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.
I took this info and cut and pasted it from the Florida Department of Education site. The start date listed here is 2012 but the law has not changed. Following this law would move the earliest start in 2013 to 8/19/13. If it helps any I have students in both Manatee and Sarasota schools both start 8/19/13.