Homeland Security Advisory System
Current Threat Level
August 10, 2006 – The United States Government is raising the nation’s threat level for the aviation sector to:
- Code Red or Severe for flights originating in the United Kingdom bound for the United States
- Code Orange or High for all commercial aviation operating in or destined for the United States.
- The rest of the country remains at Code Yellow.
there is no indication of plotting within the United States. We believe
the arrests of extremists engaged in a substantial plot to destroy
multiple passenger aircraft flying from the United Kingdom to the
United States have significantly disrupted the threat, but we cannot be
sure that the threat has been entirely eliminated or the plot
Consistent with these higher threat
levels, the Transportation Security Administration is implementing
changes to airport screening procedures to include:
- No liquids or gels of any kind will be permitted in carry-on baggage. Items must be in checked baggage.
Exception: baby formula, breast milk, or juice if a baby or small child
is traveling; prescription medicine, insulin and essential other
Travelers should also anticipate additional security measures within the airport and at screening checkpoints.
More detailed information available at TSA.gov.
All Americans, including those traveling in the transportation systems, should ...
continue to be vigilant, take notice of their surroundings, and
report suspicions items or activities to local authorities immediately.
Everybody should establish an emergency preparedness kit
as well as a communications plan for themselves and their family, and
stay informed about what to do during an emergency situation.
Learn More About Preparedness
About the Homeland Security Advisory System
Homeland Security Advisory System is designed to target our protective
measures when specific information to a specific sector or geographic
region is received. It combines threat information with vulnerability
assessments and provides communications to public safety officials and
Homeland Security Threat Advisories contain
actionable information about an incident involving, or a threat
targeting, critical national networks or infrastructures or key assets.
They could, for example, relay newly developed procedures that, when
implemented, would significantly improve security or protection. They
could also suggest a change in readiness posture, protective actions,
or response. This category includes products formerly named alerts,
advisories, and sector notifications. Advisories are targeted to
Federal, state, and local governments, private sector organizations,
and international partners.
Homeland Security Information Bulletins
communicate information of interest to the nation’s critical
infrastructures that do not meet the timeliness, specificity, or
significance thresholds of warning messages. Such information may
include statistical reports, periodic summaries, incident response or
reporting guidelines, common vulnerabilities and patches, and
configuration standards or tools. It also may include preliminary
requests for information. Bulletins are targeted to Federal, state,
and local governments, private sector organizations, and international
Color-coded Threat Level System
is used to communicate with public safety officials and the public
at-large through a threat-based, color-coded system so that protective
measures can be implemented to reduce the likelihood or impact of an
attack. Raising the threat condition has economic, physical, and
psychological effects on the nation; so, the Homeland Security Advisory
System can place specific geographic regions or industry sectors on a
higher alert status than other regions or industries, based on specific
>> Citizen Guidance on the Homeland Security Advisory System (PDF - 1 page, 132 KB) Download this one-page guide with recommended actions for each level. Developed with input from the American Red Cross. (link to an external site)
>> Guidance for federal departments and agencies
More on DHS.Gov