air traffic controller
(1) “air traffic controller” or “controller” means a civilian employee of the Department of Transportation or the Department of Defense who, in an air traffic control facility or flight service station facility— (A) is actively engaged— (i) in the separation and control of air traffic; or (ii) in providing preflight, inflight, or airport advisory service to aircraft operators; or (B) is the immediate supervisor of any employee described in subparagraph (A); and
Source
5 USC § 2109(1)
Scoping language
None identified, default scope is assumed to be the parent (chapter 21) of this section.