Safety
Confined Space Entry
Entry into a space that is not designed for continuous occupancy, has limited access and egress, and may contain hazardous atmospheres.
What is Confined Space Entry?
A confined space is a space that is large enough for a worker to enter, has limited or restricted means of entry/exit, and is not designed for continuous occupancy. Entry into these spaces is regulated by OSHA due to the serious hazards they present.
Common Confined Spaces in Construction
- Tanks and vessels
- Vaults and manholes
- Trenches and excavations
- Silos and hoppers
- Ductwork and piping
- Attic and crawl spaces
Permit-Required Confined Space
A confined space that contains or has the potential to contain a hazardous atmosphere, material with engulfment potential, converging walls, or any other serious safety hazard.
Entry Requirements
- Entry permit signed by authorized person
- Atmospheric testing before and during entry
- Ventilation
- Attendant stationed outside
- Rescue plan in place
- Communication procedures established
- PPE and rescue equipment available
Related Terms
- Job Safety Analysis (JSA)
A systematic process of identifying potential hazards associated with each step of a job task and developing safe work procedures.
- Lockout/Tagout (LOTO)
A safety procedure ensuring that dangerous machines are properly shut off and not restarted before maintenance is completed.
- Excavation Safety
Safety measures and practices designed to protect workers from hazards associated with excavations, trenches, and earthwork operations.
- OSHA
Occupational Safety and Health Administration. The US federal agency that sets and enforces workplace safety standards.
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