How did DHS determine COI as listed on the Release Toxics and Release Flammables list?
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: To identify the release chemicals for Appendix A, the Department looked to the list of substances in the EPA’s RMP rule.12 See Tables 1 and 2 to 40 CFR § 68.130 for release-toxics and Tables 3 and 4 to 40 CFR § 68.130 for release-flammables. The Department had included all of the EPA RMP substances in proposed Appendix A,13 and aside from the exceptions noted below, continues to do so in this final appendix. For release-toxics, the Department uses the same listing criteria, including the EPA acute toxicity criteria and vapor pressure cut-off, which can be found in EPA’s final rule, “List of Regulated Substances and Threshold for Accidental Release Prevention; requirements for Petitions Under Section 112(r) of the Clean Air Act as Amended.” See 59 FR 4478,
