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State Standards

There are twenty-eight OSHA-approved State Plans, operating state-wide occupational safety and health programs. State Plans are required to have standards and enforcement programs that are at least as effective as OSHA's and may have different or more stringent requirements.

This section highlights OSHA standards, preambles to final rules (background to final rules), directives (instructions for compliance officers), and other federal standards related to chemical reactivity hazards.


General Industry (29 CFR 1910)

Construction Industry (29 CFR 1926)

  • 1926 Subpart D, Occupational health and environmental controls
    • 1926.59, Hazard communication
    • 1926.64, Process safety management of highly hazardous chemicals
      • Appendix A, List of highly hazardous chemicals, toxics and reactives (Mandatory)
      • Appendix B, Block flow diagram and simplified process flow diagram (Nonmandatory)
      • Appendix C, Compliance guidelines and recommendations for process safety management (Nonmandatory)
      • Appendix D, Sources of further information (Nonmandatory)

Preambles to Final Rules


Other Federal

Department of Transportation (DOT)

  • 49 CFR 105-177, Subtitle B--Other Regulations Relating to Transportation

Environmental Protection Agency (EPA)

  • 40 CFR 68, Chemical Accident Prevention Provisions. Includes a list of regulated substances and thresholds, the petition process for adding or deleting substances to/from the list of regulated substances, the requirements for owners or operators of stationary sources concerning the prevention of accidental releases, and approved state accidental release prevention programs.

*Accessibility Assistance: Contact OSHA's Directorate of Technical Support and Emergency Management at (202) 693-2300 for assistance accessing PDF materials.

All other documents, that are not PDF materials or formatted for the web, are available as Microsoft Office® formats and videos and are noted accordingly. If additional assistance is needed with reading, reviewing or accessing these documents or any figures and illustrations, please also contact OSHA's Directorate of Technical Support and Emergency Management at (202) 693-2300.

**eBooks - EPUB is the most common format for e-Books. If you use a Sony Reader, a Nook, or an iPad you can download the EPUB file format. If you use a Kindle, you can download the MOBI file format.

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