Nitrosyl chloride Sulfuryl chloride Nitrotriazolone [o-Ethyl-N-N-dimethylphorphoramido-cyanidate] Nonyltrichlorosilane Tellurium hexafluoride Chemicals of Octadecyltrichlorosilane Tetrafluoroethylene [Ethene, tetrafluoro] Octolite Tetramethyllead [Plumbane, tetramethyl-] Octonal [, tetramethyl-] Octyltrichlorosilane Tetranitroaniline Interest (COI) Listed (Fuming ) Tetranitromethane [, tetranitro-] difluoride Tetrazene [Guanyl nitrosaminoguanyltetrazene] 1,3-Pentadiene 1-H Tetrazole Pentane Thiodiglycol [Bis(2-hydroxyethyl)] in Appendix A 1- Pentene 2-Pentene, (E)- Titanium tetrachloride [Titanium chloride (TiCl4) (T-4)-] 2-Pentene, (Z)- TNT [Trinitrotoluene] Pentolite Torpex [Hexotonal] Peracetic acid [Ethaneperoxic acid] Trichlorosilane [Silane, trichloro-] Perchloromethylmercaptan [Methanesulfenyl chloride, Triethanolamine Chemical Facility trichloro-] Triethanolamine hydrochloride Perchloryl fluoride Triethyl phosphite PETN [Pentaerythritol tetranitrate] Trifluoroacetyl chloride Anti-Terrorism Standards Phenyltrichlorosilane Trifluorochloroethylene [Ethene, chlorotrifluoro] Trimethylamine Phosgene [Carbonic dichloride] or [carbonyl dichloride] [Methanamine, N,N-dimethyl-] Trimethylchlorosilane [Silane, chlorotrimethyl-] (CFATS) Trimethyl phosphite Phosphorus oxychloride [Phosporyl chloride] Trinitroaniline Phosphorus pentabromide Trinitroanisole Trinitrobenzene Phosphorus pentasulfide Trinitrobenzenesulfonic acid Securing America's Highest-Risk Phosphorus trichloride Trinitrobenzoic acid Picrite [Nitroguanide] Trinitrochlorobenzene Chemical Infrastructure Piperidine Trinitrofluorenone Potassium chlorate Trinitro-meta-cresol Trinitronaphthalene Potassium Trinitrophenetole Potassium perchlorate Trinitrophenol December 2017 Potassium permanganate Trinitroresorcinol Potassium Tritonal Propadiene [1,2-Propadiene] Tungsten hexafluoride Propane Vinyl acetate monomer [ ethynl ] [Propanenitrile] Vinyl [1-Buten-3-yne] A facility must report to DHS any possession of Propyl chloroformate [Carbonchloridic acid, propylester] Vinyl chloride [Ethene, chloro-] Appendix A chemicals of interest at or above the Propylene [1-] Vinyl ethyl ether [Ethene, ethoxy-] Propylene [Oxirane, methyl-] Vinyl fluoride [Ethene, fluoro] screening threshold quantity (STQ). To get Propyleneimine [Aziridine, 2-methyl] Vinyl methyl ether [Ethene, methoxy-] Propylphosphonothioic dichloride started, visit www.dhs.gov/publication/appendix- Propylphosphonyl difluoride Vinylidene chloride [Ethene, 1,1-dichloro] final-rule to view Appendix A. Propyltrichlorosilane Vinylidene fluoride [Ethene, 1,1-difluoro] [1-Propyne] Vinyltrichlorosilane QL [o-Ethyl-o-2-diisopropylaminoethyl VX[o-Ethyl-S-2-diisopropylaminoethylmethyl phosphonothiolate] methylphosphonite] Zinc hydrosulfide [Zinc dithionite] RDX [Cyclotrimethylenetrinitramine] RDX and HMX mixtures [o-Isopropyl methylphosphonofluoridate] Selenium hexafluoride Disclaimer: The information presented in this brochure Sesquimustard [1,2-Bis(2-chloroethylthio)ethane] is intended as a compliance assistance tool only, and Silane tetrachloride is not a substitute for Appendix A of the CFATS Silicon tetrafluoride regulation (6 CFR part 