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United States · Federal: EPA TSCAProposed

NMP: proposed workplace and dermal exposure controls

U.S. EPA proposed restrictions and workplace protections for N-methylpyrrolidone in 2024, with an emphasis on preventing skin contact. The checked sources still describe a proposal, and no final rule or binding compliance date was verified.

Scope to keep in mind

These proposed controls must not be treated as adopted duties. The full rulemaking docket has not been exhaustively checked.

Legal status
Proposed; no final rule verified
Source check
Sep 17, 2026
Topic
N-Methylpyrrolidone
Technical review
Jiaxi · 2026-09-23

What changed

Previous requirement

Existing requirements remain; this research does not establish an existing federal NMP PEL.

New requirement or current position

Proposal would prevent direct skin contact for many uses and restrict specified commercial products and activities.

Who it affects

  • Semiconductors
  • Batteries
  • Coatings
  • Chemical manufacturing

Dates and milestones

Commencement and compliance dates can differ. Read the conditions beside each date, including any stay or local adoption requirement.

Announcement or publication
Jun 14, 2024
Recorded effective date
Not established or not applicable

What this could mean for your IH program

Advisory interpretation: Track product use and dermal exposure pending final action. Do not convert projected relative dates into enforceable calendar deadlines.

Confirm applicability with a qualified practitioner before changing your program.

Questions and qualifications

  • Current EPA page still calls this proposed. No final notice located in targeted search; rulemaking docket not exhaustively searched.

Source evidence

  1. NMP: proposed TSCA risk-management rule

    EPA / Federal Register · 89 FR 51134; Summary; III; proposed 751 subpart E

    June 14, 2024 proposal includes prohibitions and dermal-focused workplace controls; not a finalized occupational limit.

  2. Risk Management for NMP

    EPA · Managing Risks

    Current page describes proposed WCPP, prevention of skin contact and restrictions for specified products and uses.

Related findings

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