within which ATC service is provided to IFR and VFR flights in accordance with the airspace classification?

• A. Uncontrolled airspace
• B. Controlled airspace
• C. Special use airspace
• D. Sully airspace

Answer: (B)

Controlled airspace is the airspace that has defined lateral and vertical boundaries where air traffic control provides service to both IFR and VFR flights according to the class of airspace. This structure ensures orderly, safe traffic flow by offering IFR separation and appropriate ATC guidance to VFR traffic as applicable to each class. In contrast, uncontrolled airspace does not provide ATC separation, special use airspace is designated for specific activities with restrictions, and “Sully airspace” isn’t a recognized term.