OSHAProposed Rule

Inorganic Arsenic

Labor & WorkplaceHealthcareEnvironment

Summary

OSHA is proposing new rules to limit worker exposure to inorganic arsenic, a toxic substance that can cause serious health problems including cancer. The proposed rule would require employers to implement stricter safety measures, monitoring, and medical screening for workers who may come into contact with arsenic on the job.

Key Points

  • 1The rule sets stricter limits on how much arsenic workers can be exposed to in their workplace
  • 2Employers would need to provide medical exams and health monitoring for workers who handle arsenic
  • 3Industries affected include metal processing, manufacturing, pesticide production, and semiconductor manufacturing
  • 4Companies must implement engineering controls and safety practices to reduce worker exposure to safe levels
  • 5Public comment period runs until November 2, 2025, when interested parties can submit feedback before the rule is finalized

Key Dates

Published

August 20, 2025

Comment Deadline

November 2, 2025

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This summary is for informational purposes only. It may not capture all nuances of the regulation. Always refer to the official text for authoritative information.

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