Occupational Safety and Health Administration OSHA

Confined Spaces

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Confined Spaces Menu


Visit the Confined Spaces in Construction - Final Rule Page for information on the final rule.

Confined spaces are addressed in specific OSHA standards for general industry, shipyard employment and construction. This section highlights OSHA standards and documents related to confined spaces.

OSHA Standards
General Industry (29 CFR 1910)
Related Information
Subpart H – Hazardous Materials 1910.124, General requirements for dipping and coating operations
Subpart J – General Environmental Controls 1910.146, Permit-required confined spaces
Subpart Q – Welding, Cutting, and Brazing 1910.252, General requirements
Subpart R – Special Industriess 1910.261, Pulp, paper, and paperboard mills
1910.268, Telecommunications
1910.272, Grain handling facilities
Maritime (29 CFR 1915, 1917, 1918)
Related Information
1915 Subpart B – Confined and Enclosed Spaces and Other Dangerous Atmospheres in Shipyard Employment  
1915.11, Scope, application, and definitions applicable to this subpart
1915.12, Precautions and the order of testing before entering confined and enclosed spaces and other dangerous atmospheres
1915.13, Cleaning and other cold work
1915.14, Hot work
1915.15, Maintenance of safe conditions
1915.16, Warning signs and labels
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.

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.

National Consensus 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 Safety Engineers (ASSE)

  • Z117.1 - 2009, Safety Requirements for Confined Spaces
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