EPA is advancing its review of five chemicals under the Toxic Substances Control Act (TSCA) and has released draft technical support documents for public comment and independent scientific peer review.

The chemicals under review include:

 1,1,2-Trichloroethane

• Tetrabromobisphenol A (TBBPA)

• 1,2-Dichloropropane

• Ethylene Dibromide (EDB)

• trans-1,2-Dichloroethylene

These chemicals are used in products and processes including flame retardants, cleaning and degreasing products, leaded aviation gasoline, laboratories, and industrial manufacturing.

EPA’s draft assessments examine potential risks to:

• Workers and occupational settings

• Communities located near sources of exposure

• Children and other sensitive populations

• Fish, wildlife, and environmental resources

EPA is emphasizing the use of current scientific data and is seeking feedback on how real-world exposures should be considered in future risk evaluations.

Public Comment Deadline: July 23, 2026

Comments on the draft technical support documents and peer review questions may be submitted through Docket EPA-HQ-OPPT-2026-2246 at Regulations.gov.

SACC Preparatory Meeting

July 23, 2026

Science Advisory Committee on Chemicals (SACC) Peer Review Meeting

August 3–7, 2026

The SACC will review EPA’s draft technical support documents and provide independent scientific feedback before EPA finalizes its risk evaluations.

Learn more and submit comments:

https://www.regulations.gov

EPA’s draft documents do not represent final agency decisions, and findings may change based on public comments and peer review.