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Proposed rule 2025-11630

TITLE: 1,3-Butadiene

This proposed rule revises some substance-specific respirator requirements to allow different types of respirators to be used under OSHA's 1,3-Butadiene standard and better aligns this standard with OSHA's respiratory protection standard.

Source: FederalRegister.gov API v1Recently refreshed. Last successful refresh: 2026-07-31 22:49:02 UTC.

Source-supplied record

Document details

Document number
2025-11630
Published
Jul 1, 2025
Effective
Not supplied
Comments close
Not supplied
Federal Register citation
90 FR 28302

Docket identifiers

  • Docket No. OSHA-2025-0020

CFR references

  • Title 29, part 1910
  • Title 29, part 1915
  • Title 29, part 1917
  • Title 29, part 1918
  • Title 29, part 1926