27). For a complete azide understanding of all legal requirements of the CFATS Sodium chlorate For more information, contact the CFATS Help Desk program, please refer to the applicable federal Sodium hydrosulfite [Sodium dithionite] 1-866-323-2957 or [email protected] statutes and regulations, which are available at Sodium nitrate www.dhs.gov/chemical-security-laws-and-regulations Sodium phosphide [o-Pinacolyl methylphosphonofluoridate] U.S. Department of Homeland Security Stibine Office of Infrastructure Protection Strontium phosphide Infrastructure Security Compliance Division dioxide (anhydrous) Mail Stop 0610 [Sulfur fluoride (SF4), (T-4)-] 245 Murray Lane, Building 410 Washington, D.C. 20528

to the applicable federal which are available at security-laws-and-regulations Chromium oxychloride Hydrazine cyanohydrin, stabilized Crotonaldehyde [2-Butenal] Hydrochloric acid (conc. 37% or greater) Acetyl bromide Crotonaldehyde, (E)- [2 Butenal], (E)-] Hydrocyanic acid Acetyl chloride [Ethanedintrile] (conc. 50% or greater) Acetyl iodide Acetylene [Ethyne] Cyclohexylamine [Cyclohexanamine] (anhydrous) [2-Propenal] or Acrylaldehyde Cyclohexyltrichlorosilane (anhydrous) [2-Propenenitrile] [Hydrocyanic acid] Acrylyl chloride [2-Propenoyl chloride] DF [Methyl phosphonyl difluoride] (anhydrous) Allyl alcohol [2-Propen-1-ol] Diazodinitrophenol , anhydrous Allylamine [2-Propen-1-] Diborane (concentration of at least 35%) Allyltrichlorosilane, stabilized Dichlorosilane [Silane, dicholoro-] Aluminum (powder) N,N-(2- diethylamino)ethanethiol Aluminum bromide, anhydrous Diethyldichlorosilane Iodine pentafluoride Aluminum chloride, anhydrous o,o-Diethyl S-[2- (diethylamino)ethyl] phosphorothiolate , pentacarbonyl- [Iron carbonyl (Fe (CO)5), (TB5-11)-] Aluminum phosphide Diethyleneglycol dinitrate Isobutane [Propane, 2-methyl] (anhydrous) Diethyl methylphosphonite Isobutyronitrile [Propanenitrile, 2-methyl-] Ammonia (conc. 20% or greater) N,N-Diethyl phosphoramidic dichloride Isopentane [Butane, 2-methyl-] nitrate N,N-(2-diisopropylamino)- ethanethiol [N,N- Isoprene [1,3-Butadiene, 2-methyl-] Ammonium nitrate, solid diisopropyl-(beta)-aminoethane thiol Isopropyl chloride [Propane, 2-chloro-] Ammonium perchlorate Difluoroethane [Ethane, 1,1,-difluoro-] Isopropyl chloroformate [Carbonochloridic acid, 1- Ammonium picrate N,N-Diisopropyl phosphoramidic dichloride methylethyl ester] Amyltrichlorosilane 1,1-Dimethylhydrazine [Hydrazeine, 1, 1-dimethyl-1] Isopropylamine [2-Propanamine] Antimony pentafluoride Dimethylamine [Methanamine, N-methyl-] Isopropylphosphonothioic dichloride Arsenic trichloride [Arsenous trichloride] N,N-(2- dimethylamino)ethanethiol Isopropylphosphonyl difluoride Arsine Dimethyldichlorosilane [Silane, dichlorodimethyl-] azide Barium azide N,N-Dimethyl phosphoramidic dichloride Lead styphnate [Lead trinitroresocinate] 1,4-Bis(2-chloroethylthio)- n-butane [Dimethylphosphoramido-dichloridate] Lewisite 1 [2-Chlorovinyldichloroarsine] Bis(2- chloroethylthio)methane 2,2-Dimethylpropane [Propane, 2,2-dimethyl-] Lewisite 2 [Bis(2-chlorovinyl)chloroarsine] Bis(2- chloroethylthiomethyl)ether Dingu [Dinitroglycoluril] Lewisite 3 [Tris(2-chlorovinyl)arsine] 