Why were security issues listed in the Final Appendix A?
For more information on this topic, please reference the Appendix to Chemical Facility Anti-Terrorism Standards; Final Rule http://www.dhs.gov/xlibrary/assets/chemsec_appendixafinalrule.pdf (PDF, 41 pages – 4.25 MB). Referenced Text: This additional information provides guidance to regulated entities, so that they better understand how to use the appendix, and it explains the Department’s rationale(s) for including these chemicals, at these STQs, on the list.
