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.
Miami-Dade Online Academy 2017-2018 School Calendar. August 21, 2017 First Day of school October Testing for Re-takers, PSAT for 10th and 11th graders October 3rd Mandatory Face-to-Face Meeting for Grade 12th and Parents October 10th Mandatory Face-to-Face Meeting for 10th and 11th Graders and Parents October 20th is the 45 days first quarter