In accordance with the US Department of Homeland Security Appropriations Act the US Coast Guard announced on 7th January that it will terminate the transmission of all US Loran-C signals effective from 2000Z on 8th February 2010. At that time, the US Loran-C signal will be unusable and permanently discontinued. It is understood that this termination does not affect US participation in the Russian, American or Canadian Loran-C chains. US participation in these chains will continue temporarily in accordance with international agreements.