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State Standards

Twenty-five states, Puerto Rico and the Virgin Islands have OSHA-approved State Plans and have adopted their own standards and enforcement policies. For the most part, these states adopt standards that are identical to Federal OSHA. However, some states have adopted different standards applicable to this topic or may have different enforcement policies.

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.
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