Occupational Safety and Health Administration OSHA


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Know the Law

Mold is addressed in specific OSHA standards for general industry, shipyard employment and construction. This section highlights OSHA standards and documents related to mold.

OSHA Standards
General Industry (29 CFR 1910)
Related Information
Subpart J – General Environmental Controls 1910.141, Sanitation
Maritime (29 CFR 1915, 1917, 1918)
Related Information
1915 – Occup. Safety and Health Standards for Shipyard Employment    
Construction (29 CFR 1926)
Related Information
Subpart D – Occupational Health and Environmental Controls 1926.51, Sanitation
Additional Directives

Note: The "Directives" bullets above link to directives related to each OSHA standard. The directives in this list provide additional information that is not necessarily connected to a specific OSHA standard highlighted on this Safety and Health Topics page.

  • Respiratory Protection. Final Rules 63:1152-1300, (January 8, 1998). Justifies the use of respirators to prevent the inhalation of harmful airborne contaminants that are alive or were released from a living organism. Respirators protect against bacterial infections resulting from inhalation of bacteria and their products that cause a range of diseases.
  • Indoor Air Quality. Proposed Rules 59:15968-16039, (April 5, 1994). OSHA proposed to adopt standards that addressed indoor air quality in indoor work environments.
Additional Letters of Interpretation

Note: The “Letters of interpretation” bullets above link to letters related to each OSHA standard. The letters in this list provide additional information that is not necessarily connected to a specific OSHA standard highlighted on this Safety and Health Topics page.

State Standards

There are 28 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.

National Consensus and Industry Standards

Note: These are NOT OSHA regulations. However, they do provide guidance from their originating organizations related to worker protection.

American National Standards Institute (ANSI)/American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE)

  • 62.1, Ventilation for Acceptable Indoor Air Quality. Sets minimum ventilation rates and other requirements for commercial and institutional buildings.

Institute of Inspection, Cleaning and Restoration Certification (IICRC)

  • S500, Standard and Reference Guide for Professional Water Damage Restoration. Provides a specific set of practical standards for water damage restoration. It does not attempt to teach comprehensive water damage restoration procedures; rather it provides the foundation for basic principles of proper restoration practices.
  • S520, Standard and Reference Guide for Professional Mold Remediation. Establishes mold contamination definitions, descriptions and conditions (1, 2, 3), and general guidance, which, when properly applied, can assist remediators and others in determining criteria that trigger remediation activities or confirm remediation success.
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