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OSHA Standards

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.

Isocyanates hazards are addressed in specific standards for general industry, shipyard employment, and the construction industry. This section highlights OSHA standards and standard interpretations (official letters of interpretation of the standards) related to isocyanates.

General Industry (29 CFR 1910)

Shipyard Employment (29 CFR 1915)

Construction Industry (29 CFR 1926)

  • 1926 Subpart D, Occupational health and environmental controls
    • 1926.55, Gases, vapors, fumes, dusts, and mists
    • 1926.64, Process safety management of highly hazardous chemicals
      • Appendix A, List of highly hazardous chemicals, toxics and reactives (Mandatory)
Directives
Standard Interpretations

*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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