This final rule revises the list of chemicals of interest, or COI, which the Department of Homeland Security (DHS or the Department) included as Appendix A to the Chemical Facility Anti-Terrorism Standards Interim Final Rule. Appendix A lists chemicals of interest and screening threshold quantities, or STQs. Any facility that possesses (or later comes into possession of) the listed chemicals in quantities that meet or exceed the STQ for any applicable security issue must complete and submit a Top-Screen. This will assist the Department in determining whether a facility presents a high level of security risk.
Agency Contact: Marybeth Kelliher, Chemical Security Compliance Division, Department of Homeland Security, 703-235-5263.
This rule is final. Its effective date is April 9, 2007.