{"data":{"id":"us/6-cfr-27.203","jurisdiction":"us","citation":"6 CFR 27.203","heading":"Calculating the screening threshold quantity by security issue.","body":"(a) General. In calculating whether a facility possesses a chemical of interest that meets the STQ for any security issue, a facility need not include chemicals of interest:\n(1) Used as a structural component;\n(2) Used as products for routine janitorial maintenance;\n(3) Contained in food, drugs, cosmetics, or other personal items used by employees;\n(4) In process water or non-contact cooling water as drawn from environment or municipal sources;\n(5) In air either as compressed air or as part of combustion;\n(6) Contained in articles, as defined in 40 CFR 68.3;\n(7) In solid waste (including hazardous waste) regulated under the Resource Conservation and Recovery Act, 42 U.S.C. 6901 et seq., except for the waste described in 40 CFR 261.33; or\n(8) In naturally occurring hydrocarbon mixtures prior to entry of the mixture into a natural gas processing plant or a petroleum refining process unit. Naturally occurring hydrocarbon mixtures include condensate, crude oil, field gas, and produced water as defined in 40 CFR 68.3.\n(b) Release chemicals—(1) Release-toxic, release-flammable, and release-explosive chemicals. Except as provided in paragraphs (b)(2) and (b)(3), in calculating whether a facility possesses an amount that meets the STQ for release chemicals of interest, the facility shall only include release chemicals of interest:\n(i) In a vessel as defined in 40 CFR 68.3, in a underground storage facility, or stored in a magazine as defined in 27 CFR 555.11;\n(ii) In transportation containers used for storage not incident to transportation, including transportation containers connected to equipment at a facility for loading or unloading and transportation containers detached from the motive power that delivered the container to the facility;\n(iii) Present as process intermediates, by-products, or materials produced incidental to the production of a product if they exist at any given time;\n(iv) In natural gas or liquefied natural gas stored in peak shaving facilities; and\n(v) In gasoline, diesel, kerosene, or jet fuel (including fuels that have flammability hazard ratings of 1, 2, 3, or 4, as determined by using National Fire Protection Association (NFPA) 704: Standard System for the Identification of the Hazards of Materials for Emergency Response [2007 ed.], which is incorporated by reference at § 27.204(a)(2)), stored in aboveground tank farms, including tank farms that are part of pipeline systems;\n(2) Release-toxic, release-flammable, and release-explosive chemicals. Except as provided in paragraph (b)(2)(i), in calculating whether a facility possesses an amount that meets the STQ for release-toxic, release-flammable, and release-explosive chemicals, a facility need not include release-toxic, release-flammable, or release-explosive chemicals of interest that a facility manufactures, processes, or uses in a laboratory at the facility under the supervision of a technically qualified individual as defined in 40 CFR 720.3.\n(i) This exemption does not apply to specialty chemical production; manufacture, processing, or use of substances in pilot plant scale operations; or activities, including research and development, involving chemicals of interest conducted outside the laboratory.\n(ii) [Reserved]\n(3) Propane. In calculating whether a facility possesses an amount that meets the STQ for propane, a facility need not include propane in tanks of 10,000 pounds or less.\n(c) Theft and diversion chemicals. In calculating whether a facility possesses an amount of a theft/diversion chemical of interest that meets the STQ, the facility shall only include theft/diversion chemicals of interest in a transportation packaging, as defined in 49 CFR 171.8. Where a theft/diversion-CW chemical is designated by “CUM 100g,” a facility shall total the quantity of all such designated chemicals in its possession to determine whether the facility possesses theft/diversion-CW chemicals that meet or exceed the STQ of 100 grams.\n(d) Sabotage and contamination chemicals. A facility meets the STQ for a sabotage/contamination chemical of interest if it ships the chemical and is required to placard the shipment of that chemical pursuant to the provisions of subpart F of 49 CFR part 172.","path":["Title 6—Domestic Security","CHAPTER I—DEPARTMENT OF HOMELAND SECURITY, OFFICE OF THE SECRETARY","PART 27—CHEMICAL FACILITY ANTI-TERRORISM STANDARDS","Subpart B—Chemical Facility Security Program"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-6.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:23:54Z","sha256":"df4f548600485c9d8700e91611353a03a522bae9eadca89f1e92d28896fa5691","source_id":"us-cfr","stale":true,"prev":"us/6-cfr-27.200","next":"us/6-cfr-27.204"},"notice":"GroundRules: Original legal text. Not legal advice."}