The two categories of airspace are: regulatory and non-regulatory. Within these two categories there are four types: controlled, uncontrolled, special use, and other airspace. Controlled airspace is a generic term that covers the different classifications of airspace and defined dimensions within which air traffic control (ATC) service is provided in accordance with the airspace classification. Uncontrolled airspace is not controlled by the ATC, but pilots should remember there the visual flight rules (VFR) minimums and comply them. Special use airspace is the designation for airspace in which certain activities must be confined, or where limitations may be imposed on aircraft operations that are not part of those activities.
Aeronautical Chart User's Guide Airspace Chart
AIM Ch-03
PHAK Ch-14 (01)
91.126,
91.127,
91.129,
91.130,
91.131,
91.133,
91.135
91.155
91.157
Private Pilot PTS Page 33
Commercial Pilot PTS Page
33
