Chemicals Undergoing Risk Evaluation under TSCA
The existing chemicals listed on this page are undergoing risk evaluation as part of EPA’s existing chemical process under the Toxic Substances Control Act (TSCA) to determine whether they present an unreasonable risk to public health or the environment under the conditions of use.
Learn more about:
- The risk evaluation process for existing chemicals under TSCA
- The prioritization process, and how chemicals are identified as a high priority for risk evaluation
- Manufacturer-requested risk evaluations
- Risk management for existing chemicals
| Chemical Name | CASRN | Chemical Group | Date Initiated | Docket Number(s) | Status* | Agency Contact |
|---|---|---|---|---|---|---|
| Asbestos | 1332-21-4 | N/A | December 2016 | EPA-HQ-OPPT-2016-0736; EPA-HQ-OPPT-2019-0501 | Final risk evaluation | Alie Muneer Email: muneer.alie@epa.gov Phone: (202) 564-6369 |
| 1-Bromopropane | 106-94-5 | Solvents | December 2016 | EPA-HQ-OPPT-2019-0235; EPA-HQ-OPPT-2016-0741 | Final risk evaluation | Ana Corado Email: Corado.ana@epa.gov Phone: (202) 564-0140 |
| Carbon Tetrachloride | 56-23-5 | Solvents | December 2016 | EPA-HQ-OPPT-2019-0499; | Final risk evaluation | Claudia Menasche Email: Menasche.claudia@epa.gov Phone: (202) 564-3391 |
| C.I. Pigment Violet 29 (PV29) | 81-33-4 | Pigments | December 2016 | EPA-HQ-OPPT-2018-0604; EPA-HQ-OPPT-2016-0725 | Final risk evaluation | Hannah Blaufuss Email: Blaufuss.hannah@epa.gov Phone: (202) 564-5614 |
| Cyclic Aliphatic Bromide Cluster (HBCD) | 25637-99-4; 3194-55-6; 3194-57-8 | Flame retardants | December 2016 | EPA-HQ-OPPT-2019-0237; EPA-HQ-OPPT-2016-0735 | Final risk evaluation | Sue Slotnick Email: Slotnick.sue@epa.gov Phone: (202) 566-1973 |
| 1,4-dioxane | 123-91-1 | Solvents | December 2016 | EPA-HQ-OPPT-2019-0238; EPA-HQ-OPPT-2016-0723 | Final risk evaluation | Cindy Wheeler Email: Wheeler.cindy@epa.gov Phone: (202) 566-0484 |
| Methylene Chloride | 75-09-2 | Solvents | December 2016 | EPA-HQ-OPPT-2019-0437; EPA-HQ-OPPT-2016-0742 | Final risk evaluation | Ingrid Feustel Email: Feustel.ingrid@epa.gov Phone: (202) 564-3199 |
| N-Methylpyrrolidone (NMP) | 872-50-4 | Solvents | December 2016 | EPA-HQ-OPPT-2019-0236; EPA-HQ-OPPT-2016-0743 | Final risk evaluation | Eileen Sheehan Email: Sheehan.eileen@epa.gov Phone: (415) 972-3287 |
| Perchloroethylene | 127-18-4 | Solvents | December 2016 | EPA-HQ-OPPT-2019-0502; EPA-HQ-OPPT-2016-0732 | Final risk evaluation | Tyler Lloyd Email: Lloyd.tyler@epa.gov Phone: (202) 564-4016 |
| Trichlorethylene (TCE) | 79-01-6 | Solvents | December 2016 | EPA-HQ-OPPT-2016-0737; EPA-HQ-OPPT-2019-0500 | Final risk evaluation | Katie McNamara Email: Mcnamara.katelan@epa.gov Phone: (202) 564-4361 |
| p-Dichlorobenzene | 106-46-7 | N/A | December 2019 | EPA-HQ-OPPT-2018-0446 | Final scope | Eileen Sheehan Email: Sheehan.eileen@epa.gov Phone: (415) 972-3287 |
| 1,2-Dichloroethane | 107-06-2 | Solvents | December 2019 | EPA-HQ-OPPT-2018-0427 | Final scope | Katie McNamara Email: Mcnamara.katelan@epa.gov Phone: (202) 564-4361 |
| trans-1,2- Dichloroethylene | 156-60-5 | Solvents | December 2019 | EPA-HQ-OPPT-2018-0465 | Final scope | Brandon Huston Email: Huston.brandon@epa.gov Phone: (202) 564-5992 |
| o-Dichlorobenzene | 95-50-1 | N/A | December 2019 | EPA-HQ-OPPT-2018-0444 | Final scope | Kelly Summers Email: Summers.kelly@epa.gov Phone: (202) 564-2201 |
| 1,1,2-Trichloroethane | 79-00-5 | Solvents | December 2019 | EPA-HQ-OPPT-2018-0421 | Final scope | Katie McNamara Email: Mcnamara.katelan@epa.gov Phone: (202) 564-4361 |
| 1,2-Dichloropropane | 78-87-5 | Solvents | December 2019 | EPA-HQ-OPPT-2018-0428 | Final scope | Clara Hull Email: Hull.clara@epa.gov Phone: (202) 564-3954 |
