OSHAProposed Rule

1,3-Butadiene

Labor & WorkplaceEnvironmentHealthcare

Summary

OSHA is proposing new safety rules to limit worker exposure to 1,3-butadiene, a chemical used in making plastics and synthetic rubber that can cause serious health problems. The rule aims to protect factory and manufacturing workers from breathing in dangerous levels of this chemical during their jobs.

Key Points

  • 1OSHA wants to set stricter limits on how much 1,3-butadiene workers can be exposed to in the workplace
  • 2The chemical is used mainly in rubber, plastic, and chemical manufacturing facilities
  • 3Workers in these industries could face increased health risks including cancer and blood disorders from long-term exposure
  • 4Companies would need to use better equipment, ventilation systems, and safety practices to meet the new standards
  • 5The public has until November 2, 2025 to submit comments about the proposed rule before OSHA makes a final decision

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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