§  73.3538   Application to make changes in an existing station.

   Where prior authority is required from the FCC to make changes in an
   existing station, the following procedures shall be used to request
   that authority:

   (a) An application for construction permit using the forms listed in
   § 73.3533 must be filed for authority to:

   (1) Make any of the changes listed in § 73.1690(b).

   (2) Change the hours of operation of an AM station, where the hours of
   operation are specified on the license or permit.

   (3) Install a transmitter which has not been approved (type accepted)
   by the FCC for use by licensed broadcast stations.

   (4) Any change in the location, height, or directional radiating
   characteristics of the antenna or antenna system.

   (b) An informal application filed in accordance with § 73.3511 is to be
   used to obtain authority to modify or discontinue the obstruction
   marking or lighting of the antenna supporting structure where that
   specified on the station authorization either differs from that
   specified in 47 CFR part 17, or is not appropriate for other reasons.

   [ 44 FR 38495 , July 2, 1979, as amended at  44 FR 69935 , Dec. 5, 1979;  49 FR 4000 , Feb. 1, 1984;  52 FR 21685 , June 9, 1987;  62 FR 51063 , Sept.
   30, 1997;  66 FR 20758 , Apr. 25, 2001;  82 FR 57884 , Dec. 8, 2017]