Federal Communications Commission § 73.1730

writing, is signed by the licensees of ing daytime and until local sunset if the stations affected thereby and filed located west of the Class A station on in triplicate by each licensee with the the channel, or until local sunset at FCC in Washington, DC prior to the the Class A station if located east of time of the time of the proposed that station. Operation is also per- change. If time is of the essence, the mitted during nighttime hours not actual departure in operating schedule used by the Class A station or other may precede the actual filing of writ- stations on the channel. ten agreement, provided appropriate (b) No authorization will be granted notice is sent to the FCC. for: (d) If the license of an AM station au- (1) A new limited time station; thorized to share time does not specify (2) A limited time station operating the hours of operation, the station may on a changed frequency; be operated for the transmission of reg- (3) A limited time station with a new ular programs during the experimental transmitter site materially closer to period provided an agreement thereto the 0.1 mV/m contour of a co-channel is reached with the other stations with U.S. Class A station; or which the broadcast day is shared: And (4) Modification of the operating fa- further provided, Such operation is not cilities of a limited time station result- in conflict with § 73.72 (Operating during in increased radiation toward any ing the experimental period). Time- point on the 0.1 mV/m contour of a co- sharing agreements for operation dur- channel U.S. Class A station during the ing the experimental period need not hours after local sunset in which the be submitted to the FCC. limited time station is permitted to (e) Noncommercial educational FM operate by reason of location east of stations are authorized for share time the Class A station. operation according to the provisions (c) The licensee of a secondary sta- of § 73.561. tion which is authorized to operate [43 FR 45849, Oct. 4, 1978, as amended at 47 FR limited time and which may resume 40174, Sept. 13, 1982] operation at the time the Class A station (or stations) on the same channel § 73.1720 Daytime. ceases operation shall, with each appli- Operation is permitted during the cation for renewal of license, file in hours between average monthly local triplicate a copy of its regular oper- sunrise and average monthly local sun- ating schedule. It shall bear a signed set. notation by the licensee of the Class A (a) The controlling times for each station of its objection or lack of ob- month of the year are stated in the sta- jection thereto. Upon approval of such tion’s instrument of authorization. operating schedule, the FCC will affix Uniform sunrise and sunset times are its file mark and return one copy to specified for all of the days of each the licensee authorized to operate lim- month, based upon the actual times of ited time. This shall be posted with the sunrise and sunset for the fifteenth day station license and considered as a part of the month adjusted to the nearest thereof. Departure from said operating quarter hour. Sunrise and sunset times schedule will be permitted only pursu- are derived by using the standardized ant to § 73.1715 (Share time). procedure and the tables in the 1946 [56 FR 64872, Dec. 12, 1991] American Nautical Almanac issued by the United States Naval Observatory. § 73.1730 Specified hours. (b) [Reserved] (a) Specified hours stations must op- [43 FR 45849, Oct. 4, 1978] erate in accordance with the exact hours specified in their license. How- § 73.1725 Limited time. ever, such stations, operating on local (a) Operation is applicable only to channels, unless sharing time with Class B (secondary) AM stations on a other stations, may operate at hours clear channel with facilities authorized beyond those specified in their licenses before November 30, 1959. Operation of to carry special events programing. the secondary station is permitted dur- When such programs are carried during

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