[Code of Federal Regulations] [Title 47, Volume 2] [Revised as of October 1, 2007] From the U.S. Government Printing Office via GPO Access [CITE: 47CFR73.3556] [Page 342-343] TITLE 47--TELECOMMUNICATION CHAPTER I--FEDERAL COMMUNICATIONS COMMISSION (CONTINUED) PART 73_RADIO BROADCAST SERVICES--Table of Contents Subpart H_Rules Applicable to All Broadcast Stations 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 [[Page 343]] 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 Aug. 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 Sept. 16, 1992.