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Data / Federal rules / 2024-17204

1-Bromopropane (1-BP); Regulation Under the Toxic Substances Control Act (TSCA)

The Environmental Protection Agency published this proposed rule in the Federal Register on August 8, 2024. Comments closed on September 23, 2024.

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What the agency says

The Environmental Protection Agency (EPA or Agency) is proposing to address the unreasonable risk of injury to human health presented by 1-bromopropane (1-BP) (CASRN 106-94-5), also known as n- propyl bromide, under its conditions of use as documented in EPA's August 2020 Risk Evaluation for 1-BP and the December 2022 Revised Risk Determination for 1-BP prepared under the Toxic Substances Control Act (TSCA). 1-BP is a widely used solvent in a variety of occupational and consumer applications, including vapor degreasing, aerosol degreasing, adhesives and sealants, and in insulation. EPA determined that 1-BP presents an unreasonable risk of injury to health due to the significant adverse health effects associated with exposure to 1-BP, including neurotoxicity, developmental toxicity from acute and chronic inhalation exposures and dermal exposures, and cancer from chronic inhalation exposures. TSCA requires that EPA address by rule any unreasonable risk of injury to health or the environment identified in a TSCA risk evaluation and apply requirements to the extent necessary so the chemical no longer presents unreasonable risk. To address the identified unreasonable risk, EPA is proposing requirements to, among other things, prevent consumer access to the chemical, restrict the industrial and commercial use of the chemical while also allowing for a reasonable transition period where an industrial and commercial use of the chemical is being prohibited, and protect workers from the unreasonable risk of 1-BP while on the job.

Key facts

Document number
2024-17204
Type
Proposed rule
Action
Proposed rule
Agency
Environmental Protection Agency
Published
August 8, 2024
Comments due
September 23, 2024
Dates
Comments must be received on or before September 23, 2024. Under the Paperwork Reduction Act, comments on the information collection provisions are best assured of consideration if the Office of Management and Budget (OMB) receives a copy of your comments on or before September 9, 2024.
Docket
EPA-HQ-OPPT-2020-0471; FRL-8156-01-OCSPP
Regulation ID (RIN)
2070-AK73
Code of Federal Regulations
40 CFR 751
Topics
Chemicals; Environmental protection; Hazardous substances
Significant
Yes, under Executive Order 12866
Pages
57

The document on federalregister.gov PDF

Other documents from the Environmental Protection Agency

Everything from the Environmental Protection Agency · Rules on chemicals · Rules on environmental protection · Rules on hazardous substances · Published in August 2024

Read from the Federal Register API, last updated 2026-10-23. The document on federalregister.gov is the official record; dates and dockets can change through later corrections. Free to reuse with credit to SpecStream under CC BY 4.0.