| 1,1-Dichloroethane | 75-34-3 | Solvents | December 2019 | EPA-HQ-OPPT-2018-0426 | Final scope | Clara Hull Email: Hull.clara@epa.gov Phone: (202) 564-3954 |
| Dibutyl phthalate (1,2-Benzene- dicarboxylic acid, 1,2- dibutyl ester) | 84-74-2 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0503 | Final scope | Peter Gimlin Email: Gimlin.peter@epa.gov Phone: (202) 566-0515 |
| Butyl benzyl phthalate - 1,2-Benzene- dicarboxylic acid, 1- butyl 2(phenylmethyl) ester | 85-68-7 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0501 | Final scope | Bethany Masten Email: Masten.bethany@epa.gov Phone: (202) 564-8803 |
| Di-ethylhexyl phthalate - (1,2-Benzene- dicarboxylic acid, 1,2- bis(2-ethylhexyl) ester) | 117-81-7 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0433 | Final scope | Sarah Cox Email: Cox.sarah@epa.gov Phone: (202) 564-3961 |
| Di-isobutyl phthalate - (1,2-Benzene- dicarboxylic acid, 1,2- bis-(2methylpropyl) ester) | 84-69-5 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0434 | Final scope | Jordan Garbin Email: Garbin.jordan@epa.gov Phone: (202) 564-4156 |
| Dicyclohexyl phthalate | 84-61-7 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0504 | Final scope | Claire Brisse Email: Brisse.claire@epa.gov Phone: (202) 564-9004 |
| Di-isodecyl phthalate (DIDP) – (1,2-benzenedicarboxylic acid 1,2-diisodecyl ester) | 26761-40-0, 68515-49-1 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0435 | Draft Scope | Bethany Masten Email: Masten.bethany@epa.gov Phone: (202) 564-8803 |
| Di-isononyl phthalate (DINP) – (1,2-benzenedicarboxylic acid, 1,2-diisononyl ester) | 28553-12-0; 68515-48-0 | Phthalates | December 2019 | EPA-HQ-OPPT-2018-0436 | Draft scope | Bethany Masten Email: Masten.bethany@epa.gov Phone: (202) 564-8803 |
| 4,4'-(1-Methylethylidene)bis[2, 6-dibromophenol] (TBBPA) | 79-94-7 | Flame retardants | December 2019 | EPA-HQ-OPPT-2018-0462 | Final scope | Hannah Blaufuss Email: Blaufuss.hannah@epa.gov Phone: (202) 564-5614 |
| Tris(2-chloroethyl) phosphate (TCEP) | 115-96-8 | Flame retardants | December 2019 | EPA-HQ-OPPT-2018-0476 | Final scope | Claudia Menasche Email: Menasche.claudia@epa.gov Phone: (202) 564-3391 |
| Phosphoric acid, triphenyl ester (TPP) | 115-86-6 | Flame retardants | December 2019 | EPA-HQ-OPPT-2018-0458 | Final scope | Sue Slotnick Email: Slotnick.sue@epa.gov Phone: (202) 566-1973 |
| Ethylene dibromide | 106-93-4 | N/A | December 2019 | EPA-HQ-OPPT-2018-0488 | Final scope | Amy Shuman Email: Shuman.amy@epa.gov Phone: (202) 564-2978 |
| 1,3-Butadiene | 106-99-0 | N/A | December 2019 | EPA-HQ-OPPT-2018-0451 | Final scope | Jeff Taylor Email: Taylor.jeffrey@epa.gov Phone: (202) 564-8828 |
| 1,3,4,6,7,8-Hexahydro-4,6,6,7,8,8-hexamethylcyclopenta [g]-2-benzopyran (HHCB) | 1222-05-5 | Fragrance additives | December 2019 | EPA-HQ-OPPT-2018-0430 | Final scope | Ana Corado Email: Corado.ana@epa.gov Phone: (202) 564-0140 |
| Formaldehyde | 50-00-0 | N/A | December 2019 | EPA-HQ-OPPT-2018-0438 | Final scope | Todd Coleman Email: Coleman.todd@epa.gov Phone: (202) 564-1208 |
| Phthalic anhydride | 85-44-9 | N/A | December 2019 | EPA-HQ-OPPT-2018-0459 | Final scope | Victoria Ellenbogen Email: Ellenbogen.victoria@epa.gov Phone: (202)564-2053 |
|
Octamethylcyclotetra- siloxane (D4) |
556-67-2 | N/A | October 2020 | EPA-HQ-OPPT-2018-0443 | Initiated | Bethany Masten Email: Masten.bethany@epa.gov Phone: (202) 564-8803 |
* Status: “Initiated”: Chemicals that have been designated as a high priority or for which risk evaluation has begun. “Draft Scope”: EPA has published a draft scope document for public comment. “Final Scope”: EPA has published a final scope document (or problem formulation for the first 10). “Draft risk evaluation”: EPA has published a draft risk evaluation. “Final risk evaluation”: EPA has completed a final risk evaluation.