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Data / Federal rules / 2024-12643

n-Methylpyrrolidone (NMP); Regulation Under the Toxic Substances Control Act (TSCA)

The Environmental Protection Agency published this proposed rule in the Federal Register on June 14, 2024. Comments closed on July 29, 2024.

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What the agency says

The Environmental Protection Agency (EPA or the "Agency") is proposing to address the unreasonable risk of injury to human health presented by n-methylpyrrolidone (NMP) under its conditions of use as documented in EPA's risk evaluation and risk determination for NMP pursuant to the Toxic Substances Control Act (TSCA). NMP is a widely used solvent in a variety of industrial, commercial, and consumer applications including the manufacture and production of electronics such as semiconductors, polymers, petrochemical products, paints and coatings, and paint and coating removers. EPA determined that NMP presents an unreasonable risk of injury to health due to the significant adverse health effects associated with exposure to NMP, including developmental post-implantation fetal loss from short-term exposure and reduced fertility and fecundity from long-term exposure. Additional adverse effects associated with exposure to NMP include liver toxicity, kidney toxicity, immunotoxicity, neurotoxicity, skin irritation, and sensitization. To address the identified unreasonable risk, EPA is proposing to: prohibit the manufacture (including import), processing, and distribution in commerce and use of NMP in several occupational conditions of use; require worker protections through an NMP workplace chemical protection program (WCPP) or prescriptive controls (including concentration limits) for most of the occupational conditions of use; require concentration limits on a consumer product; regulate certain consumer products to prevent commercial use; and establish recordkeeping, labeling, and downstream notification requirements.

Key facts

Document number
2024-12643
Type
Proposed rule
Action
Proposed rule
Agency
Environmental Protection Agency
Published
June 14, 2024
Comments due
July 29, 2024
Dates
Comments must be received on or before July 29, 2024. Under the Paperwork Reduction Act (PRA), 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 July 15, 2024.
Docket
EPA-HQ-OPPT-2020-0744; FRL-8330-02-OCSPP
Regulation ID (RIN)
2070-AK85
Code of Federal Regulations
40 CFR 751
Topics
Chemicals; Environmental protection; Hazardous substances
Significant
Yes, under Executive Order 12866
Pages
61

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 June 2024

Read from the Federal Register API, last updated 2026-10-24. 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.