Between September and October 2001, letters containing Bacillus anthracis were received by mail in several areas of the United States. As a result, CDC developed the following guidelines for recognizing and handling suspicious packages as a result. Although there have been no recent mail-related anthrax exposures, all persons should take appropriate steps to protect themselves and others from exposure to Bacillus anthracis by following these guidelines for recognizing and handling suspicious packages.

FBI Casework: Suspicious powders 101
04/20/04
SCENARIO: A suspicious white powder is discovered in a letter and is reported to the FBI.
Did you ever wonder ... what happens next?

• GSA
  How to Respond to an Anthrax Threat
• GSA
  Mail Communications Policy Office Mail Center Security Guide
• GSA Policy Advisory:
  National Guidelines for Assessing and Managing Biological Threats in Federal Mail Facilities