EPA seeks comment on ITC’s revisions to TSCA Section 4€ Priority Testing List

2021-04-28

The U.S. Environmental Protection Agency (EPA) published a Federal Register notice on April 28, 2021, announcing a 30-day comment period on the Toxic Substances Control Act (TSCA) Interagency Testing Committee’s (ITC) revisions to the Priority Testing List. 86 Fed. Reg. 22414>. In the 74th ITC Report, ITC revised the TSCA Section 4(e) Priority Testing List by adding the following 15 high-priority substances designated pursuant to TSCA Section 6(b) and 24 organohalogen flame retardants:

<b>ChemicalSubstance</b>

<b>ChemicalAbstracts Service Registry Number</b>

<b>High-PrioritySubstances</b>

1,3-Butadiene

106-99-0

Butylbenzyl phthalate (BBP) – 1,2-Benzene- dicarboxylic acid, 1- butyl2(phenylmethyl) ester

85-68-7

Dibutylphthalate (DBP) (1,2-Benzene- dicarboxylic acid, 1,2- dibutyl ester)

84-74-2

o-Dichlorobenzene

95-50-1

p-Dichlorobenzene

106-46-7

trans-1,2-Dichloroethylene

156-60-5

1,2-Dichloropropane

78-87-5

Dicyclohexylphthalate

84-61-7

Di-ethylhexylphthalate (DEHP) – (1,2-Benzene- dicarboxylic acid, 1,2- bis(2- ethylhexyl)ester)

117-81-7

Di-isobutylphthalate (DIBP) – (1,2-Benzene- dicarboxylic acid, 1,2- bis-(2methylpropyl)ester)

84-69-5

Formaldehyde

50-00-0

1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta[g]-2-benzopyran (HHCB)

1222-05-5

Phthalicanhydride

85-44-9

4,4′-(1-Methylethylidene)bis[2,6-dibromophenol] (TBBPA)

79-94-7

1,1,2-Trichloroethane

79-00-5

<b>OrganohalogenFlame Retardants</b>

Bis(hexachlorocyclopentadieno)cyclooctane

13560-89-9

1,2-Bis(2,4,6-tribromophenoxy)ethane

37853-59-1

1,1′-Ethane-1,2-diylbis(pentabromobenzene)

84852-53-9

2-(2-Hydroxyethoxy)ethyl2-hydroxypropyl 3,4,5,6-tetrabromophthalate

20566-35-2

2,2′-[(1-Methylethylidene)bis[(2,6-dibromo-4,1-

phenylene)oxymethylene]]bis[oxirane]

3072-84-2

Mixtureof chlorinated linear alkanes C14-17 with 45-52 % chlorine

85535-85-9

N,N-Ethylene-bis(tetrabromophthalimide)

32588-76-4

Pentabromochlorocyclohexane

87-84-3

(Pentabromophenyl)methylacrylate

59447-55-1

Pentabromotoluene

87-83-2

Perbromo-1,4-diphenoxybenzene

58965-66-5

Phosphonicacid, (2-chloroethyl)-, bis(2-chloroethyl) ester

6294-34-4

Propanoicacid, 2-bromo-, methyl ester

5445-17-0

TetrabromobisphenolA-bis(2,3-dibromopropyl ether)

21850-44-2

TetrabromobisphenolA bis(2-hydroxyethyl) ether

4162-45-2

TetrabromobisphenolA diallyl ether

25327-89-3

TetrabromobisphenolA dimethyl ether

37853-61-5

2,4,6-Tribromoaniline

147-82-0

1,3,5-Tribromo-2-(prop-2-en-1-yloxy)benzene

3278-89-5

Tris(2-chloroethyl)phosphite

140-08-9

Tris(2,3-dibromopropyl)phosphate

126-72-7

1,3,5-Tris(2,3-dibromopropyl)-1,3,5-triazine-2,4,6(1H,3H,5H)-trione

52434-90-9

Tris(tribromoneopentyl)phosphate

19186-97-1

2,4,6-Tris-(2,4,6-tribromophenoxy)-1,3,5-triazine

25713-60-4

ITC requests that EPA add these chemical substances and the other five high-priority substances and six organohalogen flame retardants currently on the Priority Testing List to 40 C.F.R. Section 716.120(a), the list of substances subject to the TSCA Section 8(d) Health and Safety Data Reporting rule (40 C.F.R. Part 716). The rule requires manufacturers (including importers) of chemical substances and mixtures added to the Health and Safety Data Reporting rule to submit lists and copies of unpublished health and safety studies to EPA. Comments are due May 28, 2021.

EPA notes that in addition to the chemical substances being added to the Priority Testing List in the 74th ITC Report, the Priority Testing List includes two alkylphenols, 45 High Production Volume (HPV) Challenge Program orphan chemicals, cadmium, a category of cadmium compounds, six non-phthalate plasticizers, 25 phosphate ester flame retardants, two other flame retardants, nine chemicals to which children living near hazardous waste sites may be exposed, and 19 diisocyanates and related compounds.

Read More

TSCAblog, 28 April 2021
; http://www.tscablog.com/entry/epa-seeks-comment-on-itcs-revisions-to-tsca-section-4e-priority-testing-lis