PUBLIC NOTICE Federal Communications Commission 445 12th St., S.W. Washington, D.C. 20554 News Media Information 202 / 418-0500 Internet: http://www.fcc.gov TTY: 1-888-835-5322 DA 07-938 March 1, 2007 MEDIA BUREAU MODIFIES PRESUNRISE AND POSTSUNSET AUTHORIZATIONS FOR AM RADIO STATIONS As a result of the enactment of the US Energy Policy Act of 2005, Daylight Saving Time (“DST”) will begin on the second Sunday in March and end on the first Sunday in November. The earlier start date and later termination date for DST will impact all AM licensees operating pursuant to a Presunrise Service Authorization (“PSRA”) and/or a Postsunset Service Authorization (“PSSA”). This Public Notice provides guidance for affected licensees. These changes in DST hours require modification of all outstanding PSRA and PSSA authorizations, which are premised on assumptions regarding local time based upon the previous DST schedule. Continued operation pursuant to these legacy authorizations could result in impermissible interference. Accordingly, the Media Bureau, pursuant to Section 73.99(i) of the Commission's Rules (“Rules”), withdraws all PSRAs and PSSAs issued prior to February 1, 2007. This action is effective March 11, 2007. The Audio Division staff has recalculated the permissible presunrise and postsunset operating powers for all eligible AM stations, pursuant to Sections 73.99(e) and (j) of the Rules.1 Copies of the new PSRA and PSSA documents have been placed in each affected station's electronic correspondence folder. These documents can be accessed through the Commission's Consolidated Database System ("CDBS"). Licensees that elect to operate pursuant to PSSA or PSRA should download their new authorizations from CDBS at http://svartifoss2.fcc.gov/prod/cdbs/pubacc/prod/sta_sear.htm. After opening this link, a licensee should enter the station's call sign and press “Enter.” When the Search Results record appears, click on the “Click for Details” link. When the “Station Search Details” record opens, scroll down to the bottom of the record and click on “View Correspondence Folder.” The PSRA and/or PSSA are contained in the Imported Letters section of the station's correspondence folder. Click on the appropriate link(s); the associated authorization document will open in a separate window. Licensees can print copies of the authorizations from this window. A copy of the PSRA and/or PSSA instrument of authorization should be posted with the station's main license. Licensees that do not have computers capable of accessing the internet or that are otherwise unable to obtain their PSRA/PSSA authorizations from the website may request that a copy of their authorization be mailed to them by calling the phone number at the bottom of this Public Notice. Operation pursuant to 1 47 CFR §§ 73.99(e) and (j). PSRA and/or PSSA is not mandatory.2 Licensees that elect not to operate pursuant to PSRA/PSSA may disregard the authorizations issued for their stations. Licensees are reminded that, if a station is authorized for greater nighttime operating power than the value shown on the PSRA or PSSA, the licensed value takes precedence. Permissible powers for PSRA and PSSA operation have been calculated using the daytime antenna system. A licensee that is authorized to use an alternate antenna system during critical hours or nighttime and that plans to use such antenna system for PSRA and/or PSSA operations should contact the staff and request a recalculation. For additional information, contact Charles Miller, Susan Crawford, or Son Nguyen of the Audio Division at (202) 418-2700. By: Chief, Media Bureau - FCC - 2 See 47 CFR § 73.99(h).