Sec.  73.3556   Duplication of programming on commonly owned or time brokered
stations.

   (a) No commercial AM or FM radio station shall operate so as to devote more
   than 25 percent of the total hours in its average broadcast week to programs
   that duplicate those of any station in the same service (AM or FM) which is
   commonly owned or with which it has a time brokerage agreement if the
   principal community contours (predicted or measured 5 mV/m groundwave for AM
   stations and predicted 3.16 mV/m for FM stations) of the stations overlap
   and the overlap constitutes more than 50 percent of the total principal
   community contour service area of either station.

   (b) For purposes of this section, duplication means the broadcasting of
   identical programs within any 24 hour period.

   (c) Any party engaged in a time brokerage arrangement which conflicts with
   the requirements of paragraph (a) of this section on September 16, 1992,
   shall bring that arrangement into compliance within one year thereafter.

   [ 57 FR 18093 , Apr. 29, 1992, as amended at  57 FR 42706 , Sept. 16, 1992]

   Effective Date Note:   At  57 FR 18093 , Apr. 29, 1992,  Sec. 73.3556 was added,
   effective August 1, 1992. At  57 FR 35763 , Aug. 11, 1992, the effective date
   was deferred pending action by the agency. At  57 FR 37888 , Aug. 21, 1992,
   the effective date was further deferred. At  57 FR 42706 , Sept. 16, 1992,
   paragraph (a) was revised and paragraph (c) was added, effective September
   16, 1992.