(70 ILCS 1855/2.8) (from Ch. 19, par. 452.8)
    Sec. 2.8. "Approach" means any path, course or zone defined by an ordinance of the District or by other lawful regulation, on the ground or in the air, or both, for the use of aircraft in landing and taking off from an airport located within the District.
(Source: Laws 1961, p. 2993.)