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Chemical - Biological - Radiological - Nuclear (CBRN)
Selection Matrix for Emergency Responders

This product is not a standard or regulation, and it has no effect on employers' legal obligations. The guidance is advisory in nature, informational in content, and is intended only as technical assistance to employers in providing a safe and healthful workplace during emergency response operations. This document does not enhance or diminish any existing obligations under the OSH Act. The information in this document is interim guidance only. It is anticipated that NIOSH CBRN approval for all classes of respirators will be available in the near future. This guidance will change at the time NIOSH CBRN certification standards are available for all respirator classes. OSHA also may update this guidance as additional information becomes available in the future.

Additional OSHA Resources

Other Government Websites

Standards/Exposure Guidelines

PPE (General)

NIOSH CBRN Certification

Specific Hazard Information

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