1,5-Bis(2-chloroethylthio)- n-pentane Dinitrogen tetroxide Lithium amide 1,3-Bis(2-chloroethylthio)- n-propane Dinitrophenol Lithium nitride Boron tribromide Dinitroresorcinol Magnesium (powder) Boron trichloride [Borane, trichloro] Diphenyldichlorosilane Magnesium diamide Boron trifluoride [Borane, trifluoro] Dipicryl sulfide Magnesium phosphide Boron trifluoride compound with methyl ether (1:1) Dipicrylamine [or] Hexyl [Hexanitrodiphenylamine] MDEA [Methyldiethanolamine] Bromine N,N-(2- dipropylamino)ethanethiol Mercury fulminate Bromine chloride N,N-Dipropyl phosphoramidic dichloride Methacrylonitrile [2-Propenetrile, 2-methyl-] Bromine pentafluoride Dodecyltrichlorosilane Methane Bromine trifluoride Epichlorohydrin [Oxirane, )chloromethyl)-1] 2-Methyl-1-butene Bromotrifluorethylene [Ethene, bromotrifluoro] Ethane 3-Methyl-1-butene 1,3-Butadiene Ethyl acetylene [1-Butyne] Methyl chloride [Methane, chloro-] Butane Ethyl chloride [Ethane, chloro-] Methyl chloroformate [Carbonochloridic acid, methyl ester] Butene Ethyl ether [Ethane, 1,1-oxybis-] Methyl ether [Methane, oxybis-] 1-Butene Ethyl mercaptan [Ethanethiol] 2-Butene [ Methyl ester] Ethyl [Nitrous acide, ethyl ester] Methyl hydrazine [Hydrazine, methyl-] 2-Butene-cis Ethyl phosphonyl difluoride [Methane, isocyanato-] 2-Butene-trans [2-Butene, (E)] Ethylamine [Ethanamine] Methyl mercaptan [] Butyltrichlorosilane Ethyldiethanolamine Methyl [, methyl ester] Calcium hydrosulfite [Calcium dithionite] [Ethene] [Methanamine] Calcium phosphide [Oxirane] Methylchlorosilane Carbon Ethylenediamine [1,2-Ethanediamine] Methyldichlorosilane Carbon oxysulfide [Carbon oxide sulfide; ] Ethyleneimine [Aziridine] Methylphenyldichlorosilane Carbonyl fluoride Ethylphosphonothioic dichloride Methylphosphonothioic dichloride Carbonyl sulfide Ethyltrichlorosilane 2-Methylpropene [1-Propene, 2-methyl-] Chlorine Chlorine dioxide [Chlorine oxide, Cl02] Methyltrichlorosilane [Silane, trichloromethyl-] Fluorosulfonic acid Sulfur mustard (Mustard gas (H)) [Bis(2-chloroethyl)sulfide] Chlorine monoxide [Chlorine oxide] (solution) Chlorine pentafluoride O-Mustard (T) [Bis(2-chloroethylthioethyl)ether] Furan Nickel Carbonyl Chlorine trifluoride Chloroacetyl chloride [ oxide (NO)] 2-Chloroethylchloro-methylsulfide Guanyl nitrosaminoguanylidene hydrazine Chloroform [Methane, trichloro] Nitrobenzene Hexaethyl tetraphosphate and compressed gas mixtures 5-Nitrobenzotriazol Chloromethyl ether [Methane, oxybis(chloro-)] Hexafluoroacetone Chloromethyl methyl ether (Methane, chloromethoxy-] Nitrocellulose Hexanitrostilbene Nitrogen mustard hydrochloride [Bis(2-chloroethyl) 1-Chloropropylene [1-Propene, 1-chloro-] Hexolite methylamine hydrochloride] 2-Chloropropylene [1-Propene, 2-chloro-] Hexyltrichlorosilane Nitrogen trioxide Chlorosarin [o-Isopropyl methylphosphonochloridate] HMX [Cyclotetramethylene-tetranitramine] HN1 (nitrogen mustard-1) [Bis(2-chloroethyl)ethylamine] Nitroglycerine Chlorosoman [o-Pinacolyl methylphosphonochloridate] Nitromannite [, wetted] Chlorosulfonic acid HN2 (nitrogen mustard-2) [Bis(2-chloroethyl)methylamine] HN3 (nitrogen mustard-3) [Tris(2-chloroethyl)amine] Nitromethane Nitrostarch