Which type of airspace allows for visual flight rules and exists alongside other classes of airspace?

Class G airspace is often referred to as uncontrolled airspace and is the only type of airspace that allows for visual flight rules (VFR) operations without any air traffic control (ATC) involvement. It is typically found beneath the base of controlled airspace and extends from the surface up to a specified altitude, which can vary depending on location. Pilots flying in Class G airspace must maintain their own separation from other aircraft, which is a key characteristic of VFR operations.

In contrast, other classes of airspace, such as Class A, require adherence to instrument flight rules (IFR) and are fully controlled by ATC. Class C and Class E airspace also have specific regulations concerning the operation of aircraft, primarily to ensure the safety of operations in congested areas and to accommodate IFR traffic. Hence, Class G airspace is unique in its allowance for VFR operations alongside more regulated airspace types.