Homeland Security Advisory System Recommendations
The White House issued Homeland Security Directive-3, in March 2002, which established five threat conditions for possible terrorist attack:
Green = Low;
Blue = Guarded;
Yellow = Elevated;
Orange = High; and
Red = Severe.
General explanations were given for preparedness activities for each level, but these were intended mainly for government agencies.

American Red Cross:
Across the country questions of “What does a condition ‘yellow’ mean to me or my family?” or “What does this mean to a business or school?” remained. The American Red Cross recognized the need and developed a complementary set of guidelines for the following areas:
Individuals
Families
Neighborhoods
Schools
Businesses
And the complete set in Spanish.

U.S. Department of Homeland Security:
Preparing Makes Sense: Get Ready Now

U.S. Department of Homeland Security:
Be Informed – Biological Threat

U.S. Department of Homeland Security:
Be Informed – Chemical Threat

U.S. Department of Homeland Security:
Be Informed – Nuclear Blast

U.S. Department of Homeland Security:
Be Informed – Radiation Threat

U.S. Department of Homeland Security:
Be Informed – If There is an Explosion, If There is Fire, If You are Trapped in Debris

U.S. Department of Homeland Security:
Make a Plan: In a High-Rise Building

U.S. Department of Homeland Security:
Make a Plan: In a Moving Vehicle

Centers for Disease Control and Prevention:
Smallpox

Centers for Disease Control and Prevention:
Anthrax

California Department of Health Services:
Anthrax Fact Sheet
Also available in
Arabic
Armenian
Cambodian
Chinese
Farsi
Hmong
Korean
Laotian
Russian
Spanish
Tagalog and
Vietnamese.

California Department of Health Services:
Botulism Fact Sheet
Also available in
Arabic
Armenian
Cambodian
Chinese
Farsi
Hmong
Korean
Laotian
Russian
Spanish
Tagalog and
Vietnamese.

California Department of Health Services:
Chlorine Fact Sheet
Also available in
Arabic
Armenian
Cambodian
Chinese
Farsi
Hmong
Korean
Laotian
Russian
Spanish
Tagalog and
Vietnamese.

California Department of Health Services:
Isolation and Quarantine Fact Sheet
Also available in
Arabic
Armenian
Cambodian
Chinese
Farsi
Hmong
Korean
Laotian
Russian
Spanish
Tagalog and
Vietnamese.