Question

What class airspace does not require approval before entering

Answer 1

Class G

Step-by-step explanation:

All other airspace under 14,500 feet and is uncontrolled airspace. Class G Airspace does not require any authorization to fly in, assuming there are no TFR's or other special restrictions.

Answer 2

Class G airspace is uncontrolled and does not require prior approval before entry, unlike controlled airspace classes A, B, C, D, and E.

Step-by-step explanation:

The class of airspace that does not require approval before entering is Class G. Class G is uncontrolled airspace where air traffic control (ATC) does not provide services, and communications with ATC are not required for VFR (Visual Flight Rules) flights. Pilots are responsible for seeing and avoiding other aircraft and flying with caution. Contrastingly, airspace classes A, B, C, D, and to some extent E typically require communication with ATC and sometimes clearance before entry.