National Terrorism Advisory System

E28847

The National Terrorism Advisory System is the United States’ official public warning framework that communicates current terrorism threats and recommended protective actions to government agencies, organizations, and the general public.


Statements (47)
Predicate Object
instanceOf public warning system
terrorism alert system
abbreviation NTAS
alertDuration Bulletins may be extended or updated
specified end date for Elevated and Imminent Alerts
announcedBy Janet Napolitano
appliesTo federal government agencies
general public
private sector organizations
state and local government agencies
canBeUpdatedBy Secretary of Homeland Security
communicationChannel DHS website
email and subscription services
news media
social media
component Bulletin
Elevated Alert
Imminent Alert
country United States
designGoal provide more detailed and specific threat information than color codes
reduce public confusion about terrorism alerts
focus credible terrorism threats
domestic and international terrorism threats affecting the U.S.
inception 2011
includesInformationOn geographic areas potentially affected
how the government is responding
nature of the threat
recommended protective measures
jurisdiction United States homeland
language English
legalBasis Homeland Security Act authorities
managedBy Secretary of Homeland Security
operator DHS Office of Public Affairs
U.S. Department of Homeland Security
precededBy color-coded Homeland Security Advisory System
purpose communicate current terrorism threats
provide recommended protective actions
reform 2015 expansion to cover homegrown violent extremism
2015 update to add Bulletin format
replaced Homeland Security Advisory System
replacedBy none
status active
targetAudience U.S. residents
critical infrastructure operators
law enforcement partners
travelers in the United States
website https://www.dhs.gov/ntas

Referenced by (1)
Subject (surface form when different) Predicate
United States Department of Homeland Security
overseesProgram

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