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

Impact Assessment

If you are a manufacturer or employer using these 13 carcinogens, you must implement new safety controls, monitoring systems, and exposure reduction measures to protect your workers from cancer-causing substances.

Impact Level
Significant
Geographic Scope

National

Compliance Cost

Significant

Who is Affected
ManufacturersWorkers/LaborersSmall Businesses

Key Dates

Published

August 20, 2025

Comment Deadline

November 2, 2025

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Regulatory Connections

Amends CFR Sections
29 CFR Part 1910

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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