{"data":{"id":"us/40-cfr-372.28","jurisdiction":"us","citation":"40 CFR 372.28","heading":"Lower thresholds for chemicals of special concern.","body":"(a) Notwithstanding § 372.25 or § 372.27, for the toxic chemicals set forth in this section, the threshold amounts for manufacturing (including importing), processing, and otherwise using such toxic chemicals are as set forth in this section.\n(1) Chemical listing in alphabetic order.\nTable 1 to Paragraph (a)(1)\nChemical name CAS No. Reporting threshold (in pounds)\nAldrin 00309-00-2 100\nBenzo(g,h,i)perylene 00191-24-2 10\nChlordane 00057-74-9 10\nHeptachlor 00076-44-8 10\nHexachlorobenzene 00118-74-1 10\n1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran 1222-05-5 100\nIsodrin 00465-73-6 10\nLead (this lower threshold does not apply to lead when contained in a stainless steel, brass or bronze alloy) 7439-92-1 100\nMercury 07439-97-6 10\nMethoxychlor 00072-43-5 100\nOctachlorostyrene 29082-74-4 10\nPendimethalin 40487-42-1 100\nPentachlorobenzene 00608-93-5 10\nPer- and polyfluoroalkyl substances (Individually listed per- and polyfluoroalkyl substances added by 15 U.S.C. 8921(b)(1) and (c)(1)). (EPA periodically updates the lists of covered chemicals at § 372.65(d) and (e) to reflect chemicals that have been added by 15 U.S.C. 8921) see § 372.65(d) and (e) 100\nPolychlorinated biphenyl (PCBs) 01336-36-3 10\nTetrabromobisphenol A 00079-94-7 100\nToxaphene 08001-35-2 10\nTrifluralin 01582-09-8 100\n(2) Chemical categories in alphabetic order.\nTable 2 to Paragraph (a)(2)\nCategory name Reporting threshold (in pounds unless otherwise noted)\nDioxin and dioxin-like compounds (Manufacturing; and the processing or otherwise use of dioxin and dioxin-like compounds if the dioxin and dioxin-like compounds are present as contaminants in a chemical and if they were created during the manufacturing of that chemical) (see § 372.65(c) for a list of chemicals covered by this category) 0.1 grams.\nHexabromocyclododecane (see § 372.65(c) for a list of chemicals covered by this category) 100\nLead Compounds 100\nMercury compounds 10\nPolycyclic aromatic compounds (PACs) (see § 372.65(c) for a list of chemicals covered by this category) 100\n(b) The threshold determination provisions under § 372.25(c) through (h) and the exemptions under § 372.38(b) through (h) are applicable to the toxic chemicals listed in paragraph (a) of this section.","path":["Title 40—Protection of Environment","CHAPTER I—ENVIRONMENTAL PROTECTION AGENCY","SUBCHAPTER J—SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS","PART 372—TOXIC CHEMICAL RELEASE REPORTING: COMMUNITY RIGHT-TO-KNOW","Subpart B—Reporting Requirements"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-40.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:26:04Z","sha256":"a5895819208097bdd93e431bd9b758aeb00b2dd7ad730460ff1da0a279eea0f4","source_id":"us-cfr","stale":true,"prev":"us/40-cfr-372.27","next":"us/40-cfr-372.30"},"notice":"GroundRules: Original legal text. Not legal advice."}