United States Department of Homeland Security - National Terrorism Advisory System. 1  In 2011, the Department of Homeland Security phased out the old Homeland Security Advisory System, replacing it with a two-level National Terrorism Advisory System. The system has two types of advisories: Alerts and Bulletins.
MIAMI-DADE COUNTY PUBLIC SCHOOLS TO RE-OPEN ON MONDAY, JAN. 7. All Miami-Dade County public schools and administrative offices will reopen on Monday, January 7, at their regularly scheduled times.
+Teachers new to Miami-Dade County Public Schools may opt to work one or two days, June 8, 9, 2015, in lieu of any one. or two of the following days: September 25, 2014, October 24, 2014, January 16, 2015March 20, , 2015, and April 3, 2015.