What is the STQ for Chlorine where it presents a theft/diversion-WME security issue?
DHS developed a unique approach for chlorine where it presents a theft/diversion-WME security issue. DHS established an STQ for chlorine as a theft/diversion-WME at 500 pounds. The minimum concentration for chlorine that presents a theft-WME security issue is 9.77%. Referenced Text: Additional information on the treatment of chlorine under CFATS can be found in the preamble to Appendix A to CFATS at 72 FR 65407.