Controlled Airspace Law and Legal Definition

Controlled airspace is an aviation term used to describe airspace in which Aviation traffic controller has the authority to control air traffic, the level of which varies with the different classes of airspace. Controlled airspace usually exists in the immediate vicinity of busier airports, where aircraft used in commercial air transport flights are climbing out from or making an approach to the airport, or at higher levels where air transport flights would tend to cruise. Some countries also provide controlled airspace almost generally, however in most countries it is common to provide uncontrolled airspace in areas where significant air transport or military activity is not expected.