EPA Releases 20 High-Priority Candidate Chemicals Under TSCA

Date: May 21, 2019

In March, the EPA released its list of 20 high-priority candidate chemicals which initiates the prioritization process for the next step in the process – risk evaluation under section 6 of TSCA. In that same document EPA also designated 20 chemical substances as candidates for low-priority substances. The list of 20 high-priority chemical substances are listed below, complete with their CAS numbers. EPA is requesting stakeholders submit relevant information on these chemical substances by June 19. Members should investigate whether these 20 high-priority candidate chemicals are being used in your products or in your processes. MEMA plans to submit comments to EPA. These substances will constitute the bulk of EPA’s work for the next several years.

If motor vehicle part suppliers are using these high-priority chemical candidates, whether they are included in an article or used as a processing chemical (nondimensional), it is important that we communicate these uses to EPA very early, particularly if these chemicals are critical use or if they are used in replacements parts, etc. It is also important for EPA to know whether the industry uses these chemicals in trace amounts or whether the chemical is being phased out. MEMA is communicating TSCA reform issues to the MEMA Environment and Materials Management Subcommittee. Please contact Laurie Holmes with any questions.

Chemical Name

CAS

p-Dichlorobenzene

106-46-7

1,2-Dichloroethane

107-06-2

trans-1,2- Dichloroethylene

156-60-5

o-Dichlorobenzene

95-50-1

1,1,2-Trichloroethane

79-00-5

1,2-Dichloropropane

78-87-5

1,1-Dichloroethane

75-34-3

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

84-74-2

Butyl benzyl phthalate (BBP) - 1,2-Benzene- dicarboxylic acid, 1- butyl 2(phenylmethyl) ester

85-68-7

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

117-81-7

Di-isobutyl phthalate (DIBP) - (1,2-Benzene- dicarboxylic acid, 1,2- bis-(2methylpropyl) ester)

84-69-5

Dicyclohexyl phthalate

84-61-7

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

79-94-7

Tris(2-chloroethyl) phosphate (TCEP)

115-96-8

Phosphoric acid, triphenyl ester (TPP)

115-86-6

Ethylene dibromide

106-93-4

1,3-Butadiene

106-99-0

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

1222-05-5

Formaldehyde

50-00-0

Phthalic anhydride

85-44-9

 

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