OSHAProposed Rule

13 Carcinogens (4-Nitrobiphenyl, etc.)

Labor & WorkplaceHealthcareEnvironment

Summary

OSHA is proposing new rules to limit worker exposure to 13 dangerous chemicals known to cause cancer, including 4-nitrobiphenyl. The rules would require employers to reduce exposure to these substances in the workplace and protect workers' health through safety measures and monitoring.

Key Points

  • 1The rule targets 13 specific carcinogenic (cancer-causing) chemicals that workers might encounter in manufacturing and industrial jobs
  • 2Employers would be required to minimize worker exposure through engineering controls, protective equipment, and safe work practices
  • 3The public has until November 2, 2025 to submit comments and feedback on the proposed rule
  • 4This is a proposed rule, meaning OSHA is still gathering input before making it official
  • 5The regulation primarily affects workers in chemical, pharmaceutical, and manufacturing industries where these substances are used

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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