40 CFR § 372.28 - Lower thresholds for chemicals of special concern.

§ 372.28 Lower thresholds for chemicals of special concern.

(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.

(1) Chemical listing in alphabetic order.

Table 1 to Paragraph (a)(1)

Chemical name CAS No. Reporting threshold
Aldrin 00309-00-2 100
Benzo(g,h,i)perylene 00191-24-2 10
Chlordane 00057-74-9 10
Heptachlor 00076-44-8 10
Hexachlorobenzene 00118-74-1 10
Isodrin 00465-73-6 10
Lead (this lower threshold does not apply to lead when contained in a stainless steel, brass or bronze alloy) 7439-92-1 100
Mercury 07439-97-6 10
Methoxychlor 00072-43-5 100
Octachlorostyrene 29082-74-4 10
Pendimethalin 40487-42-1 100
Pentachlorobenzene 00608-93-5 10
Polychlorinated biphenyl (PCBs) 01336-36-3 10
Tetrabromobisphenol A 00079-94-7 100
Toxaphene 08001-35-2 10
Trifluralin 01582-09-8 100

(2) Chemical categories in alphabetic order.

Table 2 to Paragraph (a)(2)

Category name Reporting threshold
(in pounds unless
otherwise noted)
Dioxin 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.
Hexabromocyclododecane (see § 372.65(c) for a list of chemicals covered by this category) 100
Lead Compounds 100
Mercury compounds 10
Polycyclic aromatic compounds (PACs) (see § 372.65(c) for a list of chemicals covered by this category) 100

(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.

[64 FR 58750, Oct. 29, 1999, as amended at 66 FR 4527, Jan. 17, 2001; 75 FR 72733, Nov. 26, 2010; 81 FR 85444, Nov. 28, 2016; 85 FR 42314, July 14, 2020]

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