For the purpose of this subpart, the following definition applies:
Locally produced programming is programming produced within the predicted noise-limited contour (see§ 73.619(c) ) of a Class A station broadcasting the program or within the contiguous predicted noise-limited contours of any of the Class A stations in a commonly owned group.
47 C.F.R. §73.6000
See Report and Order, In the Matter of Establishment of a Class A Television Service, MM Docket No. 00-10, released April 4, 2000; Memorandum Opinion and Order on Reconsideration, In the Matter of Establishment of a Class A Television Service, MM Docket No. 00-10, released April 13, 2001; Report and Order, In the Matter of Elimination of Main Studio Rule, MB Docket No. 17-106, released October 24, 2017.