CFR›Title 6›Chapter I›Part 27 ContainsSubpart A; Appendix A; Subparts B–DCorpusDaily eCFRDisplayed edition2026-04-24Last updated2026-04-24 PART 27—CHEMICAL FACILITY ANTI-TERRORISM STANDARDS Contents A Subpart A—General Sections 27.100–27.125 Appendix A to Part 27 Appendix A to Part 27—DHS Chemicals of Interest B Subpart B—Chemical Facility Security Program Sections 27.200–27.255 C Subpart C—Orders and Adjudications Sections 27.300–27.345 D Subpart D—Other Sections 27.400–27.410 Authority6 U.S.C. 624; Pub. L. 101-410, 104 Stat. 890, as amended by Pub. L. 114-74, 129 Stat. 599; Pub. L. 113-254, 128 Stat. 2898, as amended by Pub. L. 116-150, 134 Stat. 679.Source72 FR 17729, Apr. 9, 2007, unless otherwise noted. Previous 25 Part 25—Regulations to Support Anti-Terrorism by Fostering Effective Technologies Next 29 Part 29—Protected Critical Infrastructure Information