The US Coast Guard Navigation Center issued a Special Notice reminding the marine community that, beginning March 25, 2011, the Federal Communication Commission (FCC) has prohibited the manufacture, importation, sale, or installation of fixed mounted (non-portable) digital selective calling (DSC) equipped marine radios that do not meet the requirements of ITU-R Recommendation M.493-11 or higher, and in the case of Class D VHF DSC equipment only, IEC International Standard 62238. Therefore, after March 25, 2011, radios built to RTCM Standard SC-101 can no longer be manufactured, import, sold, or installed. However, previously installed radios meeting the older standard may continue to be used. (8/12/10)