CFR

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.

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.

Category name	Reporting threshold
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) (This category includes only those chemicals listed below).	0.1 grams
67562-39-41,2,3,4,6,7,8-Heptachlorodibenzofuran
55673-89-71,2,3,4,7,8,9-Heptachlorodibenzofuran
70648-26-91,2,3,4,7,8-Hexachlorodibenzofuran
57117-44-91,2,3,6,7,8-Hexachlorodibenzofuran
72918-21-91,2,3,7,8,9-Hexachlorodibenzofuran
60851-34-52,3,4,6,7,8-Hexachlorodibenzofuran
39227-28-61,2,3,4,7,8-Hexachlorodibenzo-p-dioxin
57653-85-71,2,3,6,7,8-Hexachlorodibenzo-p-dioxin
19408-74-31,2,3,7,8,9-Hexachlorodibenzo-p-dioxin
35822-46-91,2,3,4,6,7,8-Heptachlorodibenzo-p-dioxin
Lead Compounds	100
39001-02-01,2,3,4,6,7,8,9-Octachlorodibenzofuran
03268-87-91,2,3,4,6,7,8,9-Octachlorodibenzo-p-dioxin
57117-41-61,2,3,7,8-Pentachlorodibenzofuran
57117-31-42,3,4,7,8-Pentachlorodibenzofuran
40321-76-41,2,3,7,8-Pentachlorodibenzo-p-dioxin
51207-31-92,3,7,8-Tetrachlorodibenzofuran
01746-01-62,3,7,8 Tetrachlorodibenzo-p-dioxin
Mercury compounds	10
Polycyclic aromatic compounds (PACs) (This category includes only those chemicals listed below).	100
00056-55-3Benz(a)anthracene
00205-99-2Benzo(b)fluoranthene
00205-82-3Benzo(j)fluoranthene
00207-08-9Benzo(k)fluoranthene
00206-44-0Benzo(j,k)fluorene
00189-55-9Benzo(r,s,t)pentaphene
00218-01-9Benzo(a)phenanthrene
00050-32-8Benzo(a)pyrene
00226-36-8Dibenz(a,h)acridine
00224-42-0Dibenz(a,j)acridine
Code of Federal Regulations 470
00053-70-3Dibenzo(a,h)anthracene
00194-59-27H-Dibenzo(c,g)carbazole
05385-75-1Dibenzo(a,e)fluoranthene
00192-65-4Dibenzo(a,e)pyrene
00189-64-0Dibenzo(a,h)pyrene
00191-30-0Dibenzo(a,l)pyrene
00057-97-67,12-Dimethylbenz(a)anthracene
42397-64-81,6-Dinitropyrene
42397-65-91,8-Dinitropyrene
00193-39-5Indeno[1,2,3-cd]pyrene
00056-49-53-Methylcholanthrene
03697-24-35-Methylchrysene
07496-02-86-Nitrochrysene
05522-43-01-Nitropyrene
57835-92-44-Nitropyrene

(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.

Code of Federal Regulations

[64 FR 58750, Oct. 29, 1999, as amended at 66 FR 4527, Jan. 17, 2001; 75 FR 72733, Nov. 26, 2010]

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